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Dr. Diana W. Lau, MD, Rheumatology

Accepting New Patients

(119 Ratings)

Specializes in: Adult Rheumatology

Stony Brook University Medical Center, School of Medicine

632 W GIBSON ROAD
WOODLAND, CA 95695

(530) 668-2600

Dr. Diana W. Lau, MD, Rheumatology is a rheumatologist in WOODLAND, CA specializing in adult rheumatology. She graduated from Stony Brook University Medical Center, School of Medicine. Dr. Diana W. Lau, MD, Rheumatology is affiliated with Dignity Health and DHMF - California Woodland Clinic.

Office Locations

632 W GIBSON ROAD
WOODLAND, CA 95695

open_in_new

In The News

“Woodland Healthcare Rheumatologist Dr. Diana Lau will discuss the signs, symptoms and treatment of arthritis.”—"Woodland Healthcare offers November health seminars", Daily Democrat, September 2008

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2012 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	39
doctor visit	1057
injections	39

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2013 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	26
doctor visit	971
injections	26

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	82
Female	387

**Ethnicity**
Non-Hispanic White	342
Black	17
Hispanic	70
Asian	27
Other	0
Native American	0

**Age**
From 65 to 74	220
From 75 to 84	103
85 and over	38
Less than 65	108

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2013

Hypertension	64
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	7
Cancer	4

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

doctor visit	1015

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	82
Female	385

**Ethnicity**
Non-Hispanic White	336
Black	0
Hispanic	76
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	214
From 75 to 84	108
85 and over	41
Less than 65	104

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2014

Hypertension	63
High Cholesterol	48
Stroke	2
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2015 were preventive care, vaccines, aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	20
doctor visit	1145
injections	20
preventive care	25
vaccines	25

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	180
Female	762

**Ethnicity**
Non-Hispanic White	644
Black	0
Hispanic	186
Asian	66
Other	0
Native American	0

**Age**
From 65 to 74	422
From 75 to 84	216
85 and over	66
Less than 65	238

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2015

Hypertension	65
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	24
Depression	25
Chronic Kidney Disease	22
Asthma	14
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	28
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2016 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	40
doctor visit	1163
injections	40

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	86
Female	396

**Ethnicity**
Non-Hispanic White	325
Black	0
Hispanic	103
Asian	31
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	120
85 and over	34
Less than 65	123

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2016

Hypertension	66
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	22
Depression	23
Chronic Kidney Disease	24
Asthma	18
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	7
Cancer	4

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2017 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	32
doctor visit	1127
injections	32

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	88
Female	375

**Ethnicity**
Non-Hispanic White	308
Black	0
Hispanic	96
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	195
From 75 to 84	118
85 and over	39
Less than 65	111

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2017

Hypertension	63
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	24
Depression	24
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	6
Cancer	4

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2018 were aspiration, injections, preventive care and vaccines.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	32
doctor visit	1137
injections	32
preventive care	11
vaccines	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	95
Female	371

**Ethnicity**
Non-Hispanic White	311
Black	0
Hispanic	99
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	125
85 and over	43
Less than 65	0

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2018

Hypertension	62
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	25
Depression	25
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2019 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	24
doctor visit	1149
injections	24

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	81
Female	392

**Ethnicity**
Non-Hispanic White	315
Black	0
Hispanic	100
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	135
85 and over	0
Less than 65	98

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2019

Hypertension	66
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	25
Depression	27
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	4
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2020 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	26
doctor visit	1021
injections	26

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	80
Female	375

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	95
Asian	32
Other	14
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	132
85 and over	29
Less than 65	81

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2020

Hypertension	59
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	25
Depression	24
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2021 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	21
doctor visit	1040
injections	21

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	67
Female	346

**Ethnicity**
Non-Hispanic White	267
Black	0
Hispanic	91
Asian	33
Other	0
Native American	0

**Age**
From 65 to 74	182
From 75 to 84	128
85 and over	20
Less than 65	83

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2021

Hypertension	66
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	23
Depression	23
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	19
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA during 2022 were aspiration and injections.

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

aspiration	29
doctor visit	1115
injections	29

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	74
Female	367

**Ethnicity**
Non-Hispanic White	284
Black	0
Hispanic	98
Asian	39
Other	0
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	128
85 and over	37
Less than 65	80

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2022

Hypertension	75
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	15
Depression	22
Chronic Kidney Disease	19
Asthma	11
Osteoperosis	23
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	4
Cancer	7

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

doctor visit	1131

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Male	77
Female	374

**Ethnicity**
Non-Hispanic White	304
Black	0
Hispanic	84
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	131
85 and over	48
Less than 65	78

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2023

Hypertension	75
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	17
Depression	21
Chronic Kidney Disease	20
Asthma	12
Osteoperosis	23
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	3
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Diana W. Lau, MD, Rheumatology for Medicare patients.

The highest averages for the top procedures that Dr. Diana W. Lau, MD, Rheumatology treated as a rheumatologist in WOODLAND, CA were aspiration, injections, preventive care and vaccines.

aspiration	28
doctor visit	1089
injections	28
preventive care	18
vaccines	18

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology.

**Gender**
Female	377
Male	82

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	34
Non-Hispanic White	311
Native American / Alaskan Native	0
Hispanic	91
Other	1

**Age**
75 to 84	120
85 and over	32
Less than 65	92
65 to 74	203

Average of Total of Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Diana W. Lau, MD, Rheumatology treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	60
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	21
Depression	21
Chronic Kidney Disease	22
Asthma	9
Osteoporosis	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	27
Atrial Fibrillation	9
Dementia	5
Cancer	5

Education & Training

Dr. Diana W. Lau, MD, Rheumatology graduated from Stony Brook University Medical Center, School of Medicine. She is certified by the Board Certification: Internal Medicine (Sub: Rheumatology) and has a state license in California.

Medical School: Stony Brook University Medical Center, School of Medicine

Board Certification: Board Certification: Internal Medicine (Sub: Rheumatology)

Licensed In: California

Affiliations & Hospitals

Dr. Diana W. Lau, MD, Rheumatology is associated with these hospitals and organizations:

Dignity Health

DHMF - California Woodland Clinic

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Diana W. Lau, MD, Rheumatology appears to accept the following insurance providers: Humana ChoiceCare Network, HealthSmart, United Healthcare, Aetna, TRICARE, Medicare, Cigna, Centene, First Health, Blue Shield, Private Healthcare Systems (PHCS), Health Net, Kaiser Permanente, Magellan Health Services, Managed Health Network (MHN), AON Active Health Exchange, Meritain Health, Connected Care, Western Health Adv, HMC, Partnership, UBH and Networks By Design.

Insurance Accepted by Provider includes:

According to our sources, Dr. Diana W. Lau, MD, Rheumatology accepts the following insurance providers:

Humana ChoiceCare Network

HealthSmart

United Healthcare

Aetna

TRICARE

Medicare

Cigna

Centene

First Health

Blue Shield

Private Healthcare Systems (PHCS)

Health Net

Kaiser Permanente

Magellan Health Services

Managed Health Network (MHN)

AON Active Health Exchange

Meritain Health

Connected Care

Western Health Adv

HMC

Partnership

UBH

Networks By Design

Ratings & Reviews

Dr. Diana W. Lau, MD, Rheumatology has an exceptional overall rating with an average of 4.93 out of 5 stars based on 119 ratings. We collect ratings and reviews of Dr. Diana W. Lau, MD, Rheumatology from all over the web to help you find the right in WOODLAND, CA.

4.93

Overall Rating

(119 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2025-11-23

Patient verified via Press Ganey

Dr. Lau is terrific! She's very knowledgeable, professional and ensures I'm getting good care. She was the first to get a little suspicious of some of my bloodwork and suggested I speak with my GP about it. Turned out my kidneys weren't functioning so well. She explains everything to me and because of that, I trust her wholeheartedly. Dr. Lau is an excellent RA doctor.

Overall Rating: 5.0 2025-10-20

Patient verified via Press Ganey

Dr. Lau is the best doctor I have been a patient of. She is excellent at explaining things to me. She answers all my questions very thoroughly and in understandable terms. She takes whatever time is needed to discuss my medical treatment with me.She is very kind and I really appreciate her and her medical assistant.

Overall Rating: 5.0 2026-02-10

Patient verified via Press Ganey

Dr Lau was very thorough and caring. She took the time to explain everything so my husband and I could understand. She listened to my concerns and addressed each of them. I am extremely pleased and will recommend her to all my friends and to my other doctors so they can refer their patients to her.

Overall Rating: 5.0 2025-03-13

Patient verified via Press Ganey

Dr. Lau has always been very friendly and always listens to me. I have been seeing her now for 20 years . I have since retired and found another health Insurance that is accepted there because I wanted to continue seeing her. She is wonderful.

Overall Rating: 5.0 2025-01-25

Patient verified via Press Ganey

Dr Lau sees me every 3mos. I know she sees many patients in between but each time I see her, she remembers me amd my concerns and she's very good at what she does. She makes sense of everything and I leave knowing what the plan is and why.

Overall Rating: 5.0 2024-10-13

Patient verified via Press Ganey

Dr Lau is incredibly professional, very compassionate and has been amazing treating my RA and sjrogrens diseases

Overall Rating: 5.0 2025-09-10

Patient verified via Press Ganey

Provider listened to concerns, asked me a bunch of questions to better pinpoint the issue. Took time and care.

Overall Rating: 5.0 2025-01-28

Patient verified via Press Ganey

My doctor asks about about my condition, and listens to my issues and questions.

Overall Rating: 5.0 2024-01-04

Patient verified via Press Ganey

Dr. Diane Lau is a very good doctor and is concerned with her patients needs

Overall Rating: 5.0 2026-03-09

Patient verified via Press Ganey

Always recommend her. She is very detailed and kind. Best doctor around.

To see all 119 reviews for Dr. Diana W. Lau, MD, Rheumatology, view their full profile.

General Payments

These charts describe general payments received by Dr. Diana W. Lau, MD, Rheumatology. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Amgen Inc.	$2,997 Enbrel $1,385	Prolia $857	Tavneos $282	Repatha $153	EVENITY $54	Other $267
AbbVie, Inc.	$1,261 Humira $977	Rinvoq $100	$185
Celgene Corporation	$972 Otezla $855	$117
GlaxoSmithKline, LLC.	$937 BENLYSTA $875	$62
Novartis Pharmaceuticals Corporation	$910 COSENTYX $735	NON BRAND $175
Other	$6,149 XELJANZ $781	Rinvoq $507	LUPKYNIS $455	Cimzia $384	STELARA $321	Other $3,700

**Types of Payments**
Food and Beverage	$12,571
Consulting Fee	$500
Education	$157

Biography

Dr. Diana Lau is an adult rheumatology specialist. She studied medicine at Stony Brook University Medical Center, School of Medicine. She has received a 5.0 out of 5 star rating by her patients. Magellan Health Services, Anthem, and Blue California are among the insurance carriers that Dr. Lau honors. She is professionally affiliated with Dignity Health Medical Foundation and Woodland Memorial Hospital. Dr. Lau's practice in Woodland, CA is open to new patients as reported by Doctor.com.

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Dr. Diana W. Lau, MD, Rheumatology

Office Locations

In The News

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Diana W. Lau, MD, Rheumatology From 2012 - 2023

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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