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Dr. Daniel Mahendran Ratnarajah, MD

Accepting New Patients

(Dr. Daniel M. Ratnarajah, MD)

(4 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

University of Jaffna Faculty of Medicine (1982 - 1990)

600 Seneca Street
Oneida, NY 13421

(315) 401-1991

Dr. Daniel Mahendran Ratnarajah, MD is an internist in Oneida, NY specializing in internal medicine (adult medicine). He graduated from University of Jaffna Faculty of Medicine in 1990 and has 36 years of experience.

Office Locations

600 Seneca Street
Oneida, NY 13421

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In The News (see more mentions in the news)

“Saturday, May 2 from 10 a.m.-11 a.m. on the Oneida Rail Trail "Monday Mile" on Seneca Street in Oneida (beside the Oneida High School) with Dr. Daniel Ratnarajah from MDVIP- affiliated with Primary...”—"'Walk with a Doc' event in Cazenovia next month", Oneida Dispatch, March 2020

“The next walk will take place on Saturday, Sept. 14 from 10-11 a.m. on the Oneida Rail Trail "Monday Mile" on Seneca Street in Oneida, beside the Oneida High School, with Dr. Daniel Ratnarajah from...”—"'Walk with a Doc' on Sept. 14", Oneida Dispatch, September 2019

“The next walk will take place on Saturday, Aug. 17 from 10-11 a.m. on the Oneida Rail Trail "Monday Mile" on Seneca Street in Oneida (beside the Oneida High School) with Dr. Daniel Ratnarajah from...”—"Walk with a Doc encourages healthy lifestyles", Oneida Dispatch, August 2019

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel Mahendran Ratnarajah, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Affordability:

nursing home care

In 2012, Dr. Daniel Mahendran Ratnarajah, MD had a list price for nursing home care that was lower than the list prices billed to Medicare by 75% of providers in related specialties within New York. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2012 were nursing home care, lab tests, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

cardiac procedures	27
doctor visit	870
hospital care	275
inpatient care	275
lab tests	314
nursing home care	390
preventive care	192
ultrasound (sonogram)	27
vaccines	132

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2013 were lab tests, nursing home care, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

cardiac procedures	29
doctor visit	878
hospital care	260
inpatient care	260
lab tests	397
nursing home care	348
preventive care	108
ultrasound (sonogram)	29
vaccines	108

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	244
Female	320

**Ethnicity**
Non-Hispanic White	544
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	165
85 and over	174
Less than 65	88

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2013

Hypertension	69
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	23
Asthma	7
Osteoperosis	8
Atrial Fibrilation	20
Heart Failure	26
Chronic Obstructive Pulmonary Disease	27
Diabetes	35
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2014 were nursing home care, lab tests, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

cardiac procedures	16
doctor visit	742
ear procedures	13
hospital care	226
inpatient care	212
lab tests	351
nursing home care	378
outpatient care	14
preventive care	96
ultrasound (sonogram)	16
vaccines	96

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	242
Female	335

**Ethnicity**
Non-Hispanic White	554
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	163
85 and over	192
Less than 65	83

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2014

Hypertension	67
High Cholesterol	46
Stroke	7
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	26
Asthma	6
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	24
Chronic Obstructive Pulmonary Disease	27
Diabetes	34
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2015 were nursing home care, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

cardiac procedures	11
doctor visit	667
hospital care	143
inpatient care	143
lab tests	165
nursing home care	331
preventive care	150
ultrasound (sonogram)	11
vaccines	150

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	426
Female	592

**Ethnicity**
Non-Hispanic White	978
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	326
85 and over	280
Less than 65	154

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2015

Hypertension	67
High Cholesterol	48
Stroke	7
Ischemic Heart Disease	33
Depression	30
Chronic Kidney Disease	29
Asthma	17
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	27
Chronic Obstructive Pulmonary Disease	29
Diabetes	35
Dementia	17
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2016 were nursing home care, hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

cardiac procedures	16
doctor visit	655
hospital care	155
inpatient care	155
lab tests	128
nursing home care	280
preventive care	76
ultrasound (sonogram)	16
vaccines	76

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	206
Female	265

**Ethnicity**
Non-Hispanic White	448
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	133
From 75 to 84	139
85 and over	129
Less than 65	70

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2016

Hypertension	73
High Cholesterol	54
Stroke	7
Ischemic Heart Disease	36
Depression	28
Chronic Kidney Disease	35
Asthma	31
Osteoperosis	7
Atrial Fibrilation	17
Heart Failure	26
Chronic Obstructive Pulmonary Disease	30
Diabetes	35
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2017 were nursing home care, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

doctor visit	659
hospital care	40
inpatient care	40
lab tests	128
nursing home care	390
preventive care	83
vaccines	83

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	210
Female	281

**Ethnicity**
Non-Hispanic White	465
Black	0
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	156
85 and over	151
Less than 65	62

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2017

Hypertension	73
High Cholesterol	48
Stroke	9
Ischemic Heart Disease	37
Depression	36
Chronic Kidney Disease	40
Asthma	5
Osteoperosis	8
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	30
Diabetes	36
Dementia	25
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2018 were nursing home care, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

blood draw	12
doctor visit	369
lab tests	62
nursing home care	337
preventive care	41
vaccines	41

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	122
Female	159

**Age**
From 65 to 74	67
From 75 to 84	108
85 and over	80
Less than 65	26

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2018

Hypertension	75
High Cholesterol	62
Stroke	11
Ischemic Heart Disease	40
Depression	40
Chronic Kidney Disease	44
Asthma	6
Osteoperosis	8
Atrial Fibrilation	26
Heart Failure	37
Chronic Obstructive Pulmonary Disease	33
Diabetes	40
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2019 were nursing home care, preventive care and vaccines.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

doctor visit	402
nursing home care	216
preventive care	26
vaccines	26

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	92
Female	119

**Age**
From 65 to 74	50
From 75 to 84	72
85 and over	61
Less than 65	28

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2019

Hypertension	71
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	34
Depression	42
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	0
Atrial Fibrilation	17
Heart Failure	35
Chronic Obstructive Pulmonary Disease	25
Diabetes	35
Dementia	27
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2020 were nursing home care.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

doctor visit	388
nursing home care	181

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	82
Female	93

**Age**
From 65 to 74	50
From 75 to 84	58
85 and over	45
Less than 65	22

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2020

Hypertension	66
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	37
Depression	34
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	7
Atrial Fibrilation	23
Heart Failure	28
Chronic Obstructive Pulmonary Disease	33
Diabetes	40
Dementia	22
Cancer	17

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2021 were nursing home care.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

doctor visit	401
nursing home care	180

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	73
Female	68

**Age**
From 65 to 74	42
From 75 to 84	51
85 and over	30
Less than 65	18

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2021

Hypertension	66
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	33
Depression	38
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Dementia	23
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY during 2022 were nursing home care.

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

doctor visit	338
nursing home care	46

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	63
Female	66

**Age**
From 65 to 74	43
From 75 to 84	47
85 and over	26
Less than 65	13

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	16
Asthma	9
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	19
Chronic Obstructive Pulmonary Disease	27
Diabetes	39
Dementia	16
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Daniel Mahendran Ratnarajah, MD for Medicare patients.

The highest averages for the top procedures that Dr. Daniel Mahendran Ratnarajah, MD treated as an internist in Oneida, NY were nursing home care, lab tests, hospital care and inpatient care.

blood draw	12
cardiac procedures	19
doctor visit	579
ear procedures	13
hospital care	183
inpatient care	180
lab tests	220
nursing home care	279
outpatient care	14
preventive care	96
ultrasound (sonogram)	19
vaccines	89

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD.

**Gender**
Male	160
Female	208

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	271
Native American / Alaskan Native	0
Hispanic	0
Other	1

**Age**
75 to 84	116
85 and over	106
Less than 65	51
65 to 74	94

Average of Total of Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Daniel Mahendran Ratnarajah, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	63
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	31
Depression	29
Chronic Kidney Disease	29
Asthma	7
Osteoporosis	5
Heart Failure	25
Chronic Obstructive Pulmonary Disease	25
Diabetes	33
Atrial Fibrillation	18
Dementia	19
Cancer	14

Education & Training

Dr. Daniel Mahendran Ratnarajah, MD graduated from University of Jaffna Faculty of Medicine in 1990. He completed residency at University of Connecticut Affiliated Hospitals. He has a state license in New York.

Medical School: University of Jaffna Faculty of Medicine (1990)

Residency: University of Connecticut Affiliated Hospitals (1994)

Licensed In: New York

Ratings & Reviews

Dr. Daniel Mahendran Ratnarajah, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. Daniel Mahendran Ratnarajah, MD from all over the web to help you find the right in Oneida, NY.

Overall Rating

(4 Ratings)

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General Payments

These charts describe general payments received by Dr. Daniel Mahendran Ratnarajah, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$1,245 BREZTRI $303	FARXIGA $301	SYMBICORT $259	BYDUREON $122	BEVESPI AEROSPHERE $91	Other $169
AbbVie Inc.	$871 VRAYLAR $213	Rinvoq $191	UBRELVY $182	Humira $123	Skyrizi $67	Other $95
Pfizer Inc.	$682 ELIQUIS $201	COLOGUARD $134	EUCRISA $73	ABRYSVO $54	PREVNAR - 13 $54	Other $166
GlaxoSmithKline, LLC.	$668 TRELEGY ELLIPTA $255	BREO $185	SHINGRIX $58	INCRUSE $55	ANORO ELLIPTA $41	Other $75
Novartis Pharmaceuticals Corporation	$583 COSENTYX $377	ENTRESTO $109	LEQVIO $97
Other	$5,361 XARELTO $355	Myrbetriq $290	Humira $216	Ozempic $193	Vascepa $192	Other $4,116

**Types of Payments**
Food and Beverage	$9,364
Education	$46

Biography

Dr. Daniel Ratnarajah has received a 5.0 out of 5 star rating by his patients. After attending the University of Jaffna Faculty of Medicine for medical school, Dr. Ratnarajah completed his residency training at a hospital affiliated with the University of Connecticut. Distinctions awarded to Dr. Ratnarajah include: Golden to the Core Award, Oneida Healthcare Foundation; Board Leadership Award; and M&T Bank Non-Profit Award. He speaks Tamil. He is professionally affiliated with Oneida Healthcare Center. He welcomes new patients at his office inOneida, NY as reported by Yext.

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Dr. Daniel Mahendran Ratnarajah, MD

Office Locations

In The News (see more mentions in the news)

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel Mahendran Ratnarajah, MD in 2023

By Affordability:

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. Daniel Mahendran Ratnarajah, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Daniel Mahendran Ratnarajah, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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