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Dr. Katherine Mae Massa, MD

Accepting New Patients

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Specializes in: Maternal and Fetal Medicine

Temple University School of Medicine (2013)

Professional interests include: prenatal diagnosis

20 Progress Point Parkway Suite: 126
O'Fallon, MO 63368

(314) 454-8181

Dr. Katherine Mae Massa, MD is a perinatologist in O'Fallon, MO specializing in maternal and fetal medicine. She graduated from Temple University School of Medicine in 2013 and has 13 years of experience. Dr. Katherine Mae Massa, MD is affiliated with WashU Medicine, Progress West Hospital, Missouri Baptist Medical Center, BJC HealthCare, Barnes-Jewish Hospital, Washington University in St. Louis (WUSTL) and WashU Medicine.

Office Locations

WashU Medicine

20 Progress Point Parkway Suite 126, Medical Office Building 1
O'Fallon, MO 63368

(314) 454-8181

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Barnes-Jewish Hospital

20 Progress Point Parkway Suite: 126
O'Fallon, MO 63368

(314) 454-8181

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3023 North Ballas Road Suite 450, Missouri Baptist Medical Center Building D
Saint Louis, MO 63131

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4901 Forest Park Avenue Floor: 7, Suite: 710
Saint Louis, MO 63108

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4901 Forest Park Avenue Suite 710
Saint Louis, MO 63108

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Noteworthy Medicare Patient Procedures Performed by Dr. Katherine Mae Massa, MD in 2023

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

Top 5%

By Volume:

non-obstetric transvaginal ultrasound

pelvic ultrasound

By Affordability:

non-obstetric transvaginal ultrasound

transabdominal ultrasound

transvaginal ultrasound

women's imaging

In 2023, among providers in related specialties within Missouri, Dr. Katherine Mae Massa, MD performed more non-obstetric transvaginal ultrasound, and pelvic ultrasound procedures for Medicare patients than 95% of them and she also had a list price for non-obstetric transvaginal ultrasound, transabdominal ultrasound, transvaginal ultrasound, and women's imaging that was lower than the list prices billed to Medicare by 95% of them. 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

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine Mae Massa, MD.

**Gender**
Male	0
Female	21

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2020

The most common conditions of Medicare patients that Dr. Katherine Mae Massa, MD treated during 2020 were depression.

Hypertension	0
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	57
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Katherine Mae Massa, MD treated as a perinatologist in O'Fallon, MO during 2021 were ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Katherine Mae Massa, MD for Medicare patients.

pelvic imaging	83
ultrasound (sonogram)	83
women's imaging	42

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine Mae Massa, MD.

**Gender**
Male	0
Female	68

**Ethnicity**
Non-Hispanic White	41
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	25
From 75 to 84	0
85 and over	0
Less than 65	32

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2021

The most common conditions of Medicare patients that Dr. Katherine Mae Massa, MD treated during 2021 were hypertension, depression, high cholesterol and chronic kidney disease.

Hypertension	49
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	0
Depression	37
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Katherine Mae Massa, MD treated as a perinatologist in O'Fallon, MO during 2022 were ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Katherine Mae Massa, MD for Medicare patients.

pelvic imaging	65
ultrasound (sonogram)	65
women's imaging	35

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine Mae Massa, MD.

**Gender**
Male	0
Female	53

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

**Age**
From 65 to 74	19
From 75 to 84	0
85 and over	0
Less than 65	19

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2022

The most common conditions of Medicare patients that Dr. Katherine Mae Massa, MD treated during 2022 were high cholesterol, hypertension, depression and asthma.

Hypertension	55
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	0
Depression	23
Chronic Kidney Disease	0
Asthma	21
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Katherine Mae Massa, MD treated as a perinatologist in O'Fallon, MO during 2023 were ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. Katherine Mae Massa, MD for Medicare patients.

pelvic imaging	79
ultrasound (sonogram)	79
women's imaging	40

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine Mae Massa, MD.

**Gender**
Male	0
Female	67

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	20
From 75 to 84	0
85 and over	0
Less than 65	36

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2023

The most common conditions of Medicare patients that Dr. Katherine Mae Massa, MD treated during 2023 were hypertension, high cholesterol, depression and asthma.

Hypertension	55
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	0
Depression	42
Chronic Kidney Disease	0
Asthma	27
Osteoperosis	19
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2020 - 2023

Volume of procedures performed by Dr. Katherine Mae Massa, MD for Medicare patients.

The highest averages for the top procedures that Dr. Katherine Mae Massa, MD treated as a perinatologist in O'Fallon, MO were ultrasound (sonogram), pelvic imaging and women's imaging.

pelvic imaging	75
ultrasound (sonogram)	75
women's imaging	39

Average Medicare Patient Data From 2020 - 2023

Information about Medicare patients treated by Dr. Katherine Mae Massa, MD.

**Gender**
Female	52
Male	0

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	30
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	0
75 to 84	0
Less than 65	21
65 to 74	16

Average of Total of Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD From 2020 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Katherine Mae Massa, MD treated were depression, hypertension, high cholesterol and asthma.

Hypertension	39
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	0
Depression	39
Chronic Kidney Disease	4
Asthma	12
Osteoporosis	4
Heart Failure	4
Chronic Obstructive Pulmonary Disease	0
Diabetes	6
Atrial Fibrillation	0
Dementia	0
Cancer	4

Education & Training

Dr. Katherine Mae Massa, MD graduated from Temple University School of Medicine in 2013. She completed residency at St. Louis University (SLU) Affiliated Hospitals. She is certified by the Board Certification: Gynecology and has a state license in Missouri.

Medical School: Temple University School of Medicine (2013)

Residency: St. Louis University (SLU) Affiliated Hospitals

Board Certification: Board Certification: Gynecology

Licensed In: Missouri

Affiliations & Hospitals

Dr. Katherine Mae Massa, MD is associated with these hospitals and organizations:

WashU Medicine

Progress West Hospital

Missouri Baptist Medical Center

BJC HealthCare

Barnes-Jewish Hospital

Washington University in St. Louis (WUSTL)

WashU Medicine

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. Katherine Mae Massa, MD appears to accept the following insurance providers: CIGNA Flexcare, MultiPlan, MHBP, United Healthcare Select Plus, United Healthcare Select, United Healthcare PPO, United Healthcare POS, Great-West Healthcare Open Access, United Healthcare EPO, United Healthcare Choice Plus, United Healthcare Choice, Blue Choice, Aetna QPOS, Great-West Healthcare POS, Great-West Healthcare PPO, Health Alliance HMO, Aetna Open Access HMO, Great-West Healthcare HMO, Rockport Healthcare Group, Hannibal Regional PHO, Aetna Medicare HMO, TRICARE, Decatur Memorial Hospital, Coventry, Anthem, Best Doctors, Aetna Managed Choice POS, Aetna Select, Aetna Choice POS, Aetna HMO, CIGNA Open Access POS, Aetna US Access, CIGNA Open Access Plus HMO, Aetna National Advantage Program, Coventry HMO, CIGNA Network, CIGNA PPO, MO HealthNet, CIGNA POS, CIGNA HMO, CorVel, CIGNA EPO, Aetna Medicare PPO, Aetna Open Access Managed Choice, Aetna Open Access Elect Choice, Aetna Choice POS II, AARP, Medicare Advantage, TriWest, Blue Cross Blue Shield Missouri - Regular or Traditional, CoxHealth, Coventry PPO, Coventry National Network PPO, USA Managed Care Organization, Health Alliance POS, Health Alliance PPO, United Healthcare, United Healthcare Navigate, Medicare, Medicaid, Quality Health Management, Humana, Cigna, First Health, HealthLink PPO, Beech Street, HealthLink POS, HealthLink Open Access, HealthLink HMO, Aetna Elect Choice, HFN, United Healthcare Community Plan (AmeriChoice), Community Partners Health Plans, CIGNA Open Access Plus POS, Blue Cross Blue Shield of Illinois, CIGNA Network Open Access, CIGNA PPO Plus, Private Healthcare Systems (PHCS), Care Management Resources (CMR), Aetna Affordable Health Choice PPO, Advantra Option 1 HMO/POS (Aetna Medicare), Union Pacific Railroad Employee Health System, Freedom Plus PPO-Missouri (Aetna Medicare), Aetna CVS Health (MO Marketplace Exchange), Freedom PPO-Missouri (Aetna Medicare), Aetna Open Choice (PPO), Aetna Medicare Open Access POS, Health Alliance Medicare POS, Kansas Advantra Freedom PPO (Aetna Medicare), VA HealthCare Choice Program, BJC Center of Excellence - Consociate Health, Verify Insurance Acceptance With Practice, Illinois Department of Public Aid (IDPA/HFS), Advantra Silver HMO (Aetna Medicare), Advantra PPO (Aetna Medicare), Essence Advantage HMO, Health Alliance (IL Marketplace Exchange), HealthScope Benefits, Inn (Orscheln Industries Health Plan), Gold Advantage (Aetna Medicare), Aetna Health Network, Essence Advantage Select HMO, Advantra Complete PPO Illinois (Aetna Medicare), Aetna Health Network Option, BJC HealthSolutions, Aetna Medicare Open Access HMO, Health Alliance Medicare HMO, Advantra Option 2 HMO (Aetna Medicare), Essence Advantage Plus HMO and Gold Dual Core HMO Missouri (Aetna Medicare).

Insurance Accepted by Provider includes:

According to our sources, Dr. Katherine Mae Massa, MD accepts the following insurance providers:

CIGNA Flexcare

MultiPlan

MHBP

United Healthcare Select Plus

United Healthcare Select

United Healthcare PPO

United Healthcare POS

Great-West Healthcare Open Access

United Healthcare EPO

United Healthcare Choice Plus

United Healthcare Choice

Blue Choice

Aetna QPOS

Great-West Healthcare POS

Great-West Healthcare PPO

Health Alliance HMO

Aetna Open Access HMO

Great-West Healthcare HMO

Rockport Healthcare Group

Hannibal Regional PHO

Aetna Medicare HMO

TRICARE

Decatur Memorial Hospital

Coventry

Anthem

Best Doctors

Aetna Managed Choice POS

Aetna Select

Aetna Choice POS

Aetna HMO

CIGNA Open Access POS

Aetna US Access

CIGNA Open Access Plus HMO

Aetna National Advantage Program

Coventry HMO

CIGNA Network

CIGNA PPO

MO HealthNet

CIGNA POS

CIGNA HMO

CorVel

CIGNA EPO

Aetna Medicare PPO

Aetna Open Access Managed Choice

Aetna Open Access Elect Choice

Aetna Choice POS II

AARP

Medicare Advantage

TriWest

Blue Cross Blue Shield Missouri - Regular or Traditional

CoxHealth

Coventry PPO

Coventry National Network PPO

USA Managed Care Organization

Health Alliance POS

Health Alliance PPO

United Healthcare

United Healthcare Navigate

Medicare

Medicaid

Quality Health Management

Humana

Cigna

First Health

HealthLink PPO

Beech Street

HealthLink POS

HealthLink Open Access

HealthLink HMO

Aetna Elect Choice

HFN

United Healthcare Community Plan (AmeriChoice)

Community Partners Health Plans

CIGNA Open Access Plus POS

Blue Cross Blue Shield of Illinois

CIGNA Network Open Access

CIGNA PPO Plus

Private Healthcare Systems (PHCS)

Care Management Resources (CMR)

Aetna Affordable Health Choice PPO

Advantra Option 1 HMO/POS (Aetna Medicare)

Union Pacific Railroad Employee Health System

Freedom Plus PPO-Missouri (Aetna Medicare)

Aetna CVS Health (MO Marketplace Exchange)

Freedom PPO-Missouri (Aetna Medicare)

Aetna Open Choice (PPO)

Aetna Medicare Open Access POS

Health Alliance Medicare POS

Kansas Advantra Freedom PPO (Aetna Medicare)

VA HealthCare Choice Program

BJC Center of Excellence - Consociate Health

Verify Insurance Acceptance With Practice

Illinois Department of Public Aid (IDPA/HFS)

Advantra Silver HMO (Aetna Medicare)

Advantra PPO (Aetna Medicare)

Essence Advantage HMO

Health Alliance (IL Marketplace Exchange)

HealthScope Benefits, Inn (Orscheln Industries Health Plan)

Gold Advantage (Aetna Medicare)

Aetna Health Network

Essence Advantage Select HMO

Advantra Complete PPO Illinois (Aetna Medicare)

Aetna Health Network Option

BJC HealthSolutions

Aetna Medicare Open Access HMO

Health Alliance Medicare HMO

Advantra Option 2 HMO (Aetna Medicare)

Essence Advantage Plus HMO

Gold Dual Core HMO Missouri (Aetna Medicare)

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General Payments

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

**Payments by Company**
SANOFI-AVENTIS U.S. LLC	$199 SEPRAFILM ADHESION BARRIER $199
revo Biologics, Inc.	$27 ATryn $27
Ethicon US, LLC	$19 SURGIFLO Hemostatic Matrix Family of Products $19

**Types of Payments**
Education	$199
Food and Beverage	$46

Biography

Dr. Katherine Massa's medical specialty is maternal and fetal medicine. She attended Temple University School of Medicine and then went on to complete her residency at a hospital affiliated with St. Louis University (SLU). In her practice, she is particularly interested in prenatal diagnosis. Anthem, Blue California, and Coventry appears to be the insurance carriers that Dr. Massa takes. Dr. Massa is professionally affiliated with Missouri Baptist Medical Center, Progress West Hospital, and WashU Medicine. According to BJC HealthCare, she is currently accepting new patients at her office in Saint Louis, MO.

Select Year:

Dr. Katherine Mae Massa, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Katherine Mae Massa, MD in 2023

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2020 - 2023

Average Medicare Patient Data From 2020 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Katherine Mae Massa, MD From 2020 - 2023

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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