Dr. Katherine Mae Massa, MD
- Medicare services, 2024
- 37
- Medicare patients, 2024
- 28
- Part D claims, 2017
- 13
- MIPS score, 2024
- 88
- Hospital affiliations
- 2
- Practice address
- 3023 N Ballas Rd, Saint Louis, MO 63131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bjc Medical Group Breast Care Consultants - HOPD
Acute Care Hospital outpatient department · Saint Louis, Missouri
Find Dr. Massa's professional email, personal email and mobile number
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Dr. Katherine Mae Massa is a maternal-fetal medicine specialist in Saint Louis, Missouri
Dr. Massa practices at Bjc Medical Group Breast Care Consultants - HOPD in Saint Louis, Missouri.
Dr. Massa's NPI, 1205272341, was assigned on May 16, 2013. Dr. Massa graduated from Temple University School of Medicine in 2013. Dr. Massa holds Missouri license 2017013416.
- NPI
- 1205272341NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375846140
- NPI enumeration date
- May 16, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Mae Massa practices at Bjc Medical Group Breast Care Consultants - HOPD in Saint Louis, Missouri
Dr. Massa's primary practice is Bjc Medical Group Breast Care Consultants - HOPD, at 3023 N Ballas Rd, Saint Louis, MO 63131.
- Bjc Medical Group Breast Care Consultants - HOPD3023 N Ballas Rd, Saint Louis, MO 63131
Source: Dmand AI Affiliation Data
Dr. Katherine Mae Massa is affiliated with 6 sites of care and 3 medical groups
Dr. Massa's primary practice is Bjc Medical Group Breast Care Consultants - HOPD in Saint Louis, Missouri. Dr. Massa is also affiliated with Barnes-Jewish Hospital. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Massa to 1 more hospital, 3 group practices and clinics and 2 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Katherine Mae Massa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Massa practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bjc Medical Group Breast Care Consultants - HOPD | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Mae Massa is one of 73 maternal-fetal medicine specialists in Missouri
Maternal and fetal medicine is Dr. Massa's primary specialty in the NPI Registry, under taxonomy code 207VM0101X. Dr. Massa is licensed in Missouri.
Specialties and state licenses
- Maternal and fetal medicine, MissouriPrimary
Maternal-fetal medicine specialists near Dr. Massa
Counts of maternal-fetal medicine specialists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Katherine Mae Massa billed Medicare for 37 services in 2024
CMS data shows 37 Medicare services from Dr. Massa across 2 procedure codes in 2024, for 28 Medicare patients. Medicare paid $921 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Massa's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 792024: 3753%
Dr. Massa compared with the Missouri median for maternal-fetal medicine specialists, 2024
- Dr. Massa
- Missouri median
- Medicare services
- 37vs 349% above
- Medicare patients
- 28vs 1947% above
- Part D claims
- 13vs 13Close to median
Medians across 32 maternal-fetal medicine specialists in Missouri with Dmand AI profiles that report each measure.
Dr. Massa's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Massa and other maternal-fetal medicine specialists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Mae Massa treated 28 Medicare patients in 2024, average age 66
CMS counts 28 Medicare patients who saw Dr. Massa in 2024. The largest group is 65 to 74, with 14 patients. 71% of them have high cholesterol, and 57% have high blood pressure. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Massa's median patient age at 36, with 100% women.
Dr. Massa's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Massa's Medicare patients, 2024
- High cholesterol71%
- High blood pressure57%
- Arthritis39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Massa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Mae Massa wrote 13 Medicare Part D claims in 2017
In 2017, Dr. Massa wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $132 in total drug cost.
Dr. Massa's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Katherine Mae Massa scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Massa for performance year 2024, reported as part of a group. Dr. Massa accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Massa's MIPS scores, performance year 2024
- 88of 100Final score
- 76.1of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Katherine Mae Massa received $65 in industry payments from 2016 to 2024
CMS Open Payments shows 3 general payments to Dr. Massa from 3 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. revo Biologics, Inc. paid the most, $27.
General payments to Dr. Massa by program year, 2016 to 2024
Companies that paid Dr. Massa the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Mae Massa graduated from Temple University School of Medicine
Dr. Massa graduated from Temple University School of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Mae Massa's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Katherine Mae Massa
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Katherine Mae Massa's NPI number?
Dr. Katherine Mae Massa's NPI number is 1205272341. It was assigned on May 16, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Mae Massa?
Dr. Katherine Mae Massa is a maternal-fetal medicine specialist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Maternal & Fetal Medicine Physician (taxonomy code 207VM0101X).
Where does Dr. Katherine Mae Massa practice?
Dr. Massa practices at 3023 N Ballas Rd, Saint Louis, MO 63131. Dr. Massa's primary practice is Bjc Medical Group Breast Care Consultants - HOPD in Saint Louis, Missouri. Dmand AI also links Dr. Massa to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Dr. Katherine Mae Massa's medical license number?
Dr. Massa holds Missouri license 2017013416.
Which hospitals is Dr. Katherine Mae Massa affiliated with?
Dr. Massa is affiliated with Barnes-Jewish Hospital. Dmand AI links Dr. Massa to 1 more hospital.
What medical group is Dr. Katherine Mae Massa part of?
Dr. Massa is linked to WashU Medicine Psychiatry. Dmand AI links Dr. Massa to 2 more medical groups.
Does Dr. Katherine Mae Massa accept Medicare?
Yes. CMS data shows Dr. Massa billed Medicare for 37 services in 2024, and Dr. Massa accepts Medicare assignment.
What is Dr. Katherine Mae Massa's MIPS score?
Dr. Massa's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.
How many Medicare patients does Dr. Katherine Mae Massa see?
CMS counts 28 Medicare patients who saw Dr. Massa in 2024, with an average age of 66.
What services does Dr. Katherine Mae Massa bill to Medicare?
In 2024, Dr. Massa's most billed Medicare services were ultrasound (76830) and ultrasound (76856).
Show 4 more questionsShow fewer questions
Where did Dr. Katherine Mae Massa go to medical school?
Dr. Massa graduated from Temple University School of Medicine in 2013.
What drugs does Dr. Katherine Mae Massa prescribe most?
In 2017 Medicare Part D data, Dr. Massa's most prescribed drugs by claims were Polyethylene Glycol 3350.
Has Dr. Katherine Mae Massa received payments from drug or device companies?
CMS Open Payments shows $65 in general payments to Dr. Massa from 3 companies from 2016 to 2024. The largest total came from revo Biologics, Inc.
How long has Dr. Katherine Mae Massa been practicing?
Dr. Massa graduated from medical school in 2013, 13 years ago.
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