Dr. Mary Margaret Mullen, MD
- Medicare services, 2024
- 45
- Medicare patients, 2024
- 43
- Part D claims, 2024
- 32
- Hospital affiliations
- 1
- Industry payments
- $736
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mullen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mary Margaret Mullen is a gynecologic oncologist in Saint Louis, Missouri
Dr. Mullen practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Mullen's NPI, 1437563897, was assigned on June 13, 2014. Dr. Mullen graduated from Saint Louis University School of Medicine in 2014. Dr. Mullen holds Missouri license 2018005682.
- NPI
- 1437563897NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173873635
- NPI enumeration date
- June 13, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Margaret Mullen practices at 2 locations in Saint Louis, Missouri
Dr. Mullen's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Mullen also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Mary Margaret Mullen is affiliated with 2 sites of care and 2 medical groups
Dr. Mullen's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Mullen to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary Margaret Mullen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mullen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary Margaret Mullen is one of 37 gynecologic oncologists in Missouri
Gynecologic oncology is Dr. Mullen's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Mullen is licensed in Missouri.
Specialties and state licenses
- Gynecologic oncology, MissouriPrimary
Gynecologic oncologists near Dr. Mullen
Counts of gynecologic oncologists 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. Mary Margaret Mullen billed Medicare for 45 services in 2024
CMS data shows 45 Medicare services from Dr. Mullen across 2 procedure codes in 2024, for 43 Medicare patients. Medicare paid $2,697 for them.
Dr. Mullen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 962024: 4553%
Where Dr. Mullen's Medicare services took place, 2024
- In an office2249%
- In a facility2351%
Dr. Mullen compared with the Missouri median for gynecologic oncologists, 2024
- Dr. Mullen
- Missouri median
- Medicare services
- 45vs 18576% below
- Medicare patients
- 43vs 12064% below
- Part D claims
- 28vs 11776% below
Medians across 37 gynecologic oncologists in Missouri with Dmand AI profiles that report each measure.
Dr. Mullen'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. Mullen and other gynecologic oncologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Margaret Mullen treated 43 Medicare patients in 2024, average age 72
CMS counts 43 Medicare patients who saw Dr. Mullen in 2024. The largest group is 65 to 74, with 20 patients. 70% of them have high blood pressure, and 65% have high cholesterol. Their average risk score is 1.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mullen's median patient age at 66, with 99% women.
Dr. Mullen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Mullen's Medicare patients, 2024
- High blood pressure70%
- High cholesterol65%
- Cancer58%
- Arthritis53%
- Mood disorders47%
- Depression44%
- Anxiety37%
- Chronic kidney disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mullen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary Margaret Mullen wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Mullen wrote 32 Medicare Part D claims for 14 patients. 81% of them were for generic drugs. CMS names the drug for 28 of them, across 2 drugs with 11 or more claims each, at $181 in total drug cost.
Dr. Mullen's Part D claims by kind of drug, 2024
- Generic26 claims81%
- Brand-name and other6 claims19%
Dr. Mullen's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mary Margaret Mullen takes part in Medicare
Dr. Mullen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mary Margaret Mullen received $736 in industry payments from 2018 to 2025
CMS Open Payments shows 11 general payments to Dr. Mullen from 7 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. TESARO, Inc. paid the most, $216.
General payments to Dr. Mullen by program year, 2018 to 2025
Companies that paid Dr. Mullen the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary Margaret Mullen graduated from Saint Louis University School of Medicine
Dr. Mullen graduated from Saint Louis University School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary Margaret Mullen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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)Medicare Part D Prescribers - by Provider (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)Doctors and Clinicians Utilization Data (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. Mary Margaret Mullen
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. Mary Margaret Mullen's NPI number?
Dr. Mary Margaret Mullen's NPI number is 1437563897. It was assigned on June 13, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Margaret Mullen?
Dr. Mary Margaret Mullen is a gynecologic oncologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. Mary Margaret Mullen practice?
Dr. Mullen practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Mullen also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Mullen's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Mullen to 1 group practice or clinic and 1 medical group.
What is Dr. Mary Margaret Mullen's office phone number?
The practice phone on file for Dr. Mullen is (314) 747-3000.
What is Dr. Mary Margaret Mullen's medical license number?
Dr. Mullen holds Missouri license 2018005682.
Which hospitals is Dr. Mary Margaret Mullen affiliated with?
Dr. Mullen practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Mary Margaret Mullen part of?
Dr. Mullen is linked to WashU Medicine Psychiatry. Dmand AI links Dr. Mullen to 1 more medical group.
Does Dr. Mary Margaret Mullen accept Medicare?
Yes. CMS data shows Dr. Mullen billed Medicare for 45 services in 2024, and Dr. Mullen accepts Medicare assignment.
How many Medicare patients does Dr. Mary Margaret Mullen see?
CMS counts 43 Medicare patients who saw Dr. Mullen in 2024, with an average age of 72.
What services does Dr. Mary Margaret Mullen bill to Medicare?
In 2024, Dr. Mullen's most billed Medicare services were hospital inpatient care (99231) and office visit, established patient (99214).
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Where did Dr. Mary Margaret Mullen go to medical school?
Dr. Mullen graduated from Saint Louis University School of Medicine in 2014.
What drugs does Dr. Mary Margaret Mullen prescribe most?
In 2016 Medicare Part D data, Dr. Mullen's most prescribed drugs by claims were Gabapentin and Ibuprofen.
Has Dr. Mary Margaret Mullen received payments from drug or device companies?
CMS Open Payments shows $736 in general payments to Dr. Mullen from 7 companies from 2018 to 2025. The largest total came from TESARO, Inc.
How long has Dr. Mary Margaret Mullen been practicing?
Dr. Mullen graduated from medical school in 2014, 12 years ago.
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