Dr. William D. Birenbaum, MD
- Medicare services, 2024
- 2,847
- Medicare patients, 2024
- 393
- Part D claims, 2024
- 14,134
- Hospital affiliations
- 7
- Industry payments
- $8,259
- Practice address
- 3015 N Ballas Rd, Saint Louis, MO 63131
- Practice phone
- Call (314) 996-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Birenbaum'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. William D. Birenbaum is an internist in Saint Louis, Missouri
Dr. Birenbaum practices at Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health.
Dr. Birenbaum's NPI, 1407876550, was assigned on July 20, 2006. Dr. Birenbaum graduated from University of Missouri, Columbia School of Medicine in 1982. Dr. Birenbaum holds Missouri license 36460.
- NPI
- 1407876550NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052479128
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 996-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William D. Birenbaum practices at Missouri Baptist Medical Center in Saint Louis, Missouri
Dr. Birenbaum's primary practice is Missouri Baptist Medical Center, at 3015 N Ballas Rd, Saint Louis, MO 63131 in St. Louis County. The practice phone is (314) 996-5000.
- Missouri Baptist Medical Center3015 N Ballas Rd, Saint Louis, MO 63131 · St. Louis CountyPhone(314) 996-5000
Source: Dmand AI Affiliation Data
Dr. William D. Birenbaum is affiliated with 12 sites of care and 2 medical groups
Dr. Birenbaum's primary practice is Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health. Dr. Birenbaum is also affiliated with Barnes-Jewish Hospital. The medical group on file is BJC Medical Group. Dmand AI also links Dr. Birenbaum to 5 more hospitals, 2 group practices and clinics, 2 home health agencies, 1 hospice 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. William D. Birenbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Birenbaum practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Missouri Baptist Medical Center | Available with a free account |
| +11 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across BJC Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William D. Birenbaum is one of 2,114 internists in Missouri
Internal medicine is Dr. Birenbaum's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Birenbaum is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Birenbaum
Counts of internists 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. William D. Birenbaum billed Medicare for 2,847 services in 2024
CMS data shows 2,847 Medicare services from Dr. Birenbaum across 19 procedure codes in 2024, for 393 Medicare patients. Medicare paid $160,232 for them.
Dr. Birenbaum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,5092024: 1,33012%
- Other services
- 2023: 3362024: 717113%
- Surgery
- 2023: 6762024: 6602%
- Tests and treatments
- 2023: 1372024: 1402%
- Lab and pathology
- 2023: 162024: 0100%
Where Dr. Birenbaum's Medicare services took place, 2024
- In an office2,49988%
- In a facility34812%
Dr. Birenbaum compared with the Missouri median for internists, 2024
- Dr. Birenbaum
- Missouri median
- Medicare services
- 2,847vs 5305.4 times
- Medicare patients
- 393vs 21186% above
- Part D claims
- 13,386vs 32541.2 times
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Birenbaum'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.
Need commercial claims for Dr. Birenbaum?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Birenbaum and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William D. Birenbaum treated 393 Medicare patients in 2024, average age 77
CMS counts 393 Medicare patients who saw Dr. Birenbaum in 2024. The largest group is 65 to 74, with 157 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Birenbaum's median patient age at 74, with 42% women.
Dr. Birenbaum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Birenbaum's Medicare patients by sex, 2024
- Women19048%
- Men20352%
Chronic conditions among Dr. Birenbaum's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis57%
- Atrial fibrillation25%
- Ischemic heart disease24%
- Mood disorders23%
- Depression22%
- Cancer21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Birenbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women42%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William D. Birenbaum wrote 14,134 Medicare Part D claims in 2024
In 2024, Dr. Birenbaum wrote 14,134 Medicare Part D claims for 815 patients. 89% of them were for generic drugs. CMS names the drug for 13,386 of them, across 163 drugs with 11 or more claims each, at $816,163 in total drug cost. In 2023, CMS named 12,953 claims across 160 drugs.
Dr. Birenbaum's Part D claims by kind of drug, 2024
- Generic12,591 claims89%
- Brand-name1,468 claims10%
- Other75 claims1%
Dr. Birenbaum's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Birenbaum's Part D claims, 2024
- Opioids5%660 of 14,134 claims
- Antibiotics1%202 of 14,134 claims
- Antipsychotics, patients 65 and over1%72 of 14,134 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 12,9532024: 13,3863%
Drugs named by CMS: 163 in 2024, 160 in 2023.
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
Dr. William D. Birenbaum offers telehealth to Medicare patients
Dr. Birenbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Birenbaum as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. William D. Birenbaum received $8,259 in industry payments from 2016 to 2025
CMS Open Payments shows 591 general payments to Dr. Birenbaum from 40 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $974.
General payments to Dr. Birenbaum by program year, 2016 to 2025
General payments to Dr. Birenbaum by kind, 2016 to 2025
- Food and beverage$8,236100%
- Education$230%
Companies that paid Dr. Birenbaum the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William D. Birenbaum graduated from University of Missouri, Columbia School of Medicine
Dr. Birenbaum graduated from University of Missouri, Columbia School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William D. Birenbaum'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 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. William D. Birenbaum
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. William D. Birenbaum's NPI number?
Dr. William D. Birenbaum's NPI number is 1407876550. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William D. Birenbaum?
Dr. William D. Birenbaum is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William D. Birenbaum practice?
Dr. Birenbaum practices at 3015 N Ballas Rd, Saint Louis, MO 63131. Dr. Birenbaum's primary practice is Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Birenbaum to 5 hospitals, 2 group practices and clinics, 2 home health agencies, 1 hospice and 1 medical group.
What is Dr. William D. Birenbaum's office phone number?
The practice phone on file for Dr. Birenbaum is (314) 996-5000.
What is Dr. William D. Birenbaum's medical license number?
Dr. Birenbaum holds Missouri license 36460.
Which hospitals is Dr. William D. Birenbaum affiliated with?
Dr. Birenbaum practices at Missouri Baptist Medical Center in Saint Louis, Missouri. Dr. Birenbaum is also affiliated with Barnes-Jewish Hospital. Dmand AI links Dr. Birenbaum to 5 more hospitals.
What medical group is Dr. William D. Birenbaum part of?
Dr. Birenbaum is linked to BJC Medical Group. Dmand AI links Dr. Birenbaum to 1 more medical group.
Does Dr. William D. Birenbaum accept Medicare?
Yes. CMS data shows Dr. Birenbaum billed Medicare for 2,847 services in 2024, and Dr. Birenbaum accepts Medicare assignment.
Does Dr. William D. Birenbaum offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Birenbaum as offering telehealth services.
How many Medicare patients does Dr. William D. Birenbaum see?
CMS counts 393 Medicare patients who saw Dr. Birenbaum in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. William D. Birenbaum bill to Medicare?
In 2024, Dr. Birenbaum's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G2211).
Where did Dr. William D. Birenbaum go to medical school?
Dr. Birenbaum graduated from University of Missouri, Columbia School of Medicine in 1982.
What drugs does Dr. William D. Birenbaum prescribe most?
In 2024 Medicare Part D data, Dr. Birenbaum's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. William D. Birenbaum received payments from drug or device companies?
CMS Open Payments shows $8,259 in general payments to Dr. Birenbaum from 40 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. William D. Birenbaum been practicing?
Dr. Birenbaum graduated from medical school in 1982, 44 years ago.
Selling to internal medicine practices?
See internists in Missouri by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card