Dr. Gary Benn Birnbaum, MD
- Medicare services, 2024
- 1,811
- Medicare patients, 2024
- 123
- Part D claims, 2024
- 977
- Hospital affiliations
- 1
- Industry payments
- $4,098
- Practice address
- 751 San Pedro Terrace Road, Pacifica, CA 94044
- Practice phone
- Call (650) 359-4800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Linda Mar Rehabilitation
Skilled Nursing Facility · Pacifica, California
Find Dr. Birnbaum'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. Gary Benn Birnbaum is a family medicine physician in Pacifica, California
Dr. Birnbaum practices at Linda Mar Rehabilitation in Pacifica, California.
Dr. Birnbaum's NPI, 1972685972, was assigned on October 19, 2006. Dr. Birnbaum graduated from New York University School of Medicine in 1976. Dr. Birnbaum's California license number on file is G36641.
- NPI
- 1972685972NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507928926
- NPI enumeration date
- October 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 359-4800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary Benn Birnbaum practices at Linda Mar Rehabilitation in Pacifica, California
Dr. Birnbaum's primary practice is Linda Mar Rehabilitation, at 751 San Pedro Terrace Road, Pacifica, CA 94044 in San Mateo County. The practice phone is (650) 359-4800.
- Linda Mar Rehabilitation751 San Pedro Terrace Road, Pacifica, CA 94044 · San Mateo CountyPhone(650) 359-4800
Source: Dmand AI Affiliation Data
Dr. Gary Benn Birnbaum is affiliated with 3 sites of care and 1 medical group
Dr. Birnbaum's primary practice is Linda Mar Rehabilitation in Pacifica, California. Dr. Birnbaum is also affiliated with California Pacific Medical Center Mission Bernal Campus & Orthopedic Institute. The medical group on file is Vibra Healthcare. Dmand AI also links Dr. Birnbaum to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary Benn Birnbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Birnbaum practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Linda Mar Rehabilitation | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary Benn Birnbaum is one of 15,680 family medicine physicians in California
Family medicine is Dr. Birnbaum's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Birnbaum is board certified in family medicine by the American Board of Family Medicine. Dr. Birnbaum has a license on file in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists aneurysm, arthritis, asthma, cerebrovascular disease, chronic diabetes, chronic hypertension, chronic obstructive pulmonary disease (COPD) and chronic respiratory failure among the conditions Dr. Birnbaum treats.
Family medicine physicians near Dr. Birnbaum
Counts of family medicine physicians 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. Gary Benn Birnbaum billed Medicare for 1,811 services in 2024
CMS data shows 1,811 Medicare services from Dr. Birnbaum across 5 procedure codes in 2024, for 123 Medicare patients. Medicare paid $131,986 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Birnbaum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,7462024: 1,8114%
Dr. Birnbaum compared with the California median for family medicine physicians, 2024
- Dr. Birnbaum
- California median
- Medicare services
- 1,811vs 2467.4 times
- Medicare patients
- 123vs 118Close to median
- Part D claims
- 605vs 83327% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Birnbaum'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. Birnbaum and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary Benn Birnbaum treated 123 Medicare patients in 2024, average age 79
CMS counts 123 Medicare patients who saw Dr. Birnbaum in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.36, 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. Birnbaum's median patient age at 79, with 42% women.
Dr. Birnbaum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Birnbaum's Medicare patients by sex, 2024
- Women6049%
- Men6351%
Chronic conditions among Dr. Birnbaum's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes53%
- Arthritis51%
- Chronic kidney disease46%
- Mood disorders43%
- Heart failure41%
- Depression39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Birnbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women42%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary Benn Birnbaum wrote 977 Medicare Part D claims in 2024
In 2024, Dr. Birnbaum wrote 977 Medicare Part D claims for 79 patients. 79% of them were for generic drugs. CMS names the drug for 605 of them, across 31 drugs with 11 or more claims each, at $60,885 in total drug cost. In 2023, CMS named 335 claims across 22 drugs.
Dr. Birnbaum's Part D claims by kind of drug, 2024
- Generic776 claims79%
- Brand-name and other201 claims21%
Dr. Birnbaum'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. Birnbaum's Part D claims, 2024
- Opioids5%44 of 977 claims
- Antibiotics5%47 of 977 claims
- Antipsychotics, patients 65 and over2%17 of 977 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: 3352024: 60581%
Drugs named by CMS: 31 in 2024, 22 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
How Dr. Gary Benn Birnbaum takes part in Medicare
Dr. Birnbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gary Benn Birnbaum received $4,098 in industry payments from 2016 to 2025
CMS Open Payments shows 228 general payments to Dr. Birnbaum from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $474.
General payments to Dr. Birnbaum by program year, 2016 to 2025
General payments to Dr. Birnbaum by kind, 2016 to 2025
- Food and beverage$4,090100%
- Education$80%
Companies that paid Dr. Birnbaum 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. Gary Benn Birnbaum has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Birnbaum, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Birnbaum
- 2013
- CMS Stage 1 EHR
- 2000
- Town & Country Magazine: Top Doctors
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Gary Benn Birnbaum graduated from New York University School of Medicine
Dr. Birnbaum graduated from New York University School of Medicine in 1976.
- Medical school
- Board certified in family medicine
- Board certified in geriatric medicine
Source: Dmand AI Professional Profile Data
Dr. Gary Benn Birnbaum accepts plans from 5 insurance carriers
Dr. Birnbaum is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Birnbaum accepts, by number of carriers
- Medicare5
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gary Benn Birnbaum'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Gary Benn Birnbaum
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. Gary Benn Birnbaum's NPI number?
Dr. Gary Benn Birnbaum's NPI number is 1972685972. It was assigned on October 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary Benn Birnbaum?
Dr. Gary Benn Birnbaum is a family medicine physician in Pacifica, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Gary Benn Birnbaum practice?
Dr. Birnbaum practices at 751 San Pedro Terrace Road, Pacifica, CA 94044. Dr. Birnbaum's primary practice is Linda Mar Rehabilitation in Pacifica, California. Dmand AI also links Dr. Birnbaum to 1 physician office.
What is Dr. Gary Benn Birnbaum's office phone number?
The practice phone on file for Dr. Birnbaum is (650) 359-4800.
What is Dr. Gary Benn Birnbaum's medical license number?
Dr. Birnbaum's California license number on file is G36641.
Which hospitals is Dr. Gary Benn Birnbaum affiliated with?
Dr. Birnbaum is affiliated with California Pacific Medical Center Mission Bernal Campus & Orthopedic Institute.
What medical group is Dr. Gary Benn Birnbaum part of?
Dr. Birnbaum is linked to Vibra Healthcare.
Does Dr. Gary Benn Birnbaum accept Medicare?
Yes. CMS data shows Dr. Birnbaum billed Medicare for 1,811 services in 2024, and Dr. Birnbaum accepts Medicare assignment.
How many Medicare patients does Dr. Gary Benn Birnbaum see?
CMS counts 123 Medicare patients who saw Dr. Birnbaum in 2024, with an average age of 79.
Is Dr. Gary Benn Birnbaum board certified?
Yes. Dr. Birnbaum is board certified in family medicine by the American Board of Family Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Gary Benn Birnbaum bill to Medicare?
In 2024, Dr. Birnbaum's most billed Medicare services were nursing facility care (99308), nursing facility care (99309) and care management and other visits (99497).
Where did Dr. Gary Benn Birnbaum go to medical school?
Dr. Birnbaum graduated from New York University School of Medicine in 1976.
What drugs does Dr. Gary Benn Birnbaum prescribe most?
In 2024 Medicare Part D data, Dr. Birnbaum's most prescribed drugs by claims were Eliquis, Myrbetriq and Hydrocodone-Acetaminophen.
Has Dr. Gary Benn Birnbaum received payments from drug or device companies?
CMS Open Payments shows $4,098 in general payments to Dr. Birnbaum from 30 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Gary Benn Birnbaum been practicing?
Dr. Birnbaum graduated from medical school in 1976, 50 years ago.
What insurance does Dr. Gary Benn Birnbaum accept?
Dr. Birnbaum is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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