Dr. Robert Michael Zimbroff, MD
- Medicare services, 2024
- 463
- Medicare patients, 2024
- 85
- Part D claims, 2024
- 685
- Publications
- 7
- MIPS score, 2024
- 100
- Practice address
- 500 Parnassus Ave, San Francisco, CA 94143
- Practice phone
- Call (415) 476-1281
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSF Student Health and Counseling Services
School-Based Health Center · San Francisco, California
Find Dr. Zimbroff'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. Robert Michael Zimbroff is a geriatric medicine (internal medicine) physician in San Francisco, California
Dr. Zimbroff practices at UCSF Student Health and Counseling Services in San Francisco, California.
Dr. Zimbroff's NPI, 1659832087, was assigned on March 28, 2019. Dr. Zimbroff graduated from Icahn School Of Medicine At Mount Sinai in 2019. Dr. Zimbroff holds California license A178787.
- NPI
- 1659832087NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214279447
- NPI enumeration date
- March 28, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (415) 476-1281
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Michael Zimbroff practices at UCSF Student Health and Counseling Services in San Francisco, California
Dr. Zimbroff's primary practice is UCSF Student Health and Counseling Services, at 500 Parnassus Ave, San Francisco, CA 94143. The practice phone is (415) 476-1281.
- UCSF Student Health and Counseling Services500 Parnassus Ave, San Francisco, CA 94143Phone(415) 476-1281
Source: Dmand AI Affiliation Data
Dr. Robert Michael Zimbroff is affiliated with 10 sites of care and 3 medical groups
Dr. Zimbroff's primary practice is UCSF Student Health and Counseling Services in San Francisco, California. Dr. Zimbroff is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Zimbroff to 5 more home health agencies, 2 group practices and clinics, 2 medical groups and 1 hospice, 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. Robert Michael Zimbroff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimbroff practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSF Student Health and Counseling Services | Available with a free account |
| +9 more sites and 2 medical groups | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert Michael Zimbroff is one of 497 geriatric medicine (internal medicine) physicians in California
Geriatric medicine is Dr. Zimbroff's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dr. Zimbroff is board certified in geriatric medicine by the American Board of Internal Medicine. Dmand AI has Dr. Zimbroff's licenses on file in 2 states: California and Ohio.
Specialties and state licenses
- Geriatric medicine (internal medicine), CaliforniaPrimary
- Ohio license
Clinical focus
Dmand AI lists acid reflux, arthritis, chronic diabetes, chronic hypertension, depression, enlarged prostate, hiv/aids and insomnia among the conditions Dr. Zimbroff treats.
Geriatric medicine (internal medicine) physicians near Dr. Zimbroff
Counts of geriatric medicine (internal 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. Robert Michael Zimbroff billed Medicare for 463 services in 2024
CMS data shows 463 Medicare services from Dr. Zimbroff across 12 procedure codes in 2024, for 85 Medicare patients. Medicare paid $48,437 for them.
Dr. Zimbroff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1172024: 262124%
- Other services
- 2023: 892024: 14057%
- Tests and treatments
- 2023: 582024: 615%
Where Dr. Zimbroff's Medicare services took place, 2024
- In an office44596%
- In a facility184%
Dr. Zimbroff compared with the California median for geriatric medicine (internal medicine) physicians, 2024
- Dr. Zimbroff
- California median
- Medicare services
- 463vs 4249% above
- Medicare patients
- 85vs 17852% below
- Part D claims
- 293vs 93068% below
Medians across 466 geriatric medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Zimbroff'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. Zimbroff?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zimbroff and other geriatric medicine (internal medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Michael Zimbroff treated 85 Medicare patients in 2024, average age 83
CMS counts 85 Medicare patients who saw Dr. Zimbroff in 2024. The largest group is 85 and over, with 40 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 49% are also on Medicaid. Their average risk score is 2.90, 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. Zimbroff's median patient age at 85, with 64% women.
Dr. Zimbroff's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zimbroff's Medicare patients by sex, 2024
- Women5969%
- Men2631%
Chronic conditions among Dr. Zimbroff's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis60%
- Alzheimer's and dementia56%
- Mood disorders48%
- Chronic kidney disease47%
- Depression44%
- Anxiety38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimbroff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 85
Patient panel by sex, all payers
- Women64%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Michael Zimbroff wrote 685 Medicare Part D claims in 2024
In 2024, Dr. Zimbroff wrote 685 Medicare Part D claims for 70 patients. 83% of them were for generic drugs. CMS names the drug for 293 of them, across 16 drugs with 11 or more claims each, at $5,181 in total drug cost. In 2023, CMS named 46 claims across 4 drugs.
Dr. Zimbroff's Part D claims by kind of drug, 2024
- Generic571 claims83%
- Brand-name and other114 claims17%
Dr. Zimbroff'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. Zimbroff's Part D claims, 2024
- Opioids6%38 of 685 claims
- Antibiotics3%22 of 685 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: 462024: 293537%
Drugs named by CMS: 16 in 2024, 4 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. Robert Michael Zimbroff scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Zimbroff for performance year 2024, reported as part of a group. Dr. Zimbroff accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zimbroff as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Zimbroff's MIPS scores, performance year 2024
- 100of 100Final score
- 95of 100Quality
- 40of 100Improvement Activities
- 81of 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
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. Robert Michael Zimbroff has 7 publications on record
Dmand AI links 7 papers to Dr. Zimbroff, published from 2019 to 2023. 2021 was the busiest year, with 3. The most frequent topics are COVID-19, Home Care Services and Primary Health Care. Dr. Zimbroff has published most often in J Am Geriatr Soc. Dr. Zimbroff's most frequent co-authors are Bruce Allen Leff, MD and Linda V. Decherrie, MD.
Dr. Zimbroff's papers by year, 2019 to 2023
Topics Dr. Zimbroff writes about most
- COVID-19
- Home Care Services
- Primary Health Care
- Delivery of Health Care
Dr. Zimbroff's most frequent co-authors
Recent publications by Dr. Zimbroff
Cleve Clin J Med
J Am Geriatr Soc
J Am Geriatr Soc
See who Dr. Zimbroff researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zimbroff works with, so you can find a warm path to the right geriatric medicine (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Michael Zimbroff graduated from Icahn School Of Medicine At Mount Sinai
Dr. Zimbroff graduated from Icahn School Of Medicine At Mount Sinai in 2019.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Robert Michael Zimbroff accepts plans from 8 insurance carriers
Dr. Zimbroff is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Elevance
- Molina
Plan types Dr. Zimbroff accepts, by number of carriers
- Medicare7
- PPO6
- POS4
- HMO3
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Michael Zimbroff'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Robert Michael Zimbroff
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. Robert Michael Zimbroff's NPI number?
Dr. Robert Michael Zimbroff's NPI number is 1659832087. It was assigned on March 28, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Michael Zimbroff?
Dr. Robert Michael Zimbroff is a geriatric medicine (internal medicine) physician in San Francisco, California. The primary specialty in the NPI Registry is Geriatric Medicine (Internal Medicine) Physician (taxonomy code 207RG0300X).
Where does Dr. Robert Michael Zimbroff practice?
Dr. Zimbroff practices at 500 Parnassus Ave, San Francisco, CA 94143. Dr. Zimbroff's primary practice is UCSF Student Health and Counseling Services in San Francisco, California. Dmand AI also links Dr. Zimbroff to 5 home health agencies, 2 group practices and clinics, 2 medical groups and 1 hospice.
What is Dr. Robert Michael Zimbroff's office phone number?
The practice phone on file for Dr. Zimbroff is (415) 476-1281.
What is Dr. Robert Michael Zimbroff's medical license number?
Dr. Zimbroff holds California license A178787, one of the licenses on file in 2 states.
Which states has Dr. Robert Michael Zimbroff been licensed in?
Dmand AI has state licenses on file for Dr. Zimbroff in California (2022 to 2026) and Ohio (2019 to 2022).
Which hospitals is Dr. Robert Michael Zimbroff affiliated with?
Dr. Zimbroff is affiliated with UCSF Helen Diller Medical Center at Parnassus Heights.
What medical group is Dr. Robert Michael Zimbroff part of?
Dr. Zimbroff is linked to UCSF Pediatrics. Dmand AI links Dr. Zimbroff to 2 more medical groups.
Does Dr. Robert Michael Zimbroff accept Medicare?
Yes. CMS data shows Dr. Zimbroff billed Medicare for 463 services in 2024, and Dr. Zimbroff accepts Medicare assignment.
Does Dr. Robert Michael Zimbroff offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zimbroff as offering telehealth services.
Show 10 more questionsShow fewer questions
What is Dr. Robert Michael Zimbroff's MIPS score?
Dr. Zimbroff's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Robert Michael Zimbroff see?
CMS counts 85 Medicare patients who saw Dr. Zimbroff in 2024, with an average age of 83.
Is Dr. Robert Michael Zimbroff board certified?
Yes. Dr. Zimbroff is board certified in geriatric medicine by the American Board of Internal Medicine.
What services does Dr. Robert Michael Zimbroff bill to Medicare?
In 2024, Dr. Zimbroff's most billed Medicare services were home visit (99350), medicare service (G0318) and medicare service (G0008).
Where did Dr. Robert Michael Zimbroff go to medical school?
Dr. Zimbroff graduated from Icahn School Of Medicine At Mount Sinai in 2019.
What drugs does Dr. Robert Michael Zimbroff prescribe most?
In 2024 Medicare Part D data, Dr. Zimbroff's most prescribed drugs by claims were Amlodipine Besylate, Rosuvastatin Calcium and Atorvastatin Calcium.
How long has Dr. Robert Michael Zimbroff been practicing?
Dr. Zimbroff graduated from medical school in 2019, 7 years ago.
Does Dr. Robert Michael Zimbroff do research?
Dmand AI links 7 publications to Dr. Zimbroff, published from 2019 to 2023.
Who does Dr. Robert Michael Zimbroff publish with?
Dr. Zimbroff's most frequent co-authors are Bruce Allen Leff, MD (2 shared papers) and Linda V. Decherrie, MD (1 shared paper).
What insurance does Dr. Robert Michael Zimbroff accept?
Dr. Zimbroff is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to geriatric medicine practices?
See geriatric medicine (internal medicine) physicians in California 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