Robert Doris
Internal Medicine Physician · Larkspur, CA
Robert Doris is an internal medicine physician with a practice address in Larkspur, California, and NPI 1528647096, issued on Apr 3, 2021. Check the license (California A196909, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Doris
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A196909 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Larkspur Landing Cir Ste 10, Larkspur, CA 94939
- Phone
- (415) 924-1214
- Enumerated
- Apr 3, 2021
- Record last updated
- Jul 11, 2025
- Fax
- (415) 924-1375
- Medicare enrollment
- Enrolled (PECOS I20240816001175); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1100 Larkspur Landing Cir Ste 10
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Injil Abubakar, MDFamily Medicine Physician1013095041
- Saba Bagewadi, M.D.Pediatrics Physician1588059059
- Anjuli Brighton, MDPulmonary Disease Physician1407110588
- Grace Fong, D.O.Family Medicine Physician1952559585
- Maria Garcia-Ball, RNFamily Nurse Practitioner1972987519
- John Graham, M.D.Family Medicine Physician1306836366
Verify Robert Doris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A196909Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average internal medicine physician in 2024
436 Medicare Part D claims for 178 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium28 claims
- Gabapentin25 claims
- Lisinopril19 claims
- Amlodipine Besylate15 claims
- Trulicity13 claims
- Levothyroxine Sodium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $20.52
1 payment: food and beverage; the largest payer was Csl Behring. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Regents Univ OF California UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
7 internal medicine physician records list a practice address in Larkspur
They are 7 of the 291 NPPES records with a practice address in Larkspur, and 17,696 internal medicine physician records in California.
All 7 in Larkspur → All 17,696 in California → Every provider in Larkspur →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Robert Doris's NPI number?
Robert Doris's National Provider Identifier (NPI) is 1528647096, issued on Apr 3, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Robert Doris located?
The NPPES record lists a practice address at 1100 Larkspur Landing Cir Ste 10, Larkspur, CA, 94939. Phone: (415) 924-1214. Providers update this record themselves, so call before visiting.
How can I verify Robert Doris's license?
NPPES lists California license number A196909, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Doris prescribe under Medicare Part D?
In 2024, Robert Doris had 436 Medicare Part D claims for 178 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.