Gregory Paul Rosa, MD
Family Medicine Physician · Sebastopol, CA
Gregory Paul Rosa, MD is a family medicine physician with a practice address in Sebastopol, California, and NPI 1902861453, issued on Apr 19, 2006. Check the license (California C35981, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory Paul Rosa
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C35981 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6800 Palm Ave, Sebastopol, CA 95472
- Phone
- (707) 823-7616
- Enumerated
- Apr 19, 2006
- Record last updated
- Jun 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040722000662); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1973
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 6800 Palm Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Paul Rosa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C35981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average family medicine physician in 2024
2,845 Medicare Part D claims for 350 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 77 claims were for opioids.
Most prescribed
- Atorvastatin Calcium207 claims
- Levothyroxine Sodium189 claims
- Amlodipine Besylate111 claims
- Trazodone Hcl87 claims
- Lisinopril86 claims
- Indapamide84 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.
Bills Medicare through one group practice
- Providence Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Paul Rosa among 17,133 family medicine physician records in California
Gregory Paul Rosa, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1973 · median 2005 among the 10,652 with a school on file
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 family medicine physician records list a practice address in Sebastopol
They are 27 of the 550 NPPES records with a practice address in Sebastopol, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Sebastopol → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kathleen Andersen, M.D.Sebastopol, CA 954721679570899
- Hope Becklund, MDSebastopol, CA 954721477515435
- Jason Cunningham, DOSebastopol, CA 954721811990237
- Nancy Davidson, M.D.Sebastopol, CA 954721417959453
- Patricia Drier, M.D.Sebastopol, CA 954721487651600
- Gerald Eliaser, M.D.Sebastopol, CA 954721558474270
- David Fichman, MDSebastopol, CA 954721558359885
- Michael Holmes, MDSebastopol, CA 954721982708103
Common questions
What is Gregory Paul Rosa, MD's NPI number?
Gregory Paul Rosa, MD's National Provider Identifier (NPI) is 1902861453, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Paul Rosa, MD located?
The NPPES record lists a practice address at 6800 Palm Ave, Sebastopol, CA, 95472. Phone: (707) 823-7616. Providers update this record themselves, so call before visiting.
How can I verify Gregory Paul Rosa, MD's license?
NPPES lists California license number C35981, 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 Gregory Paul Rosa, MD prescribe under Medicare Part D?
In 2024, Gregory Paul Rosa, MD had 2,845 Medicare Part D claims for 350 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.