Peggy Newcomer, DO
Family Medicine Physician · Oakland, CA
Peggy Newcomer, DO is a family medicine physician with a practice address in Oakland, California, and NPI 1417924531, issued on Mar 7, 2006. Check the license (California 20A7846, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peggy Newcomer
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A7846 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3850 Grand Ave, Oakland, CA 94610
- Phone
- (888) 663-6331
- Enumerated
- Mar 7, 2006
- Record last updated
- Mar 17, 2025
- Fax
- (415) 252-7176
- Medicare enrollment
- Enrolled (PECOS I20050331001178); accepts Medicare assignment
- 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 3850 Grand Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maureen Ashiku, NPFamily Nurse Practitioner1437498607
- Scott Berning, FNP-C, RNFamily Nurse Practitioner1427819606
- Maria Bhaijee, M.D.Pediatrics Physician1073838280
- Nicole FernandesNurse Practitioner1558997569
- Jerusalem Makonnen, RN,MSN,FNPNurse Practitioner1972510022
- Jessica Miller, MDFamily Medicine Physician1104168236
Verify Peggy Newcomer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
375 Medicare Part D claims for 63 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Alprazolam24 claims
- Hydrocodone-Acetaminophen17 claims
- Albuterol Sulfate Hfa16 claims
- Lorazepam15 claims
- Losartan Potassium13 claims
- Simvastatin11 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
- One Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peggy Newcomer among 17,133 family medicine physician records in California
Peggy Newcomer, DO 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
- Graduated1997 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Oakland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lindsay Agolia, MDPiedmont, CA 946101831351063
- Natasha Bernard, D.O.Oakland, CA 946101194041350
- Christina Gomez-MiraOakland, CA 946101356734859
- Jessica Miller, MDOakland, CA 946101104168236
- Vicky Valverde-Salas, M.D.Piedmont, CA 946101669551883
- Leticia Aguilera-Ledesma, MDOakland, CA 946111871538637
- Seless Barnes, FNP-COakland, CA 946091407794670
- Lori Beltran, D.O.Oakland, CA 946091053567768
Common questions
What is Peggy Newcomer, DO's NPI number?
Peggy Newcomer, DO's National Provider Identifier (NPI) is 1417924531, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peggy Newcomer, DO located?
The NPPES record lists a practice address at 3850 Grand Ave, Oakland, CA, 94610. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.
How can I verify Peggy Newcomer, DO's license?
NPPES lists California license number 20A7846, 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 Peggy Newcomer, DO prescribe under Medicare Part D?
In 2024, Peggy Newcomer, DO had 375 Medicare Part D claims for 63 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.