Johanna Marie Wolgast, M.D.
Family Medicine Physician · San Mateo, CA
Johanna Marie Wolgast, M.D. is a family medicine physician with a practice address in San Mateo, California, and NPI 1558467522, issued on Sep 16, 2006. Check the license (California A71643, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Johanna Marie Wolgast
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A71643 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 S San Mateo Dr, San Mateo, CA 94401
- Phone
- (650) 696-4427
- Enumerated
- Sep 16, 2006
- Record last updated
- Jun 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151007000320); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 100 S San Mateo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kelly Broderick, M.D.Diagnostic Radiology Physician1609821891
- Joey CheungRadiological Physics Physician1154256493
Verify Johanna Marie Wolgast in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71643Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
277 Medicare Part D claims for 205 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin42 claims
- Doxycycline Hyclate19 claims
- Paxlovid16 claims
- Albuterol Sulfate Hfa15 claims
- Amoxicillin-Clavulanate Potass13 claims
- Naproxen13 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
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johanna Marie Wolgast among 17,133 family medicine physician records in California
Johanna Marie Wolgast, M.D. 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
- Graduated1995 · median 2005 among the 10,652 with a school on file
- Record last updated2020 · 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).
39 family medicine physician records list a practice address in San Mateo
They are 39 of the 3,909 NPPES records with a practice address in San Mateo, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Mateo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Frederick Adler, M.D.San Mateo, CA 944011629030515
- Mandeep Bajwa, M.D.San Mateo, CA 944011891083978
- Lilly Chavez, NPSan Mateo, CA 944011609417567
- Marlon Echaverry, MDSan Mateo, CA 944011992266654
- Jeanine GoreSan Mateo, CA 944011730592148
- Masayasu Kihira, MD PHDSan Mateo, CA 944011851358071
- Ann Marie Miller, MDSan Mateo, CA 944011972655090
- Alexander Moldanado, M.D.San Mateo, CA 944011184617136
Common questions
What is Johanna Marie Wolgast, M.D.'s NPI number?
Johanna Marie Wolgast, M.D.'s National Provider Identifier (NPI) is 1558467522, issued on Sep 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Johanna Marie Wolgast, M.D. located?
The NPPES record lists a practice address at 100 S San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 696-4427. Providers update this record themselves, so call before visiting.
How can I verify Johanna Marie Wolgast, M.D.'s license?
NPPES lists California license number A71643, 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 Johanna Marie Wolgast, M.D. prescribe under Medicare Part D?
In 2024, Johanna Marie Wolgast, M.D. had 277 Medicare Part D claims for 205 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.