Brittany Mariko Denzer, MD
Internal Medicine Physician · San Francisco, CA
Brittany Mariko Denzer, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1942940754, issued on Mar 30, 2022. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brittany Mariko Denzer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DR.0075560 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Ave, San Francisco, CA 94110
- Phone
- (628) 206-8000
- Enumerated
- Mar 30, 2022
- Record last updated
- Jul 23, 2026
- Medicare enrollment
- Enrolled (PECOS I20250827001298); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Aurora, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1001 Potrero Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Abbs, M.D.Internal Medicine Physician1295269983
- Atokena AbeStudent in an Organized Health Care Education/Training Program1043130149
- Mary Ann AbilleRegistered Nurse1699155804
- Nasrin Aboudamous, FNPFamily Nurse Practitioner1699579912
- Elizabeth AdvientoRegistered Nurse1124968987
- Rocio Agraz-Lara, RN, PHNRegistered Nurse1003075995
Verify Brittany Mariko Denzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
38 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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
- Denver Health And Hospital AuthorityDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brittany Mariko Denzer among 17,696 internal medicine physician records in California
Brittany Mariko Denzer, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
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Common questions
What is Brittany Mariko Denzer, MD's NPI number?
Brittany Mariko Denzer, MD's National Provider Identifier (NPI) is 1942940754, issued on Mar 30, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Brittany Mariko Denzer, MD located?
The NPPES record lists a practice address at 1001 Potrero Ave, San Francisco, CA, 94110. Phone: (628) 206-8000. Providers update this record themselves, so call before visiting.
How can I verify Brittany Mariko Denzer, MD's license?
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 Brittany Mariko Denzer, MD prescribe under Medicare Part D?
In 2024, Brittany Mariko Denzer, MD had 38 Medicare Part D claims; 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.