Amy Baca, M.D.
Internal Medicine Physician · San Francisco, CA
Amy Baca, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1912393224, issued on Apr 13, 2015. Check the license (California 1165025, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Amy Baca
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1165025 CA
Self-reported in NPPES; status is on the state search - Practice location
- 45 Castro St Ste 402, San Francisco, CA 94114
- Phone
- (415) 600-4750
- Enumerated
- Apr 13, 2015
- Record last updated
- Mar 7, 2023
- Fax
- (415) 369-1314
- Medicare enrollment
- Enrolled (PECOS I20180814004207); accepts Medicare assignment
- Medical or professional school
- University Of New Mexico School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 45 Castro St Ste 402
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lorne Harris, NPNurse Practitioner1386020576
Verify Amy Baca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 1165025Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,970 Medicare Part D claims for 184 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 40 claims were for opioids.
Most prescribed
- Atorvastatin Calcium126 claims
- Amlodipine Besylate114 claims
- Rosuvastatin Calcium110 claims
- Levothyroxine Sodium70 claims
- Lisinopril70 claims
- Losartan Potassium65 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: $5,779.59
8 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. 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
- Sutter Bay Medical FoundationSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Amy Baca among 17,696 internal medicine physician records in California
Amy Baca, M.D. 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 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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 →
The 8 internal medicine physician records with the nearest ZIP codes
- Virginia Cafaro, MDSan Francisco, CA 941141174596969
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- Jenny-Viva Collisson, MDSan Francisco, CA 941141841223567
- Louis Cubba, MDSan Francisco, CA 941141649201716
- Toby Dyner, M.D.San Francisco, CA 941141447357330
- Jaime Eisen, M.D.San Francisco, CA 941141932295565
- Mark Higgins, MDSan Francisco, CA 941141134193469
- Cory Hussain, M.D.San Francisco, CA 941141952368409
Common questions
What is Amy Baca, M.D.'s NPI number?
Amy Baca, M.D.'s National Provider Identifier (NPI) is 1912393224, issued on Apr 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Amy Baca, M.D. located?
The NPPES record lists a practice address at 45 Castro St Ste 402, San Francisco, CA, 94114. Phone: (415) 600-4750. Providers update this record themselves, so call before visiting.
How can I verify Amy Baca, M.D.'s license?
NPPES lists California license number 1165025, 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 Amy Baca, M.D. prescribe under Medicare Part D?
In 2024, Amy Baca, M.D. had 1,970 Medicare Part D claims for 184 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.