Alexander David Borowsky, M.D.
Anatomic Pathology & Clinical Pathology Physician · San Francisco, CA
Alexander David Borowsky, M.D. is an anatomic pathology & clinical pathology physician with a practice address in San Francisco, California, and NPI 1891777512, issued on Nov 17, 2005. Check the license (California A77194, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander David Borowsky
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- A77194 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1825 4TH St, San Francisco, CA 94143
- Phone
- (415) 353-1613
- Enumerated
- Nov 17, 2005
- Record last updated
- Aug 25, 2025
- Medicare enrollment
- Enrolled (PECOS I20110421000457); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 1825 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yanett Anaya, MDReproductive Endocrinology Physician1215299102
- Onyemaechi Anoruo, MD, MPH, MSObstetrics & Gynecology Physician1679159511
- Cynthia Armour, NPFamily Nurse Practitioner1811023435
Verify Alexander David Borowsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A77194Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Regents OF The Univ OF CASacramento, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander David Borowsky among 1,554 anatomic pathology & clinical pathology physician records in California
Alexander David Borowsky, M.D. is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1994 · median 2003 among the 891 with a school on file
- Record last updated2025 · 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 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in San Francisco → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Frederick Baehner, MDSan Francisco, CA 941431326091208
- Katharine BradySan Francisco, CA 941431265476196
- Yunn-Yi Chen, MDSan Francisco, CA 941431841245966
- Mamatha Chivukula, MDSan Francisco, CA 941431750353280
- Linda Ferrell, MDSan Francisco, CA 941431730137126
- Sanjay Kakar, MDSan Francisco, CA 941431235187634
- Marta Margeta, MDSan Francisco, CA 941431477510626
- Stephen Nishimura, MDSan Francisco, CA 941431457307688
Common questions
What is Alexander David Borowsky, M.D.'s NPI number?
Alexander David Borowsky, M.D.'s National Provider Identifier (NPI) is 1891777512, issued on Nov 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Alexander David Borowsky, M.D. located?
The NPPES record lists a practice address at 1825 4TH St, San Francisco, CA, 94143. Phone: (415) 353-1613. Providers update this record themselves, so call before visiting.
How can I verify Alexander David Borowsky, M.D.'s license?
NPPES lists California license number A77194, 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.
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.