Ann K. Lanzerotti, M.D.
Hematology & Oncology Physician · San Francisco, CA
Ann K. Lanzerotti, M.D. is a hematology & oncology physician with a practice address in San Francisco, California, and NPI 1104227826, issued on Sep 12, 2014. Check the license (California G17197, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ann K. Lanzerotti
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G17197 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3009 Clay St, San Francisco, CA 94115
- Phone
- (415) 931-7661
- Enumerated
- Sep 12, 2014
- Record last updated
- Sep 12, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (415) 931-7661
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify Ann K. Lanzerotti in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G17197Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ann K. Lanzerotti among 1,583 hematology & oncology physician records in California
Ann K. Lanzerotti, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 81% of them.
- NPI issued2014 · 81% of these records are older, 16% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2014 · 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 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,583 in California → Every provider in San Francisco → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Caroline Behler, M.D., M.S.San Francisco, CA 941151518155357
- Stephanie Jeske, MD, MSCSan Francisco, CA 941151194942813
- Alfredo Lopez, MDSan Francisco, CA 941151033297668
- Francisco Martinez, MDSan Francisco, CA 941151649769225
- Amy Nelson, MDSan Francisco, CA 941151265510853
- Nayha Tahir, MDSan Francisco, CA 941151649733007
- Derrick Tao, MDSan Francisco, CA 941151881190254
- Jahan Tavakoli, M.D.San Francisco, CA 941151942214887
Common questions
What is Ann K. Lanzerotti, M.D.'s NPI number?
Ann K. Lanzerotti, M.D.'s National Provider Identifier (NPI) is 1104227826, issued on Sep 12, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ann K. Lanzerotti, M.D. located?
The NPPES record lists a practice address at 3009 Clay St, San Francisco, CA, 94115. Phone: (415) 931-7661. Providers update this record themselves, so call before visiting.
How can I verify Ann K. Lanzerotti, M.D.'s license?
NPPES lists California license number G17197, 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. 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.