Alexander R. Gottschalk, M.D.
Radiation Oncology Physician · San Francisco, CA
Alexander R. Gottschalk, M.D. is a radiation oncology physician with a practice address in San Francisco, California, and NPI 1790728137, issued on Jun 14, 2006. Check the license (California A64899, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander R. Gottschalk
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A64899 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Divisadero St, San Francisco, CA 94115
- Phone
- (415) 353-7175
- Enumerated
- Jun 14, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (415) 353-9883
- Medicaid ID
- 00A648990 CA
- Medicare enrollment
- Enrolled (PECOS I20080306000731); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 1600 Divisadero St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Betsy Althaus, PHARM.D.Pharmacist1366650657
- Mehrdad Arjomandi, MDCritical Care Medicine (Internal Medicine) Physician1912951153
- Chloe Atreya, MD, PHDMedical Oncology Physician1326058777
- Ronald Balassanian, MDAnatomic Pathology & Clinical Pathology Physician1043282379
- Christopher Benz, M.D.Medical Oncology Physician1457381014
- Emily Bergsland, MDMedical Oncology Physician1295792729
Verify Alexander R. Gottschalk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average radiation oncology physician in 2024
128 Medicare Part D claims for 33 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl81 claims
- Doxazosin Mesylate11 claims
- Terazosin Hcl11 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.
The MIPS final score for 2023 (Medicare payment program): 77.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $599.13
6 payments; by number, the most common kind was food and beverage; the largest payer was Bioprotect Medical, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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 2 group practices
- Ucsf Medical Group Business ServicesSan Francisco, 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 R. Gottschalk among 735 radiation oncology physician records in California
Alexander R. Gottschalk, M.D. is one of 735 radiation 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. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1996 · median 2005 among the 545 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in San Francisco → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Roy Abendroth, MDSan Francisco, CA 941151811988421
- Jason Chan, M.D.San Francisco, CA 941151033536917
- Barry Chauser, MDSan Francisco, CA 941151902897515
- Nam Woo Cho, MDPHDSan Francisco, CA 941151811420052
- I-Chow Hsu, M.D.San Francisco, CA 941151144263039
- Sara Huang, MDSan Francisco, CA 941151053393033
- John Lee, MDSan Francisco, CA 941151316938657
- John Meyer, MDSan Francisco, CA 941151164403416
Common questions
What is Alexander R. Gottschalk, M.D.'s NPI number?
Alexander R. Gottschalk, M.D.'s National Provider Identifier (NPI) is 1790728137, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander R. Gottschalk, M.D. located?
The NPPES record lists a practice address at 1600 Divisadero St, San Francisco, CA, 94115. Phone: (415) 353-7175. Providers update this record themselves, so call before visiting.
How can I verify Alexander R. Gottschalk, M.D.'s license?
NPPES lists California license number A64899, 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 Alexander R. Gottschalk, M.D. prescribe under Medicare Part D?
In 2024, Alexander R. Gottschalk, M.D. had 128 Medicare Part D claims for 33 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Alexander R. Gottschalk, M.D.'s MIPS final score?
The 2023 MIPS final score is 77.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.