Charles M. Dollbaum, M.D.
Medical Oncology Physician · San Francisco, CA
Charles M. Dollbaum, M.D. is a medical oncology physician with a practice address in San Francisco, California, and NPI 1205863552, issued on Jun 26, 2006. Check the license (California G48211, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles M. Dollbaum
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- G48211 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Divisadero St FL 2, San Francisco, CA 94115
- Phone
- (415) 353-7070
- Enumerated
- Jun 26, 2006
- Record last updated
- Nov 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (415) 353-7021
- Medicaid ID
- 00G482110 CA
- Medicare enrollment
- Enrolled (PECOS I20080214000525); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 1600 Divisadero St FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles M. Dollbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G48211Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average medical oncology physician in 2024
163 Medicare Part D claims for 38 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Anastrozole109 claims
- Tamoxifen Citrate21 claims
- Raloxifene Hcl19 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 practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- 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).
Charles M. Dollbaum among 447 medical oncology physician records in California
Charles M. Dollbaum, M.D. is one of 447 medical oncology physician records with a practice address in California. 82% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1981 · median 2004 among the 312 with a school on file
- Record last updated2012 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in San Francisco → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Chloe Atreya, MD, PHDSan Francisco, CA 941151326058777
- Christopher Benz, M.D.San Francisco, CA 941151457381014
- Emily Bergsland, MDSan Francisco, CA 941151295792729
- John Berry, M.D.San Francisco, CA 941151942236997
- Thierry Jahan, MDSan Francisco, CA 941151427007657
- Kevin Kim, M.D.San Francisco, CA 941151851485056
- Alan Kramer, MDSan Francisco, CA 941151356357347
- David Minor, MDSan Francisco, CA 941151023042942
Common questions
What is Charles M. Dollbaum, M.D.'s NPI number?
Charles M. Dollbaum, M.D.'s National Provider Identifier (NPI) is 1205863552, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles M. Dollbaum, M.D. located?
The NPPES record lists a practice address at 1600 Divisadero St FL 2, San Francisco, CA, 94115. Phone: (415) 353-7070. Providers update this record themselves, so call before visiting.
How can I verify Charles M. Dollbaum, M.D.'s license?
NPPES lists California license number G48211, 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 Charles M. Dollbaum, M.D. prescribe under Medicare Part D?
In 2024, Charles M. Dollbaum, M.D. had 163 Medicare Part D claims for 38 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Charles M. Dollbaum, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.5 of 100, reported for the practice group. 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.