DR. CHARLES M. DOLLBAUM M.D.
NPI 1205863552
Internal Medicine - Medical Oncology in San Francisco, CA
About Dr. Charles M. Dollbaum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHARLES M. DOLLBAUM M.D. (NPI 1205863552) is an individual medical oncology provider in San Francisco, California, licensed in California (G48211) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1981).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Charles M. Dollbaum M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Charles Dollbaum reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Charles Dollbaum's NPI number?
The NPI number for Charles Dollbaum is 1205863552. It was assigned to this individual provider in the NPPES registry on June 26, 2006.
Where is Charles Dollbaum located?
Charles Dollbaum practices at 1600 Divisadero St Fl 2, San Francisco, CA 94115. The listed phone number is (415) 353-7070.
What is Charles Dollbaum's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Charles Dollbaum enrolled in Medicare?
Yes. Charles Dollbaum is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Charles Dollbaum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Dollbaum reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Dollbaum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Charles Dollbaum was last updated on November 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Charles M. Dollbaum, M.D. · NPI 1205863552
Medical Oncology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since June 26, 2006.
## Identity
- **NPI:** 1205863552 (Entity type: Individual)
- **Enumerated:** June 26, 2006
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** G48211 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 DIVISADERO ST FL 2, San Francisco, CA 94115-3010
- **Phone:** (415) 353-7070 · **Fax:** (415) 353-7021
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1981
## Record status
- **NPPES last updated:** November 29, 2012
- **Other identifiers:** Medicare PIN 00G482110 (CA); Medicare UPIN A50973 (CA); Medicaid 00G482110 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1205863552) · Data from the CMS NPPES public registry.