DR. BRIAN T. BAST DMD, MD
NPI 1689693087
Dentist - Oral and Maxillofacial Surgery in San Francisco, CA
About Dr. Brian T. Bast Dmd, Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIAN T. BAST DMD, MD (NPI 1689693087) is an individual oral and maxillofacial surgery provider in San Francisco, California, licensed in California (A77023) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
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. Brian T. Bast Dmd, Md 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
4Medicare enrollment records show Brian Bast reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 34 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 29 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 637 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 94143 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.
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 Brian Bast's NPI number?
The NPI number for Brian Bast is 1689693087. It was assigned to this individual provider in the NPPES registry on July 18, 2006.
Where is Brian Bast located?
Brian Bast practices at 513 Parnassus Ave Rm S738, San Francisco, CA 94143. The listed phone number is (415) 476-3242.
What is Brian Bast's specialty?
The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.
Is Brian Bast enrolled in Medicare?
Yes. Brian Bast 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 Brian Bast's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Bast reassigns Medicare benefits to 4 organizations: Ucsf Medical Group Business Services (San Francisco, CA), Ucsf Oral & Maxillofacial Surgery (San Francisco, CA), Ucsf Oral Medicine Clinic (San Francisco, CA) and University Of California Sfgh Medical Group (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 Brian Bast's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Bast accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Brian Bast as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Brian Bast was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Brian T. Bast, DMD, MD · NPI 1689693087
Oral and Maxillofacial Surgery provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 18, 2006.
## Identity
- **NPI:** 1689693087 (Entity type: Individual)
- **Enumerated:** July 18, 2006
- **Primary specialty:** Dentist - Oral and Maxillofacial Surgery · taxonomy 1223S0112X
- **State license:** A77023 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 513 PARNASSUS AVE RM S738, San Francisco, CA 94143-2205
- **Phone:** (415) 476-3242 · **Fax:** (415) 476-0665
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Oral & Maxillofacial Surgery (NPI 1679652598, San Francisco, CA); Ucsf Oral Medicine Clinic (NPI 1376612960, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1356696215, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2000
## Record status
- **NPPES last updated:** July 9, 2007
- **Other identifiers:** Medicare UPIN U98817 (CA); Medicare PIN 00A770230 (CA); Medicaid 00A770230 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1689693087) · Data from the CMS NPPES public registry.