DANA THUY BUI M.D.
NPI 1235576141
Internal Medicine in San Francisco, CA
About Dana Thuy Bui M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DANA THUY BUI M.D. (NPI 1235576141) is an individual internal medicine provider in San Francisco, California, licensed in California (A121638) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Dana Thuy Bui 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 Reassignment
Medicare enrollment records show Dana Bui reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 213 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 5
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 94117 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94117
SAN FRANCISCO, CA 94117
SAN FRANCISCO, CA 94117
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 Dana Bui's NPI number?
The NPI number for Dana Bui is 1235576141. It was assigned to this individual provider in the NPPES registry on May 31, 2013. The provider is also known as Dan Thuy Bui M.D..
Where is Dana Bui located?
Dana Bui practices at 450 Stanyan St, San Francisco, CA 94117. The listed phone number is (415) 668-1000.
What is Dana Bui's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Dana Bui enrolled in Medicare?
Yes. Dana Bui 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 organization bills Medicare for Dana Bui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dana Bui reassigns Medicare benefits to Pacific Inpatient Medical Group (San Francisco, CA). The 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 Dana Bui'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 Dana Bui was last updated on May 31, 2013. 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.
# Dana Thuy Bui, M.D. · NPI 1235576141
Internal Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since May 31, 2013.
## Identity
- **NPI:** 1235576141 (Entity type: Individual)
- **Enumerated:** May 31, 2013
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A121638 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 450 STANYAN ST, San Francisco, CA 94117-1019
- **Phone:** (415) 668-1000
## 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:** Pacific Inpatient Medical Group (NPI 1447447248, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** May 31, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1235576141) · Data from the CMS NPPES public registry.