Thao Phan, M.D.
NPI 1306849807 · Specialist · Union City, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thao Phan, M.D. is a Specialist provider in Union City, CA (NPI 1306849807).
Provider details
- NPI number
- 1306849807
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A90577 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
21 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 437 | 191 |
| Amlodipine Besylate | 279 | 119 |
| Losartan Potassium | 212 | 99 |
| Levothyroxine Sodium | 193 | 77 |
| Atenolol | 192 | 75 |
| Simvastatin | 187 | 71 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-27
- Last updated
- 2021-12-13
Frequently asked questions
- What is Thao Phan's NPI number?
- Thao Phan's National Provider Identifier (NPI) is 1306849807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thao Phan's specialty?
- Thao Phan is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Thao Phan located?
- Thao Phan's practice location on file with NPPES is 3553 Whipple Rd, Union City, CA 94587-1507.
- What is Thao Phan's phone number?
- The practice phone number listed in the NPPES registry for Thao Phan is (510) 454-1000.
- Does Thao Phan accept Medicare?
- Thao Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thao Phan's NPI active?
- Yes — Thao Phan's NPI (1306849807) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.