Thao Phung, MD
NPI 1699909622 · Hospitalist Physician · Tustin, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thao Phung, MD is a Hospitalist Physician provider in Tustin, CA (NPI 1699909622).
Provider details
- NPI number
- 1699909622
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A125932 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
992 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 492 | $122 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 169 | $179 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 155 | $119 |
| Critical Care, First 30-74 Minutes99291 | 84 | $217 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 47 | $113 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 102 | 17 |
| Tamsulosin Hcl | 49 | — |
| Amlodipine Besylate | 45 | 12 |
| Finasteride | 44 | — |
| Apixabanbrand: Eliquis | 43 | 13 |
| Metoprolol Tartrate | 42 | 14 |
| Famotidine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-05-05
- Last updated
- 2019-04-04
Frequently asked questions
- What is Thao Phung's NPI number?
- Thao Phung's National Provider Identifier (NPI) is 1699909622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thao Phung's specialty?
- Thao Phung is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Thao Phung located?
- Thao Phung's practice location on file with NPPES is 2913 El Camino Real Ste 316, Tustin, CA 92782-8909.
- What is Thao Phung's phone number?
- The practice phone number listed in the NPPES registry for Thao Phung is (949) 229-1153.
- Does Thao Phung accept Medicare?
- Thao Phung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thao Phung's NPI active?
- Yes — Thao Phung's NPI (1699909622) is active in the NPPES registry as of the last update on 2019-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.