Tan Trinh, M.D.
NPI 1659508455 · Anesthesiology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tan Trinh, M.D. is a Anesthesiology Physician provider in San Antonio, TX (NPI 1659508455).
Provider details
- NPI number
- 1659508455
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A143641 (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
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
105 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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 45 | $119 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 25 | $121 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 24 | $132 |
| Anesthesia for Other Procedure on Lower Abdomen00840 | 11 | $280 |
Typical Medicare-allowed amounts for these services range $119–$280 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (3)
- 1422 El Camino RealMenlo Park, CA 94025Phone: (650) 903-9500Fax: (650) 903-9900
- 1422 El Camino RealMenlo Park, CA 94025-4110Phone: (650) 903-9500Fax: (650) 903-9900
- 1422 El Camino RealMenlo Park, CA 94025Phone: (650) 903-9500Fax: (650) 903-9900
Registry dates
- Enumerated
- 2009-06-18
- Last updated
- 2019-03-05
Frequently asked questions
- What is Tan Trinh's NPI number?
- Tan Trinh's National Provider Identifier (NPI) is 1659508455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tan Trinh's specialty?
- Tan Trinh is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Tan Trinh located?
- Tan Trinh's practice location on file with NPPES is 7703 Floyd Curl Dr # Mc7977, San Antonio, TX 78229.
- What is Tan Trinh's phone number?
- The practice phone number listed in the NPPES registry for Tan Trinh is (210) 567-4500.
- Does Tan Trinh accept Medicare?
- Tan Trinh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tan Trinh's NPI active?
- Yes — Tan Trinh's NPI (1659508455) is active in the NPPES registry as of the last update on 2019-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.