Hien Huynh, M.D.
NPI 1881928620 · Anatomic Pathology & Clinical Pathology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hien Huynh, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Los Angeles, CA (NPI 1881928620).
Provider details
- NPI number
- 1881928620
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 116954 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
911 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 309 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 208 | $29 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 87 | $27 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 52 | $36 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 48 | $12 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 44 | $28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-09-27
- Last updated
- 2016-03-07
Frequently asked questions
- What is Hien Huynh's NPI number?
- Hien Huynh's National Provider Identifier (NPI) is 1881928620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hien Huynh's specialty?
- Hien Huynh is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Hien Huynh located?
- Hien Huynh's practice location on file with NPPES is 2131 W 3rd St, Los Angeles, CA 90057-1901.
- What is Hien Huynh's phone number?
- The practice phone number listed in the NPPES registry for Hien Huynh is (213) 484-7111.
- Does Hien Huynh accept Medicare?
- Hien Huynh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hien Huynh's NPI active?
- Yes — Hien Huynh's NPI (1881928620) is active in the NPPES registry as of the last update on 2016-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.