Andy Hsi, M.D.
NPI 1366832032 · Anatomic Pathology & Clinical Pathology Physician · Placentia, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andy Hsi, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Placentia, CA (NPI 1366832032).
Provider details
- NPI number
- 1366832032
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A149487 (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
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
16,796 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 | 12,966 | $83 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 1,466 | $128 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 1,284 | $106 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 613 | $55 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 450 | $137 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 17 |
Practice location
Mailing address
Additional practice locations (1)
- 4951 Airport Pkwy Ste 590Addison, TX 75001-6642Phone: (214) 987-3376Fax: (469) 532-0273
Registry dates
- Enumerated
- 2015-02-02
- Last updated
- 2026-06-02
- Certified
- 2026-06-02
Frequently asked questions
- What is Andy Hsi's NPI number?
- Andy Hsi's National Provider Identifier (NPI) is 1366832032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andy Hsi's specialty?
- Andy Hsi is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Andy Hsi located?
- Andy Hsi's practice location on file with NPPES is 1041 E Yorba Linda Blvd Ste 304, Placentia, CA 92870-3751.
- What is Andy Hsi's phone number?
- The practice phone number listed in the NPPES registry for Andy Hsi is (714) 924-7240.
- Does Andy Hsi accept Medicare?
- Andy Hsi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andy Hsi's NPI active?
- Yes — Andy Hsi's NPI (1366832032) is active in the NPPES registry as of the last update on 2026-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.