Tiannan Wang, M.D.
NPI 1003229329 · Anatomic Pathology & Clinical Pathology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiannan Wang, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Los Angeles, CA (NPI 1003229329).
Provider details
- NPI number
- 1003229329
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A149981 (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
12 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
626 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 | 225 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 194 | $29 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 92 | $84 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 87 | $36 |
| Surgical Pathology Consultation and Report on Referred Slides Prepared Elsewhere88321 | 16 | $86 |
| Cell Examination of Specimen, Concentration Technique88108 | 12 | $23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-04
- Last updated
- 2023-11-27
- Certified
- 2020-09-08
Frequently asked questions
- What is Tiannan Wang's NPI number?
- Tiannan Wang's National Provider Identifier (NPI) is 1003229329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiannan Wang's specialty?
- Tiannan Wang is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Tiannan Wang located?
- Tiannan Wang's practice location on file with NPPES is 1500 San Pablo St Rm 216, Los Angeles, CA 90033-5313.
- What is Tiannan Wang's phone number?
- The practice phone number listed in the NPPES registry for Tiannan Wang is (323) 442-2582.
- Does Tiannan Wang accept Medicare?
- Tiannan Wang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiannan Wang's NPI active?
- Yes — Tiannan Wang's NPI (1003229329) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.