Tiffany Chang, M.D.
NPI 1396915021 · Anatomic Pathology & Clinical Pathology Physician · Winfield, IL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiffany Chang, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Winfield, IL (NPI 1396915021).
Provider details
- NPI number
- 1396915021
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036112863 (IL)
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
18 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
3,930 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 | 1,159 | $37 |
| Protein Measurement, Serum84165 | 462 | $18 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 399 | $28 |
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 322 | $18 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 307 | $27 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 179 | $69 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-03-10
- Last updated
- 2011-06-01
Frequently asked questions
- What is Tiffany Chang's NPI number?
- Tiffany Chang's National Provider Identifier (NPI) is 1396915021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Chang's specialty?
- Tiffany Chang is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Tiffany Chang located?
- Tiffany Chang's practice location on file with NPPES is 25 N Winfield Rd, Winfield, IL 60190-1222.
- What is Tiffany Chang's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Chang is (630) 933-2048.
- Does Tiffany Chang accept Medicare?
- Tiffany Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiffany Chang's NPI active?
- Yes — Tiffany Chang's NPI (1396915021) is active in the NPPES registry as of the last update on 2011-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.