Doctor profile · Federal record

Dr. Tiffany Chang, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Winfield, IL

  • NPI 1396915021
  • Accepts Medicare
  • MIPS 92.9 / 100 · 2023
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
25 N Winfield RD
Winfield, IL 601901222
(630) 933-2048
Mailing address
Department 4432
Carol Stream, IL 601220001

Credentials & registration

NPPES · NUCC
NPI registered
March 2008 — 18 yrs on file
Profile last updated
June 1, 2011
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Illinois #036112863
Medicaid
IL #036112863

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396915021. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,686
Distinct HCPCS
10
Medicare allowed
$124,083
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,144 659 $37
88341 Special stained specimen slides to examine tissue, each additional procedure 475 110 $28
84165 Protein measurement, serum 398 349 $18
88112 Cell examination of specimen, selective cellular enhancement technique 311 266 $28
86334 Immunologic analysis technique on serum (immunofixation) 281 236 $18
88342 Special stained specimen slides to examine tissue, initial procedure 192 167 $35
88173 Evaluation of fine needle aspirate with interpretation and report 179 118 $70
88307 Pathology examination of tissue using a microscope, moderately high complexity 124 67 $82
88312 Special stained specimen slides to identify organisms including interpretation and report 66 35 $27
88311 Preparation of tissue for examination by removing any calcium present 64 63 $13

In context: peer comparison

Among 3 peers in this city , average services per provider: 171. This provider delivers 22× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tiffany Chang's medical specialty?
Dr. Tiffany Chang practices Anatomic Pathology & Clinical Pathology Physician in Winfield, IL.
Where does Dr. Tiffany Chang practice?
Dr. Tiffany Chang practices at 25 N Winfield RD, Winfield, IL 601901222. Office phone: 6309332048.
What is Dr. Tiffany Chang's NPI?
Dr. Tiffany Chang's National Provider Identifier (NPI) is 1396915021, issued by NPPES.
Does Dr. Tiffany Chang accept Medicare assignment?
Yes. Dr. Tiffany Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tiffany Chang commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Protein measurement, serum (HCPCS 84165). Source: CMS Medicare Physician & Other Practitioners file.