Doctor profile · Federal record

Dr. Sue Chang, MD

Cytopathology Physician (CMS: Pathology) · Anatomic Pathology Physician · Duarte, CA

  • NPI 1235450776
  • Accepts Medicare
  • MIPS 91.9 / 100 · 2023
  • 16 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1500 Duarte RD
Duarte, CA 910103012
(626) 256-4673
Additional location
75 Francis St, Amory 360H
Boston, MA 021156110
(617) 732-4699
Mailing address
Po Box 512185
Los Angeles, CA 900510185

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
November 20, 2020
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207ZC0500X — NUCC code
State licenses (2)
California #A119353 · Massachusetts #258970

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235450776. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,176
Distinct HCPCS
10
Medicare allowed
$173,296
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,133 650 $39
88108 Cell examination of specimen, concentration technique 858 662 $23
88341 Special stained specimen slides to examine tissue, each additional procedure 797 179 $30
88173 Evaluation of fine needle aspirate with interpretation and report 396 219 $73
88342 Special stained specimen slides to examine tissue, initial procedure 259 192 $37
88312 Special stained specimen slides to identify organisms including interpretation and report 197 147 $27
88321 Surgical pathology consultation and report on referred slides prepared elsewhere 146 144 $88
88307 Pathology examination of tissue using a microscope, moderately high complexity 112 45 $86
88309 Pathology examination of tissue using a microscope, high complexity 66 33 $152
88331 Pathology examination of specimen during surgery, first tissue block 63 27 $64

In context: peer comparison

Among 2 peers in Duarte Cytopathology Physician, average services per provider: 188. This provider delivers 22× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,644
Transactions
6
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 6 $3,644.03

By nature of payment

Consulting Fee
$3,375
Travel and Lodging
$230
Food and Beverage
$39

Frequently asked questions

Auto-generated from federal data
What is Dr. Sue Chang's medical specialty?
Dr. Sue Chang practices Cytopathology Physician in Duarte, CA.
Where does Dr. Sue Chang practice?
Dr. Sue Chang practices at 1500 Duarte RD, Duarte, CA 910103012. Office phone: 6262564673.
What is Dr. Sue Chang's NPI?
Dr. Sue Chang's National Provider Identifier (NPI) is 1235450776, issued by NPPES.
Does Dr. Sue Chang accept Medicare assignment?
Yes. Dr. Sue Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sue Chang commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Cell examination of specimen, concentration technique (HCPCS 88108); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.