Doctor profile · Federal record

Dr. Jennifer Chang, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Riverside, CA

  • NPI 1831364991
  • Accepts Medicare
  • MIPS 95.9 / 100 · 2023
  • 21 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3865 Jackson St
Riverside, CA 92503
(714) 869-7760
Mailing address
Po Box 71125
Riverside, CA 925131125

Credentials & registration

NPPES · NUCC
NPI registered
April 2008 — 18 yrs on file
Profile last updated
May 12, 2012
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A106844 · New York #249583

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831364991. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
312
Distinct HCPCS
5
Medicare allowed
$27,834
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 162 23 $50
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 64 26 $80
99291 Critical care, first 30-74 minutes 39 11 $212
99239 Hospital discharge day management, more than 30 minutes 31 30 $116
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 16 16 $175

In context: peer comparison

Among 41 peers in this city , average services per provider: 160. This provider delivers 2.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$189
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Cook Medical LLC 1 $164.31
Xeris Pharmaceuticals, Inc. 1 $24.34

By nature of payment

Food and Beverage
$189

Frequently asked questions

Auto-generated from federal data
What is Dr. Jennifer Chang's medical specialty?
Dr. Jennifer Chang practices Internal Medicine Physician in Riverside, CA.
Where does Dr. Jennifer Chang practice?
Dr. Jennifer Chang practices at 3865 Jackson St, Riverside, CA 92503. Office phone: 7148697760.
What is Dr. Jennifer Chang's NPI?
Dr. Jennifer Chang's National Provider Identifier (NPI) is 1831364991, issued by NPPES.
Does Dr. Jennifer Chang accept Medicare assignment?
Yes. Dr. Jennifer Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jennifer Chang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.