Doctor profile · Federal record

Dr. Harry Chang, M.D.

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · New York, NY

  • NPI 1598150831
  • Accepts Medicare
  • MIPS 93.4 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
630 W 168Th St, PH 8 East Room 105
New York, NY 100323725
(212) 305-5960
Mailing address
630 W 168Th St # 4
New York, NY 100323725

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
April 19, 2018
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
New York #287180

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598150831. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
428
Distinct HCPCS
5
Medicare allowed
$50,719
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 224 87 $136
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 90 55 $90
99238 Hospital discharge day management, 30 minutes or less 55 52 $92
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 32 18 $57
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 27 27 $197

In context: peer comparison

Among 190 peers in this city , average services per provider: 97. This provider delivers 4.4× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Harry Chang's medical specialty?
Dr. Harry Chang practices Hospitalist Physician in New York, NY.
Where does Dr. Harry Chang practice?
Dr. Harry Chang practices at 630 W 168Th St, New York, NY 100323725. Office phone: 2123055960.
What is Dr. Harry Chang's NPI?
Dr. Harry Chang's National Provider Identifier (NPI) is 1598150831, issued by NPPES.
Does Dr. Harry Chang accept Medicare assignment?
Yes. Dr. Harry Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Harry Chang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.