Doctor profile · Federal record

Dr. James Yoon, M.D.

Medical Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Hematology (Internal Medicine) Physician · New York, NY

  • NPI 1669903548
  • Accepts Medicare
  • 9 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1275 York Ave
New York, NY 100656007
(212) 639-2000

Credentials & registration

NPPES · NUCC
NPI registered
March 2017 — 9 yrs on file
Profile last updated
August 1, 2024
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
New York #329655

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669903548. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
189
Distinct HCPCS
3
Medicare allowed
$22,717
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 111 32 $126
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 47 17 $84
99215 Established patient office or other outpatient visit, 40-54 minutes 31 12 $153

In context: peer comparison

Among 122 peers in this city , average services per provider: 215. This provider delivers 0.9× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. James Yoon's medical specialty?
Dr. James Yoon practices Medical Oncology Physician in New York, NY.
Where does Dr. James Yoon practice?
Dr. James Yoon practices at 1275 York Ave, New York, NY 100656007. Office phone: 2126392000.
What is Dr. James Yoon's NPI?
Dr. James Yoon's National Provider Identifier (NPI) is 1669903548, issued by NPPES.
Does Dr. James Yoon accept Medicare assignment?
Yes. Dr. James Yoon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Yoon 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); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.