Doctor profile · Federal record

Dr. DENNIS CHAN, MD

Radiation Oncology Physician (CMS: RADIATION ONCOLOGY) · Internal Medicine Physician · Radiation Oncology Physician · Student in an Organized Health Care Education/Training Program · MAYWOOD, IL

  • NPI 1679005243
  • Accepts Medicare
  • 9 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2160 S 1ST AVE
MAYWOOD, IL 60153
(888) 584-7888
Additional location
4201 Saint Antoine St
Detroit, MI 48201
(800) 527-6266

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
October 23, 2019
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (2)
Illinois #125.071442 · Michigan #4301115711

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679005243. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,428
Distinct HCPCS
10
Medicare allowed
$228,457
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 832 82 $46
77300 Calculation of radiation therapy dose 333 73 $34
77427 Radiation treatment management, 5 treatment sessions 302 123 $201
77334 Design and construction of complex radiation treatment device 279 95 $62
77263 Complex radiation therapy planning 93 92 $178
77280 Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 93 61 $40
77290 Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 64 60 $85
99214 Established patient office or other outpatient visit, 30-39 minutes 55 46 $102
77338 Design and construction of radiation treatment device for high precision radiation therapy 51 41 $229
99204 New patient office or other outpatient visit, 45-59 minutes 44 44 $141

In context: peer comparison

Among 2 peers in this city , average services per provider: 121. This provider delivers 20× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$30
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
INTUITIVE SURGICAL, INC. 1 $30.13

By nature of payment

Food and Beverage
$30

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
11
Patients
0
Total drug cost
$200
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 11 0 $200

Hospital affiliations

CMS Hospital Compare