Doctor profile · Federal record

Dr. Sanjay Joag, M.D.

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Chicago, IL

  • NPI 1174543615
  • Accepts Medicare
  • 43 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
2545 S King Dr
Chicago, IL 606162441
(312) 842-7117
Additional location
4309 W Medical Center Dr Ste A102
McHenry, IL 600508436
(815) 338-6600
Additional location
875 S Route 31
Crystal Lake, IL 600148190
(779) 220-5500
Mailing address
4309 Medical Center Dr. Mob Ste A102
McHenry, IL 60050

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
October 18, 2023
Year of graduation
1983 — 43 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Illinois #036107309 · Illinois #036-107309

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174543615. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
285
Distinct HCPCS
2
Medicare allowed
$41,210
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 176 173 $129
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 109 109 $170

In context: peer comparison

Among 154 peers in this city , average services per provider: 128. This provider delivers 2.2× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Sanjay Joag's medical specialty?
Dr. Sanjay Joag practices Hospitalist Physician in Chicago, IL.
Where does Dr. Sanjay Joag practice?
Dr. Sanjay Joag practices at 2545 S King Dr, Chicago, IL 606162441. Office phone: 3128427117.
What is Dr. Sanjay Joag's NPI?
Dr. Sanjay Joag's National Provider Identifier (NPI) is 1174543615, issued by NPPES.
Does Dr. Sanjay Joag accept Medicare assignment?
Yes. Dr. Sanjay Joag accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sanjay Joag commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.