Doctor profile · Federal record

Dr. Christopher Holbrook, M.D.

Hospitalist Physician (CMS: Hospitalist) · Surgery Physician · Chicago, IL

  • NPI 1831486281
  • Accepts Medicare
  • 19 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
676 N Saint Clair St
Chicago, IL 606112927
(312) 503-8481

Credentials & registration

NPPES · NUCC
NPI registered
July 2011 — 15 yrs on file
Profile last updated
April 27, 2017
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Illinois #036141735 · Illinois #125054037

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831486281. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
616
Distinct HCPCS
6
Medicare allowed
$78,938
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 356 145 $123
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 104 103 $181
99239 Hospital discharge day management, more than 30 minutes 82 82 $119
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 40 31 $78
99238 Hospital discharge day management, 30 minutes or less 21 21 $84
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 13 12 $134

In context: peer comparison

Among 154 peers in this city , average services per provider: 128. This provider delivers 4.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Christopher Holbrook's medical specialty?
Dr. Christopher Holbrook practices Hospitalist Physician in Chicago, IL.
Where does Dr. Christopher Holbrook practice?
Dr. Christopher Holbrook practices at 676 N Saint Clair St, Chicago, IL 606112927. Office phone: 3125038481.
What is Dr. Christopher Holbrook's NPI?
Dr. Christopher Holbrook's National Provider Identifier (NPI) is 1831486281, issued by NPPES.
Does Dr. Christopher Holbrook accept Medicare assignment?
Yes. Dr. Christopher Holbrook accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Holbrook commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.