Individual provider Active NPI

Christopher Thomas Holbrook, M.D.

  • Hospitalist Physician
  • Chicago, IL
National Provider Identifier
1831486281
Registry record updated Apr 27, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
036141735 Issued in IL
Practice address
676 N Saint Clair St
Chicago, IL 60611-2927
Phone
(312) 503-8481
NPI assigned
Jul 6, 2011
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 27, 2017

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X 036141735 IL Primary
Surgery Physician 208600000X 125054037 IL

Addresses

Primary practice location

676 N Saint Clair St
Chicago, IL 60611-2927

Mailing address

676 N Saint Clair St
Chicago, IL 60611-2927
Phone (312) 503-8481

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20170302001752 IL Practitioner - HospitalistPractitioner - Internal Medicine 4688958069 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Prime Healthcare Illinois Medical Group LLCGroup PAC ID 5597275685, 278 clinicians
Chicago Physician Services PCGroup PAC ID 5496194698, 23 clinicians

Practice addresses (Care Compare)

100 N River Rd
Des Plaines, IL 60016-1209
Phone (847) 297-1800

2900 N Lake Shore Dr
Chicago, IL 60657-5640
Phone (773) 665-3000

355 Ridge Ave
Evanston, IL 60202-3328
Phone (847) 316-4000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
125054037ILMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Endeavor Health Medical Group CurrentSince Feb 23, 2017 Accepting new patients
Chicago Physician Services, P.C. Hospitalist CurrentSince Jun 10, 2024 Accepting new patients
Freeport Memorial Hospital CurrentSince Jun 1, 2018 Accepting new patients
Cook Physician Services, P.C. Hospitalist CurrentSince Jun 1, 2024 Accepting new patients
Prime Healthcare Illinois Medical Group LLC CurrentSince Jun 23, 2025 Accepting new patients
Endeavor Health Medical Group Current Accepting new patients

Locations

1801 W Olympic Blvd
#2636
Pasadena, CA 91199

1325 N Highland Ave
Aurora, IL 60506
Phone (630) 801-2756

100 Provena Way
Ste 103
Bourbonnais, IL 60914
Phone (815) 937-8780

680 N Lake Shore Dr
Ste 1000
Chicago, IL 60611
Phone (312) 695-4022

2900 N Lakeshore
Chicago, IL 60657
Phone (773) 665-3240

2800 N Sheridan Rd
Ste 60
Chicago, IL 60657
Phone (773) 525-8846

9532 Eagle Way
Chicago, IL 60678

7435 W Talcott Ave
Chicago, IL 60631
Phone (773) 467-9977

100 N River Rd
Des Plaines, IL 60016
Phone (847) 297-1800

355 Ridge Ave
Evanston, IL 60202
Phone (847) 316-2329

2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206

2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222

1045 W Stephenson St
Freeport, IL 61032
Phone (815) 599-6105

1555 N Barrington Rd
Hoffman Estates, IL 60169
Phone (847) 490-2923

201 N Hammes Ave
Joliet, IL 60435
Phone (224) 273-6350

660 N Westmoreland Rd
#302
Lake Forest, IL 60045

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1309910400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1493251200000",
    "number": "1831486281",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "676 N SAINT CLAIR ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112927",
            "telephone_number": "312-503-8481"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "676 N SAINT CLAIR ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112927",
            "telephone_number": "312-503-8481"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLBROOK",
        "first_name": "CHRISTOPHER",
        "middle_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-07-06",
        "last_updated": "2017-04-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036141735",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IL",
            "license": "125054037",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.