Individual provider Active NPI

Karan Mathur, M.D.

  • Gastroenterology Physician
  • Detroit, MI
National Provider Identifier
1205277811
Registry record updated Jan 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
4301501018 Issued in MI
Practice address
4160 John R St Ste 615
Detroit, MI 48201-2022
Phone
(313) 745-4195
Fax
(313) 993-8669
NPI assigned
Jul 11, 2013
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 9, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 4301501018 MI Primary

Addresses

Primary practice location

4160 John R St Ste 615
Detroit, MI 48201-2022

Mailing address

400 Mack Ave
Detroit, MI 48201-2136

Other practice location 1

4201 Saint Antoine St
Uhc 2E
Detroit, MI 48201-2153
Phone (313) 745-4525

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
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
I20240608000163 MI Practitioner - Internal MedicinePractitioner - Gastroenterology 8224330931 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Gastroenterology
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University Physician GroupGroup PAC ID 8628087681, 399 clinicians

Practice addresses (Care Compare)

3990 John R St
Detroit, MI 48201-2018
Phone (313) 745-8040

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy24
Upper gastrointestinal (GI) endoscopy for acid reflux31

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
University Physician Group CurrentSince Jun 1, 2024 Accepting new patients
University Physician Group Past Accepting new patients
University Physician Group Past Accepting new patients

Locations

400 Mack Ave
Detroit, MI 48201
Phone (313) 448-9006

4160 John R St
Ste 615
Detroit, MI 48201
Phone (313) 745-5111

4100 John R St
Detroit, MI 48201
Phone (313) 576-8530

4201 Saint Antoine St
#2E
Detroit, MI 48201
Phone (313) 745-7888

3990 John R St
Detroit, MI 48201
Phone (313) 745-6211

1560 E Maple Rd
Ste 200
Troy, MI 48083
Phone (248) 581-5200

Interoperability endpoints

  • Direct secure messaging: karan.mathur.1@19711.direct.athenahealth.com

Organizations & group practices 3

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": "1373500800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767916800000",
    "number": "1205277811",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 MACK AVE",
            "city": "DETROIT",
            "state": "MI",
            "postal_code": "482012136"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4160 JOHN R ST STE 615",
            "city": "DETROIT",
            "state": "MI",
            "postal_code": "482012022",
            "telephone_number": "313-745-4195",
            "fax_number": "313-993-8669"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4201 Saint Antoine St",
            "address_2": "UHC 2E",
            "address_purpose": "LOCATION",
            "city": "Detroit",
            "state": "MI",
            "postal_code": "482012153",
            "country_code": "US",
            "telephone_number": "313-745-4525",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MATHUR",
        "first_name": "KARAN",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-07-11",
        "last_updated": "2026-01-09",
        "certification_date": "2026-01-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MI",
            "license": "4301501018",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Detroit, MI

Sources for this page

Verify at the official NPI Registry.