Individual provider Active NPI

Wael Dahhan, M.D.

  • Gastroenterology Physician
  • Detroit, MI
National Provider Identifier
1548618796
Registry record updated Jan 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
4301069000 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
May 28, 2016
Last updated
Jan 9, 2026By the provider in NPPES
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 2

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 4301069000 MI Primary
Gastroenterology Physician 207RG0100X ME 77577 FL

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

3601 W 13 Mile Rd
Royal Oak, MI 48073-6712
Phone (248) 898-5000

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
I20220106002835 MI Practitioner - Gastroenterology 3476944133 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Beaumont Medical Group Hospital Based ServicesGroup PAC ID 3072875889, 575 clinicians
University Physician GroupGroup PAC ID 8628087681, 399 clinicians

Practice addresses (Care Compare)

100 Michigan Ave NE
Grand Rapids, MI 49503-2560

1840 Wealthy St SE
Corewell Health Medical Group West
Grand Rapids, MI 49506-2921
Phone (616) 885-5000

3601 W 13 Mile Rd
Royal Oak, MI 48073-6712

3601 W 13 Mile Rd Ec
Beaumont Emergency Services Ro
Royal Oak, MI 48073-6712
Phone (248) 898-0575

400 Mack Ave
Suite 2
Detroit, MI 48201-2136
Phone (313) 448-9006

44201 Dequindre Rd
Troy, MI 48085-1117
Phone (248) 964-1187

44201 Dequindre Rd Ec
Beaumont Emergency Services TR
Troy, MI 48085-1117
Phone (248) 964-5111

4444 Kalamazoo Ave SE
200 Corewell Health Medical Group West
Kentwood, MI 49508-4600
Phone (616) 391-5600

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy44
Upper gastrointestinal (GI) endoscopy for acid reflux81

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
ME 77577FLMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Troy Gastroenterology PC Gastroenterology CurrentSince Aug 15, 2022 Accepting new patients
Beaumont Medical Group Hospital -Based Services CurrentSince Dec 23, 2024 Accepting new patients
University Physician Group CurrentSince Dec 13, 2022 Accepting new patients
Troy Gastroenterology, PC Gastroenterology CurrentSince Aug 15, 2022 Accepting new patients
Troy Gastroenterology, PC Current Accepting new patients
University Physician Group Past Accepting new patients

Locations

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

400 Mack Ave
Ste 2
Detroit, MI 48201
Phone (313) 448-9006

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

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

31995 Northwestern Hwy
Farmington Hills, MI 48334
Phone (248) 538-4701

1701 South Blvd E
Ste 300
Rochester Hills, MI 48307
Phone (248) 844-9710

3601 W 13 Mile Rd
Royal Oak, MI 48073

50438 Van Dyke Ave
Shelby Township, MI 48317
Phone (586) 726-8423

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

44201 Dequindre Rd
Troy, MI 48085
Phone (248) 471-8255

Interoperability endpoints

  • Direct secure messaging: wael.dahhan.1@19711.direct.athenahealth.com
  • Direct secure messaging: wael.dahhan@hca5.eclinicaldirectplus.com
  • Direct secure messaging: wdahhan794494@direct.hfhs.org

Organizations & group practices 7

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

Hospital & facility affiliations 8

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": "1464393600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767916800000",
    "number": "1548618796",
    "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": "3601 W 13 Mile Rd",
            "address_purpose": "LOCATION",
            "city": "Royal Oak",
            "state": "MI",
            "postal_code": "480736712",
            "country_code": "US",
            "telephone_number": "248-898-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DAHHAN",
        "first_name": "WAEL",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-05-28",
        "last_updated": "2026-01-09",
        "certification_date": "2026-01-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MI",
            "license": "4301069000",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "FL",
            "license": "ME 77577",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Detroit, MI

Sources for this page

Verify at the official NPI Registry.