Akashdeep Singh Grewal, MD

Primary specialty

Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X

License

4351051779 Issued in MI

Practice address

3711 W 13 Mile Rd
Royal Oak, MI 48073-6767

Phone

(248) 551-6489

NPI assigned

Apr 18, 2023

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• William Beaumont Hospital

  • General Acute Care Hospital
  • Grosse Pointe, MI
  • NPI 1932396017
  NPD (past)

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

{
    "created_epoch": "1681776000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782691200000",
    "number": "1427745785",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3711 W 13 MILE RD",
            "city": "ROYAL OAK",
            "state": "MI",
            "postal_code": "480736767",
            "telephone_number": "248-551-6489"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3711 W 13 MILE RD",
            "city": "ROYAL OAK",
            "state": "MI",
            "postal_code": "480736767",
            "telephone_number": "248-551-6489"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREWAL",
        "first_name": "AKASHDEEP",
        "middle_name": "SINGH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-04-18",
        "last_updated": "2026-06-29",
        "certification_date": "2026-06-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "MI",
            "license": "4351051779",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sylwester Grega
• Gregg a Pizzi Psy D & Associates PLLC
• Shelby Gregg
• Lara Grether, MS
• Cristina Greulich, MD
• Prabhjot Kaur Grewal, MD
• Sarina Grewe, LMSW
• John Grgicak, D.C.
• Katherine Grierson
• Amanda Griffith, ACNP-BC

• Sleep Medicine (Internal Medicine) Physician in Royal Oak, MI
• Providers in Royal Oak, MI by specialty
• Sleep Medicine (Internal Medicine) Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.