Clarkston Internal Medicine, P.C.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

4301050183 Issued in MI

Legal business name

CLARKSTON INTERNAL MEDICINE, P.C.

Practice address

7188 N Main St
Clarkston, MI 48346-1571

Phone

(248) 625-1600

Fax

(248) 625-0239

NPI assigned

Mar 2, 2007

Last updated

Feb 16, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Dr. Bashar OkkaNPI 1942210299

Title

Owner

Phone

(248) 625-1600

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

Enrollment records 1

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Member organizations 1

Organizations listed as members of this organization in the National Provider Directory.

• Independence Urgent Care

  • Urgent Care Clinic/Center
  • Clarkston, MI
  • NPI 1215269618

  Member Of

  NPD member

Locations

Practitioners 20

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Bashar Okka, MD

  • Internal Medicine Physician
  • Clarkston, MI
  • NPI 1942210299
  Medicare reassignment Care Compare group NPD Authorized official
• Nathan Barton Chase, M.D.

  • Internal Medicine Physician
  • Clarkston, MI
  • NPI 1174533491
  Medicare reassignment Care Compare group NPD
• Megan Clemence, NP-C

  • Family Nurse Practitioner
  • Clarkston, MI
  • NPI 1457911281
  Medicare reassignment Care Compare group NPD
• Chirine El Mokdad, MD

  • Internal Medicine Physician
  • Clarkston, MI
  • NPI 1578054573
  Medicare reassignment Care Compare group NPD
• Maan Ekkah

  • Family Medicine Physician
  • Pontiac, MI
  • NPI 1962632042

  Internal Medicine

  Medicare reassignment NPD
• Laura Holt, FNP-BC

  • Family Nurse Practitioner
  • Oxford, MI
  • NPI 1497153159
  Medicare reassignment NPD
• Rosa Mirijanian, MD

  • Internal Medicine Physician
  • Clarkston, MI
  • NPI 1174533400
  Medicare reassignment NPD
• Adrienne Francine Nalu, NP-C

  • Family Nurse Practitioner
  • Troy, MI
  • NPI 1235511080
  Medicare reassignment NPD
• Fadi Alali, M.D

  • Gastroenterology Physician
  • Jackson, MI
  • NPI 1104073022

  Single Specialty

  NPD
• Caitlin Flynn Habib, DO

  • Internal Medicine Physician
  • Bloomfield Hills, MI
  • NPI 1699331215
  NPD
• Marygrace Therese Hayden

  • Physician Assistant
  • Clarkston, MI
  • NPI 1487243630
  NPD
• Nabeel Rizvi, M.D.

  • Internal Medicine Physician
  • Detroit, MI
  • NPI 1104273879
  NPD

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

{
    "created_epoch": "1172793600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771200000000",
    "number": "1417085085",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7188 N MAIN ST",
            "city": "CLARKSTON",
            "state": "MI",
            "postal_code": "483461571",
            "telephone_number": "248-625-1600",
            "fax_number": "248-625-0239"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7188 N MAIN ST",
            "city": "CLARKSTON",
            "state": "MI",
            "postal_code": "483461571",
            "telephone_number": "248-625-1600",
            "fax_number": "248-625-0239"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CLARKSTON INTERNAL MEDICINE, P.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-03-02",
        "last_updated": "2026-02-16",
        "certification_date": "2026-02-16",
        "status": "A",
        "authorized_official_last_name": "OKKA",
        "authorized_official_first_name": "BASHAR",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "248-625-1600",
        "authorized_official_name_prefix": "Dr."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301050183",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Clarkston Dental Care
• Clarkston Dermatology & Vein Center PLLC
• Clarkston Family Dental
• Clarkston Family Therapists LLC
• Clarkston Health Center
• Clarkston Lakes Family Medicine LLC
• Clarkston Medical Clinic PC
• Clarkston Oaks Family Dentistry
• Clarkston Opco LLC (Villa at Pine Place)
• Clarkston Operating Company LLC (Clarkston Specialty Healthcare Center)

• Internal Medicine Physician in Clarkston, MI
• Providers in Clarkston, MI by specialty
• Internal Medicine Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.