Kerstyn Zalesin, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

4301065660 Issued in MI

Practice address

4949 Coolidge Hwy
Royal Oak, MI 48073-1026

Phone

(248) 655-5900

Fax

(248) 655-5901

NPI assigned

May 10, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Specialty

Internal Medicine

Education

Wayne State University School of Medicine, 1995

Medicare assignment

May accept Medicare assignment

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Beaumont Hospital Royal Oak Hospital, Royal Oak, MI, CCN 230130
• Beaumont Hospital, Troy Hospital, Troy, MI, CCN 230269

Merit-based Incentive Payment System (MIPS)

Final score

84.37 of 100Reported as group

Quality

66.73

Promoting interoperability

100

Improvement activities

40

Cost

70.98

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kzalesin292984@epic00.shdirect.org

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.

• Beaumont Medical Group- Specialty Services

  • Surgery Physician
  • Royal Oak, MI
  • NPI 1578072906
  NPD
• Hospital Consultants, P.C.

  • Internal Medicine Physician
  • Royal Oak, MI
  • NPI 1073543013
  NPD (past)
• Southfield Internists PC

  • Internal Medicine Physician
  • Southfield, MI
  • NPI 1760573075
  NPD (past)

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

• William Beaumont Hospital

  • General Acute Care Hospital
  • Troy, MI
  • NPI 1306825997
  Care Compare affiliation
• William Beaumont Hospital

  • General Acute Care Hospital
  • Royal Oak, MI
  • NPI 1689653305
  Care Compare affiliation
• William Beaumont Hospital

  • General Acute Care Hospital
  • Grosse Pointe, MI
  • NPI 1932396017
  Care Compare affiliation

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

{
    "created_epoch": "1147219200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771891200000",
    "number": "1285683821",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26901 BEAUMONT BLVD STE 3D",
            "city": "SOUTHFIELD",
            "state": "MI",
            "postal_code": "480333849",
            "telephone_number": "947-522-1862",
            "fax_number": "947-522-0307"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4949 COOLIDGE HWY",
            "city": "ROYAL OAK",
            "state": "MI",
            "postal_code": "480731026",
            "telephone_number": "248-655-5900",
            "fax_number": "248-655-5901"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1555 South Blvd E Ste 360",
            "address_purpose": "LOCATION",
            "city": "Rochester Hills",
            "state": "MI",
            "postal_code": "483075759",
            "country_code": "US",
            "telephone_number": "248-267-5750",
            "fax_number": "248-267-5751",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZALESIN",
        "first_name": "KERSTYN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-10",
        "last_updated": "2026-02-24",
        "certification_date": "2026-02-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301065660",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Syed Zaidi, M.D.
• Erick Zak, DO
• Dana Zakalik, MD
• Karol Zakalik, MD
• Megan Elizabeth Zakar, TLLP
• Jaclyn Stephanie Zaleski
• Kristina Zalewski, MD
• Paula J Zalewski, AGPCNP-BC
• Ira Zaltz, M.D.
• Huma Zaman

• Internal Medicine Physician in Royal Oak, MI
• Providers in Royal Oak, 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 24, 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.
• 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.