Alissa Whittaker, FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

71004885A Issued in IN

Practice address

113 N Michigan St
Plymouth, IN 46563-2132

Phone

(574) 936-2643

Fax

(574) 540-4001

NPI assigned

Dec 6, 2013

Last updated

Nov 5, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in IN

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Diagnostic Medicine P.C.Group PAC ID 5890161756, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Saint Joseph Regional Medical Center - Plymouth Hospital, Plymouth, IN, CCN 150076

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: alissa.whittaker.1@27173.direct.athenahealth.com

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.

• Diagnostic Medicine P.C.

  • Critical Care Medicine (Internal Medicine) Physician
  • Plymouth, IN
  • NPI 1255439022
  Medicare reassignment Care Compare group NPD
• Bowen Health Inc

  dba Otis R Bowen Center

  • Adult Mental Health Clinic/Center
  • Warsaw, IN
  • NPI 1639172810
  Medicare reassignment NPD
• Bowen Health Inc

  • Federally Qualified Health Center (FQHC)
  • Fort Wayne, IN
  • NPI 1023668183
  NPD
• Saint Joseph Regional Medical Center- Plymouth Campus Inc

  dba Saint Joseph Foot and Ankle Sports Medicine Institute Plymouth

  • Family Medicine Physician
  • Plymouth, IN
  • NPI 1538585187
  NPD (past)

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

• Saint Joseph Regional Medical Center- Plymouth Campus Inc

  • General Acute Care Hospital
  • Plymouth, IN
  • NPI 1174571129
  Care Compare affiliation

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

{
    "created_epoch": "1386288000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762300800000",
    "number": "1033540638",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "113 N MICHIGAN ST",
            "city": "PLYMOUTH",
            "state": "IN",
            "postal_code": "465632132",
            "telephone_number": "574-936-2643",
            "fax_number": "574-540-4001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "113 N MICHIGAN ST",
            "city": "PLYMOUTH",
            "state": "IN",
            "postal_code": "465632132",
            "telephone_number": "574-936-2643",
            "fax_number": "574-540-4001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WHITTAKER",
        "first_name": "ALISSA",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-12-06",
        "last_updated": "2025-11-05",
        "certification_date": "2025-11-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IN",
            "license": "71004885A",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IN",
            "license": "28186867A",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201222850",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "FNP",
            "identifier": "IN5586003",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Amber Whalbring
• Pamela Ann Whisman, MSW, LSW
• Josanee White, RBT
• Karastan White
• Kieran White
• Kristine Williams
• Rachel Williams, MSW, LSW
• Grant Thomas Wilson
• Sonny Windhorst
• Steven N Wolff, RPH

• Family Nurse Practitioner in Plymouth, IN
• Providers in Plymouth, IN by specialty
• Family Nurse Practitioner in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 5, 2025; 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.