Caitlin Ruth Klein, NP

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

4704242813 Issued in MI

Practice address

4673 Washtenaw Ave
Ann Arbor, MI 48108-1301

Phone

(734) 547-5009

Fax

(734) 215-1231

NPI assigned

Jul 21, 2025

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

Enrolled in MI

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, 2024

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

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.

• Packard Health, Inc.

  • Clinic/Center
  • Ann Arbor, MI
  • NPI 1609988245
  Medicare reassignment

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

{
    "created_epoch": "1753056000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753056000000",
    "number": "1659263978",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1516 MORTON AVE",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481044439",
            "telephone_number": "734-717-9388"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4673 WASHTENAW AVE",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481081301",
            "telephone_number": "734-547-5009",
            "fax_number": "734-215-1231"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLEIN",
        "first_name": "CAITLIN",
        "middle_name": "RUTH",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-07-21",
        "last_updated": "2025-07-21",
        "certification_date": "2025-07-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MI",
            "license": "4704242813",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Celina G Kleer, MD
• Nestor Aldo Kleer, MD
• Paula Dianne Kleimola, RN
• Lori Klein-Shapiro, LMSW
• Angela Nicole Klein, RN
• David B. Klein, PH.D.
• Jennifer Michelle Klein, LLMSW
• Jo Klein, PT
• Katherine A Klein, MD
• Kristin C Klein, PHARMD

• Adult Health Nurse Practitioner in Ann Arbor, MI
• Providers in Ann Arbor, MI by specialty
• Adult Health Nurse Practitioner in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 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.