William Daniel Pfeifer Sr., D.C.

Primary specialty

Rehabilitation ChiropractorTaxonomy code 111NR0400X

License

738 Issued in AK

Practice address

2901 Baranof Ave
Ketchikan, AK 99901-5765

Phone

(907) 225-9090

Fax

(907) 225-9001

NPI assigned

Feb 20, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in AK

Enrollment records 1

Specialty

Chiropractic

Education

Palmer College Chiropractic - Davenport, 1982

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Peacehealth Ketchikan Medical Center Hospital, Ketchikan, AK, CCN 021311

Medicare enrollment (NPD)

Enrolled

State licenses

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

• Peacehealth

  • Critical Access Hospital
  • Ketchikan, AK
  • NPI 1396705539
  Care Compare affiliation

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

{
    "created_epoch": "1171929600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1487799235",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2901 BARANOF AVE",
            "city": "KETCHIKAN",
            "state": "AK",
            "postal_code": "999015765",
            "telephone_number": "907-225-9090",
            "fax_number": "907-225-9001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2901 BARANOF AVE",
            "city": "KETCHIKAN",
            "state": "AK",
            "postal_code": "999015765",
            "telephone_number": "907-225-9090",
            "fax_number": "907-225-9001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PFEIFER",
        "first_name": "WILLIAM",
        "middle_name": "DANIEL",
        "name_prefix": "Dr.",
        "name_suffix": "Sr.",
        "credential": "D.C.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-02-20",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "AK",
            "license": "156",
            "primary": false
        },
        {
            "code": "111NR0400X",
            "taxonomy_group": "",
            "desc": "Chiropractor, Rehabilitation",
            "state": "AK",
            "license": "738",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "CH0033",
            "state": "AK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Haley Marie Petersen
• William Peterson
• Benjamin Petiprin
• Rachel Petiprin, LCSW
• Mary Lorene Pfeifer, D.C.
• Evan Phillips
• Abel Piercy
• Jacob Pignone, PHARM. D
• Arne Robert Pihl, DMD
• Jessica Rae Pilcher, NP

• Rehabilitation Chiropractor in Ketchikan, AK
• Providers in Ketchikan, AK by specialty
• Rehabilitation Chiropractor in Alaska

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.