John Zerfing, CRNP

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

SP022606 Issued in PA

Practice address

25 Monument Rd Ste 294
York, PA 17403-5049

Phone

(717) 741-9229

NPI assigned

Oct 13, 2020

Last updated

Apr 29, 2026By the provider in NPPES

Sex

Male

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 PA

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, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cancer Care Associates of York, Inc.Group PAC ID 1456336726, 15 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Wellspan York Hospital Hospital, York, PA, CCN 390046
• Gettysburg Hospital Hospital, Gettysburg, PA, CCN 390065

Merit-based Incentive Payment System (MIPS)

Final score

94.66 of 100Reported as group

Quality

100

Promoting interoperability

100

Improvement activities

40

Cost

65.52

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jzerfing274282@wellspan.direct-ci.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.

• Cancer Care Associates of York, Inc.

  • Specialist
  • York, PA
  • NPI 1578587101
  Medicare reassignment Care Compare group NPD

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

• The Gettysburg Hospital

  dba WellSpan Gettysburg Hospital SPU

  • Ambulatory Surgical Clinic/Center
  • Gettysburg, PA
  • NPI 1184882011

  Hospital

  Care Compare affiliation
• The Gettysburg Hospital

  • General Acute Care Hospital
  • Gettysburg, PA
  • NPI 1265466957
  Care Compare affiliation
• York Hospital

  • General Acute Care Hospital
  • York, PA
  • NPI 1326060492
  Care Compare affiliation
• York Hospital

  dba York Hospital Community Health Center

  • Clinic/Center
  • York, PA
  • NPI 1497814040

  Hospital

  Care Compare affiliation
• York Hospital

  dba WellSpan York Hospital OB/GYN

  • Clinic/Center
  • York, PA
  • NPI 1609112036

  Hospital

  Care Compare affiliation
• York Hospital

  • Family Medicine Physician
  • York, PA
  • NPI 1881617132

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1602547200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777420800000",
    "number": "1992303895",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "601 MEMORY LN",
            "city": "YORK",
            "state": "PA",
            "postal_code": "174022231",
            "telephone_number": "717-851-1405"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "25 MONUMENT RD STE 294",
            "city": "YORK",
            "state": "PA",
            "postal_code": "174035049",
            "telephone_number": "717-741-9229"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZERFING",
        "first_name": "JOHN",
        "credential": "CRNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-10-13",
        "last_updated": "2026-04-29",
        "certification_date": "2026-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "PA",
            "license": "SP022606",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Blossom Ann Zell, M.ED
• Cassidy Zeller
• Tanya L Zelwalk, MA/LBS
• Kerry R Zema, A.T.C.
• John Calvin Zepp IV, DO
• Zero MC LLC (York Accident & Injury)
• Wubnew E Zewdie, MD
• Hong Zhang, ACUPUNCTURIST
• Miaoqi Zhang, DO
• Yi Zhou, M.D.

• Adult Health Nurse Practitioner in York, PA
• Providers in York, PA by specialty
• Adult Health Nurse Practitioner in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 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.