Individual provider Active NPI

Marystuart D Seifarth, CRNP, BSN, MSN

  • Family Nurse Practitioner
  • Waynesboro, PA
National Provider Identifier
1225494099
Registry record updated Jul 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
SP015832 Issued in PA
Practice address
501 E Main St
Waynesboro, PA 17268-2353
Phone
(717) 765-3648
Fax
(717) 765-3647
NPI assigned
Jan 11, 2016
Last updated
Jul 21, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 21, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X SP015832 PA Primary

Addresses

Primary practice location

501 E Main St
Waynesboro, PA 17268-2353

Mailing address

601 Memory LN
York, PA 17402-2231
Phone (717) 851-1405

Other practice location 1

2350 Freedom Way Ste 200
York, PA 17402-8200
Phone (717) 812-5120

Other practice location 2

24 Antrim Commons Dr
Greencastle, PA 17225-1623
Phone (717) 765-3648

Other identifiers 3

IdentifierTypeStateIssuer
1007307260043OtherPAMEDICAID GROUP #
103090309MedicaidPA
867633OtherPAGROUP MEDICARE #

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20160404001908 PA Practitioner - Nurse Practitioner 3072810191 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Wellspan Medical GroupGroup PAC ID 1951213115, 2,438 clinicians

Practice addresses (Care Compare)

24 Antrim Commons Dr
Greencastle, PA 17225-1623
Phone (717) 255-0157

25 Monument Rd
York, PA 17403-5073

2618 E Market St
Autumn House
York, PA 17403
Phone (717) 845-7214

501 E Main St
Waynesboro, PA 17268-2353

914 W Market St
Autumn House West
York, PA 17403
Phone (717) 845-7214

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Bachelor on Science - Nursing, Master of Science - Nursing, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
SP015832PAMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Wellspan Medical Group CurrentSince Jan 1, 2024 Accepting new patients
Wellspan Medical Group CurrentSince Jan 1, 2024 Accepting new patients
Wellspan Medical Group Current Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

24 Antrim Commons Dr
Greencastle, PA 17225
Phone (717) 593-0512

501 E Main St
Waynesboro, PA 17268
Phone (717) 765-3400

1600 S George St
York, PA 17403
Phone (717) 848-3615

25 Monument Rd
Ste 270
York, PA 17403
Phone (717) 741-8250

601 Memory Ln
York, PA 17402
Phone (717) 851-6670

Interoperability endpoints

  • Direct secure messaging: mseifarth225873@wellspan.direct-ci.com

Organizations & group practices 4

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.

Hospital & facility affiliations 7

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

NPI Registry JSON

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

{
    "created_epoch": "1452470400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784592000000",
    "number": "1225494099",
    "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": "501 E MAIN ST",
            "city": "WAYNESBORO",
            "state": "PA",
            "postal_code": "172682353",
            "telephone_number": "717-765-3648",
            "fax_number": "717-765-3647"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2350 Freedom Way Ste 200",
            "address_purpose": "LOCATION",
            "city": "York",
            "state": "PA",
            "postal_code": "174028200",
            "country_code": "US",
            "telephone_number": "717-812-5120",
            "fax_number": "717-741-3075",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "24 Antrim Commons Dr",
            "address_purpose": "LOCATION",
            "city": "Greencastle",
            "state": "PA",
            "postal_code": "172251623",
            "country_code": "US",
            "telephone_number": "717-765-3648",
            "fax_number": "717-765-3647",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SEIFARTH",
        "first_name": "MARYSTUART",
        "middle_name": "D",
        "credential": "CRNP, BSN, MSN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-01-11",
        "last_updated": "2026-07-21",
        "certification_date": "2026-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "PA",
            "license": "SP015832",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAID GROUP #",
            "identifier": "1007307260043",
            "state": "PA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "103090309",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP MEDICARE #",
            "identifier": "867633",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Waynesboro, PA

Sources for this page

Verify at the official NPI Registry.