NPIMap

Individual provider Active NPI

Jonathan William Seiferth, MD

  • Family Medicine Physician
  • Williamsport, PA
National Provider Identifier
1386224384
Registry record updated Sep 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
MD485993 Issued in PA
Practice address
740 High St Ste 4001
Williamsport, PA 17701-3111
Phone
(570) 321-2345
NPI assigned
Apr 13, 2021
Last updated
Sep 16, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 16, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X MD485993 PA Primary

Addresses

Primary practice location

740 High St Ste 4001
Williamsport, PA 17701-3111

Mailing address

1201 Grampian Blvd
Williamsport, PA 17701-1900
Phone (570) 326-8723

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address jseiferth226256@upmc.direct-ci.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240910004944 PA Practitioner - Family Practice 7517369192 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Susquehanna Physician ServicesGroup PAC ID 2264336460, shared by 32 NPIs, 611 clinicians
Phoenix Rehabilitation and Health Services IncGroup PAC ID 3476464298, shared by 2 NPIs, 2,775 clinicians

Practice addresses (Care Compare)

1 Outlet LN
Suite 400
Lock Haven, PA 17745-7815
Phone (570) 769-1300

175 Pine St
Suite 200
Williamsport, PA 17701-6549
Phone (570) 326-2447

2000 Westinghouse Dr
Suite 200
Cranberry Township, PA 16066-5238

740 High St
Suite 4001
Williamsport, PA 17701-3111
Phone (570) 321-2345

900 Plaza Dr
Montoursville, PA 17754-2448
Phone (570) 368-3321

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
81.06 of 100Reported as group
Quality
62.07
Promoting interoperability
100
Improvement activities
40
Cost
74.81

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD485993PAMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Susquehanna Physician Services Family Medicine Current Accepting new patients
Susquehanna Physician Services CurrentSince Sep 1, 2024 Accepting new patients
Susquehanna Physician Services Family Medicine CurrentSince Sep 1, 2024 Accepting new patients
Susquehanna Physician Services Family Medicine CurrentSince Sep 1, 2024 Accepting new patients
Susquehanna Physician Services Family Medicine CurrentSince Jun 2, 2025 Accepting new patients
Susquehanna Physician Services Family Medicine CurrentSince Sep 1, 2024 Accepting new patients

Locations

1 Outlet Ln
Ste 400
Lock Haven, PA 17745
Phone (570) 326-8080

610 High St
Lock Haven, PA 17745
Phone (570) 748-1260

900 Plaza Dr
Montoursville, PA 17754
Phone (570) 368-3321

10 Shady Ln
Ste 101
Muncy, PA 17756
Phone (570) 546-4059

1201 Grampian Blvd
Williamsport, PA 17701
Phone (570) 326-8723

175 Pine St
Ste 200
Williamsport, PA 17701
Phone (570) 326-2447

700 High St
Williamsport, PA 17701
Phone (570) 321-1000

740 High St
Ste 4001
Williamsport, PA 17701
Phone (570) 321-2345

Interoperability endpoints

  • Direct secure messaging: jseiferth226256@upmc.direct-ci.com

Organizations & group practices 6

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 34

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

View all 34

NPI Registry JSON

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

{
    "created_epoch": "1618272000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789516800000",
    "number": "1386224384",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1201 GRAMPIAN BLVD",
            "city": "WILLIAMSPORT",
            "state": "PA",
            "postal_code": "177011900",
            "telephone_number": "570-326-8723"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "740 HIGH ST STE 4001",
            "city": "WILLIAMSPORT",
            "state": "PA",
            "postal_code": "177013111",
            "telephone_number": "570-321-2345"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEIFERTH",
        "first_name": "JONATHAN",
        "middle_name": "WILLIAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-13",
        "last_updated": "2026-09-16",
        "certification_date": "2025-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "PA",
            "license": "MD485993",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jseiferth226256@upmc.direct-ci.com",
            "affiliation": "N",
            "address_1": "600 Grant St",
            "address_2": "Floor 58",
            "city": "Pittsburgh",
            "state": "PA",
            "country_code": "US",
            "postal_code": "152192702",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Williamsport, PA

Sources for this page

Verify at the official NPI Registry.