Sarah Natasha Jost-Haynes, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

25528 Issued in NH

Practice address

3 Alumni Dr Ste 401
Exeter, NH 03833-2123

Phone

(603) 778-0557

Fax

(603) 778-1669

NPI assigned

Mar 24, 2020

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NH

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Obstetrics/Gynecology

Education

University of Vermont College of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Core Physicians LLCGroup PAC ID 2769563253, 290 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Exeter Hospital Inc Hospital, Exeter, NH, CCN 300023

Merit-based Incentive Payment System (MIPS)

Final score

86.36 of 100Reported as apm

Quality

85.92

Promoting interoperability

78

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: sjosthaynes507153@direct.bilh.masshiway.net
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Core Physicians, LLC

  • Family Medicine Physician
  • Exeter, NH
  • NPI 1336330588

  Obstetrics & Gynecology

  Medicare reassignment Care Compare group NPD
• Core Physicians LLC

  dba Core Podiatry

  • Durable Medical Equipment & Medical Supplies
  • Raymond, NH
  • NPI 1083085724
  NPD

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

• Exeter Hospital Inc

  • General Acute Care Hospital
  • Exeter, NH
  • NPI 1437158433
  Care Compare affiliation

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

{
    "created_epoch": "1585008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760572800000",
    "number": "1295362853",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4 ALUMNI DR",
            "city": "EXETER",
            "state": "NH",
            "postal_code": "038332118",
            "telephone_number": "603-778-0557",
            "fax_number": "603-778-1669"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3 ALUMNI DR STE 401",
            "city": "EXETER",
            "state": "NH",
            "postal_code": "038332123",
            "telephone_number": "603-778-0557",
            "fax_number": "603-778-1669"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOST-HAYNES",
        "first_name": "SARAH",
        "middle_name": "NATASHA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-24",
        "last_updated": "2025-10-16",
        "certification_date": "2025-10-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NH",
            "license": "25528",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Deborah Jordan, LICSW
• Wendy Jordan, IBCLC
• Steve A Joselow, M.D.
• Mary L Joseph, M.D.
• Mark Josephs, MD
• Julie Marsden, PSYD
• Cullen Jumper, M.D.
• Joshua F Kahane, M.D.
• Julia Kahane
• Heather B Kaiser, PA

• Obstetrics & Gynecology Physician in Exeter, NH
• Providers in Exeter, NH by specialty
• Obstetrics & Gynecology Physician in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 16, 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.