Benjamin Gersten

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

1491 Issued in NH

Practice address

605 Lafayette Rd
Portsmouth, NH 03801-4783

Phone

(603) 658-2344

Fax

(603) 658-2355

NPI assigned

Jan 15, 2019

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

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

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
• Portsmouth Regional Hospital Hospital, Portsmouth, NH, CCN 300029
• Wentworth-Douglass Hospital Hospital, Dover, NH, CCN 300018
• York Hospital Hospital, York, ME, CCN 200020

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

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: bgersten507252@direct.bilh.masshiway.net

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
  Medicare reassignment Care Compare group NPD
• Dartmouth-Hitchcock Clinic

  • Internal Medicine Physician
  • Lebanon, NH
  • NPI 1548210198
  Medicare reassignment 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
• HCA Health Services of New Hampshire Inc

  dba Portsmouth Regional Hospital

  • General Acute Care Hospital
  • Portsmouth, NH
  • NPI 1518913607
  Care Compare affiliation
• Wentworth Douglass Hospital

  • General Acute Care Hospital
  • Dover, NH
  • NPI 1033118104
  Care Compare affiliation
• Wentworth Douglass Hospital

  • Diabetes Educator Registered Nurse
  • Dover, NH
  • NPI 1407385198

  Hospital

  Care Compare affiliation
• York Hospital

  • General Acute Care Hospital
  • York, ME
  • NPI 1376528398
  Care Compare affiliation

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

{
    "created_epoch": "1547510400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760572800000",
    "number": "1154895951",
    "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": "603-658-2344",
            "fax_number": "603-658-2355"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "605 LAFAYETTE RD",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038014783",
            "telephone_number": "603-658-2344",
            "fax_number": "603-658-2355"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GERSTEN",
        "first_name": "BENJAMIN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-01-15",
        "last_updated": "2025-10-16",
        "certification_date": "2025-10-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NH",
            "license": "1491",
            "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": []
}

• Geoffrey E. Starr, M.D., P.C.
• Elizabeth Jean George, MD
• Faith O'Sullivan George, RBT
• Abigail Gerbino
• Hannah Gershfield
• Christopher R Getchell, DMD
• Jade Gibbons, LICSW
• Sarah Jane Gibbons, MD
• Kyungran Gibson, PA-C
• Philip Gibson

• Physician Assistant in Portsmouth, NH
• Providers in Portsmouth, NH by specialty
• Physician Assistant 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.