Cynthia Mackey, N.P.

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

080921-23 Issued in NH

Practice address

3 Alumni Dr Ste 101
Exeter, NH 03833-2122

Phone

(603) 773-9992

Fax

(603) 778-6393

NPI assigned

Nov 1, 2013

Last updated

Feb 5, 2026By the provider in NPPES

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

Other identifiers 1

Other names 1

• Cynthia Miers Former name

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

Nurse Practitioner

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Wentworth Douglass Physician CorporationGroup PAC ID 5496749848, 429 clinicians

Core Physicians LLCGroup PAC ID 2769563253, 290 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Exeter Hospital Inc Hospital, Exeter, NH, CCN 300023
• Wentworth-Douglass Hospital Hospital, Dover, NH, CCN 300018

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: miers.cynthia.wdh@direct.partners.masshiway.net

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.

• Core Physicians, LLC

  • Family Medicine Physician
  • Exeter, NH
  • NPI 1336330588
  Medicare reassignment Care Compare group NPD
• Wentworth Douglass Physician Corporation

  • Magnetic Resonance Imaging Radiologic Technologist
  • Dover, NH
  • NPI 1447352430
  Medicare reassignment Care Compare group NPD
• Core Physicians LLC

  dba Core Podiatry

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

  • General Acute Care Hospital
  • Portsmouth, NH
  • NPI 1528687829
  NPD
• Wentworth Douglass Physician Corporation

  • Diagnostic Radiology Physician
  • Somersworth, NH
  • NPI 1295326494
  NPD
• Beth Israel Deaconess Medical Center, Inc.

  • Ambulance
  • Boston, MA
  • NPI 1518600501
  NPD
• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Emergency Medicine - HMFP at BIDMC

  • Emergency Medicine Physician
  • Boston, MA
  • NPI 1316987993
  NPD
• Winchester Physician Associates, Inc

  • Internal Medicine Physician
  • Winchester, MA
  • NPI 1184606865
  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
• 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

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

{
    "created_epoch": "1383264000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1730518648",
    "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": "603-773-9992",
            "fax_number": "603-778-6393"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3 ALUMNI DR STE 101",
            "city": "EXETER",
            "state": "NH",
            "postal_code": "038332122",
            "telephone_number": "603-773-9992",
            "fax_number": "603-778-6393"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACKEY",
        "first_name": "CYNTHIA",
        "name_prefix": "Ms.",
        "credential": "N.P.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-11-01",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "NH",
            "license": "080921-23",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NH",
            "license": "080921-23",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3118836",
            "state": "NH"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "CYNTHIA",
            "last_name": "MIERS",
            "credential": "APRN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Diana Lyell I, PA
• Elizabeth A. Lynch, MD
• Jessica C. Lyons, M.S
• Kendra E Macbride, PT
• Rebecca Macdougall
• Shantal Macwhinnie, PHARMD
• Anne B Madden, APRN
• Richard Madden, PTA
• Anne O Magauran, M.D.
• Kimberly A Maguire, PT

• Family Nurse Practitioner in Exeter, NH
• Providers in Exeter, NH by specialty
• Family Nurse Practitioner in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 5, 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.