Maria Michelle Diaz, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

LT3226 Issued in NH

Practice address

1 Parkland Dr
Derry, NH 03038-2746

Phone

(603) 421-2220

Fax

(603) 421-2223

NPI assigned

May 21, 2009

Last updated

Jun 10, 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

Medicare fee-for-service enrollment

Enrolled in NH, ME, VT, MA4 enrollments

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 4

Specialty

Emergency Medicine

Education

Albert Einstein College of Medicine of Yeshiva University, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Emergency Medicine Services of NH, LLCGroup PAC ID 3173988474, 66 clinicians

York HospitalGroup PAC ID 6406766781, 202 clinicians

Bluewater Emergency Partners of Brunswick, LLCGroup PAC ID 3375774227, 151 clinicians

Springfield Hospital Inc.Group PAC ID 6507760337, 63 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Brattleboro Memorial Hospital Hospital, Brattleboro, VT, CCN 470011
• Catholic Medical Center Hospital, Manchester, NH, CCN 300034
• Springfield Hospital Hospital, Springfield, VT, CCN 471306
• York Hospital Hospital, York, ME, CCN 200020
• Mainehealth Franklin Hospital Hospital, Farmington, ME, CCN 201316

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/d9dc001d-1bc5-42f9-bd4d-eb79208fd32a/

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.

• Emergency Medicine Services of NH, LLC

  • Emergency Medicine Physician
  • Derry, NH
  • NPI 1386341444
  Medicare reassignment Care Compare group NPD
• Bluewater Emergency Partners of Brunswick, LLC

  • Emergency Medicine Physician
  • Brunswick, ME
  • NPI 1043640204

  VT

  Medicare reassignment Care Compare group NPD
• Springfield Hospital

  • Critical Access Hospital Clinic/Center
  • Springfield, VT
  • NPI 1033225875

  Emergency Medicine

  Medicare reassignment Care Compare group NPD
• York Hospital

  • General Acute Care Hospital
  • York, ME
  • NPI 1376528398
  Medicare reassignment Care Compare group NPD
• Lrghealthcare

  dba LRGH Professional Billing Services

  • Family Medicine Physician
  • Laconia, NH
  • NPI 1700976032
  Medicare reassignment NPD
• Memorial Hospital

  dba MaineHealth Memorial Hospital

  • Critical Access Hospital
  • North Conway, NH
  • NPI 1700864709
  Medicare reassignment NPD
• Brattleboro Memorial Hospital

  • General Acute Care Hospital
  • Brattleboro, VT
  • NPI 1306849708
  Medicare reassignment NPD
• Mainehealth

  dba Mainehealth Behavioral Health

  • Psychiatric Hospital
  • Westbrook, ME
  • NPI 1790265502
  Medicare reassignment NPD
• Mainehealth

  dba MaineHealth Lincoln Hospital

  • Critical Access Hospital
  • Damariscotta, ME
  • NPI 1912094806
  Medicare reassignment NPD
• Mainehealth

  dba MaineHealth Franklin Hospital

  • Critical Access Hospital
  • Farmington, ME
  • NPI 1922791417
  Medicare reassignment NPD
• Dartmouth-Hitchcock Clinic

  • Internal Medicine Physician
  • Lebanon, NH
  • NPI 1548210198
  Medicare reassignment
• Speare Memorial Hospital

  dba Speare Hospitalist Program

  • General Practice Physician
  • Plymouth, NH
  • NPI 1346402047
  Medicare reassignment

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

• Manchester Health Services, LLC

  dba Catholic Medical Center

  • General Acute Care Hospital
  • Manchester, NH
  • NPI 1972340990
  Care Compare affiliation
• Brattleboro Memorial Hospital

  • General Acute Care Hospital
  • Brattleboro, VT
  • NPI 1306849708
  Care Compare affiliation
• Mainehealth

  dba MaineHealth Franklin Hospital

  • Critical Access Hospital
  • Farmington, ME
  • NPI 1922791417
  Care Compare affiliation
• Springfield Hospital

  • Critical Access Hospital Clinic/Center
  • Springfield, VT
  • NPI 1033225875
  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": "1242864000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1013142959",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "380 LAFAYETTE RD",
            "city": "HAMPTON",
            "state": "NH",
            "postal_code": "038422222",
            "telephone_number": "603-926-0088",
            "fax_number": "603-926-2853"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 PARKLAND DR",
            "city": "DERRY",
            "state": "NH",
            "postal_code": "030382746",
            "telephone_number": "603-421-2220",
            "fax_number": "603-421-2223"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "57 Prospect St",
            "address_purpose": "LOCATION",
            "city": "Nantucket",
            "state": "MA",
            "postal_code": "025542799",
            "country_code": "US",
            "telephone_number": "508-825-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "MARIA",
        "middle_name": "MICHELLE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-05-21",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NH",
            "license": "LT3226",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MA",
            "license": "1027573",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Derry Surgery Center LP
• Derry Surgical Center, LLC (Surgical Center of New Hampshire at Derry)
• Karen M Desmarais, LCMHC
• Kate Lynn Desmond, BCBA
• Diabetes and Lifestyle Management, LLC
• Andrew Dibartolo, DPT
• Louise Dinsmore, RPH
• Thomas John Dinsmore, M.A., LCMHC
• Michael R. Dion, DMD
• Stephanie A Doherty, APRN

• Emergency Medicine Physician in Derry, NH
• Providers in Derry, NH by specialty
• Emergency Medicine Physician in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 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.