Individual provider Active NPI

John M Riddell, MD

  • Anesthesiology Physician
  • Concord, NH
National Provider Identifier
1174593073
Registry record updated Dec 31, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
14640 Issued in NH
Practice address
250 Pleasant St.
Concord, NH 03301-7559
Phone
(603) 789-9103
Fax
(603) 227-7832
NPI assigned
Jan 24, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 31, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 228118 NY
Anesthesiology Physician 207L00000X 14640 NH Primary

Addresses

Primary practice location

250 Pleasant St.
Concord, NH 03301-7559

Mailing address

250 Pleasant St
Concord, NH 03301-7559
Phone (603) 789-9103

Other practice location 1

1 Medical Center Dr
DHMC Department of Anesthesiology
Lebanon, NH 03756-1000
Phone (603) 650-5922

Other practice location 2

80 Highland St
Laconia, NH 03246-3235
Phone (603) 789-9103

Other practice location 3

60 Commercial St Ste 201
Concord, NH 03301-5096
Phone (603) 789-9103

Other identifiers 3

IdentifierTypeStateIssuer
1016847MedicaidVT
02394943MedicaidNY
30209066MedicaidNH

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NH, MA2 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 2

Enrollment IDStateProvider typePAC IDDetails
I20091123000444 NH Practitioner - Anesthesiology 2668523002 Reassigns benefits to 9 organizations
I20131001000082 MA Practitioner - Anesthesiology 2668523002 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Medical College of Wisconsin, 1999
Medicare assignment
May accept Medicare assignment
Group practices
Anesthesia Associates of New England PC 14 clinicians
Dartmouth-Hitchcock Clinic 1,445 clinicians
Emerson Endoscopy and Digestive Health Center, LLC 12 clinicians

Practice addresses (Care Compare)

1 Parkland Dr
Derry, NH 03038-2746
Phone (603) 432-1500

2300 Southwood Dr
Nashua, NH 03063-1818
Phone (603) 577-4070

310 Baker Ave
Suite 175a
Concord, MA 01742-2140
Phone (978) 776-1710

Hospital & facility affiliations

  • Parkland Medical Center Hospital, Derry, NH, CCN 300017

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
14640NHMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
North American Partners in Anesthesia Massachusetts LLC Anesthesiology CurrentSince Apr 1, 2018 Accepting new patients
Dartmouth-Hitchcock Clinic CurrentSince Apr 16, 2024 Accepting new patients
Emerson Endoscopy and Digestive Health Center, LLC CurrentSince Nov 27, 2024 Accepting new patients
Concord Hospital, Inc. Current Accepting new patients
Steward Medical Group, Inc CurrentSince Oct 14, 2023 Accepting new patients
Concord Hospital, Inc. CurrentSince Jan 1, 2024 Accepting new patients
Mary Hitchcock Memorial Hospital CurrentSince Oct 3, 2024 Accepting new patients
Emerson Endoscopy and Digestive Health Center, LLC Anesthesiology CurrentSince Nov 27, 2024 Accepting new patients
Anesthesia Associates of New England PC Anesthesiology CurrentSince Jun 1, 2025 Accepting new patients
Mass General Brigham Medical Group, Inc. Anesthesiology CurrentSince Sep 2, 2025 Accepting new patients
Concord Hospital, Inc. CurrentSince Jan 1, 2024 Accepting new patients
Dartmouth-Hitchcock Clinic Anesthesiology CurrentSince Apr 16, 2024 Accepting new patients
Anesthesia Associates Professional Association Anesthesiology CurrentSince Jan 8, 2022 Accepting new patients
Hospitalist Medicine Physicians of New York - Patchogue PC Anesthesiology CurrentSince Oct 16, 2023 Accepting new patients
North American Partners in Anesthesia New Hampshire LLP Anesthesiology CurrentSince Jan 14, 2018 Accepting new patients
Skyline Anesthesia PLLC Anesthesiology CurrentSince Nov 3, 2024 Accepting new patients
Steward Medical Group, Inc Anesthesiology CurrentSince Oct 14, 2023 Accepting new patients
Mary Hitchcock Memorial Hospital CurrentSince Oct 3, 2024 Accepting new patients
Cayuga Anesthesia Associates, PLLC Anesthesiology Past Accepting new patients

Locations

138 Haverhill St
Andover, MA 01810
Phone (978) 296-2302

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

55 Fruit St
Boston, MA 02114

310 Baker Ave
Ste 175A
Concord, MA 01742
Phone (978) 776-1710

363 Highland Ave
Fall River, MA 02720
Phone (508) 679-7052

300D Faunce Corner Rd
North Dartmouth, MA 02747
Phone (508) 998-6683

250 Pleasant St
Concord, NH 03301
Phone (603) 225-2711

60 Commercial St
Ste 201
Concord, NH 03301
Phone (603) 789-9103

246 Pleasant St
Concord, NH 03301
Phone (603) 224-1223

1 Parkland Dr
Derry, NH 03038
Phone (603) 421-2220

80 Highland St
Laconia, NH 03246
Phone (603) 527-7100

80 Highland St
Ste 2
Laconia, NH 03246

1 Medical Dr
Lebanon, NH 03756
Phone (603) 650-5922

100 Hitchcock Way
Manchester, NH 03104
Phone (603) 629-1870

10 Prospect St
Ste 101
Nashua, NH 03060
Phone (603) 578-9909

41 Innovative Way
Nashua, NH 03062
Phone (603) 484-7710

2300 Southwood Dr
Nashua, NH 03063
Phone (603) 577-4170

8 Prospect St
Nashua, NH 03060
Phone (603) 281-9275

11 Whitehall Rd
Rochester, NH 03867
Phone (603) 330-7905

30 Tuscan Blvd
Salem, NH 03079
Phone (857) 282-8100

68 S Service Rd
Ste 350
Melville, NY 11747
Phone (516) 945-3107

Interoperability endpoints

  • Direct secure messaging: jriddell15964@direct.dartmouth-hitchcock.org
  • Direct secure messaging: jriddell42974@direct.southcoast.org

Organizations & group practices 20

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.

View all 20

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1138060800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1703980800000",
    "number": "1174593073",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 PLEASANT ST",
            "city": "CONCORD",
            "state": "NH",
            "postal_code": "033017559",
            "telephone_number": "603-789-9103",
            "fax_number": "603-227-7832"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 PLEASANT ST.",
            "city": "CONCORD",
            "state": "NH",
            "postal_code": "033017559",
            "telephone_number": "603-789-9103",
            "fax_number": "603-227-7832"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Medical Center Dr",
            "address_2": "DHMC Department of Anesthesiology",
            "address_purpose": "LOCATION",
            "city": "Lebanon",
            "state": "NH",
            "postal_code": "037561000",
            "country_code": "US",
            "telephone_number": "603-650-5922",
            "fax_number": "603-650-8980",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "80 Highland St",
            "address_purpose": "LOCATION",
            "city": "Laconia",
            "state": "NH",
            "postal_code": "032463235",
            "country_code": "US",
            "telephone_number": "603-789-9103",
            "fax_number": "603-227-7832",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "60 Commercial St Ste 201",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "NH",
            "postal_code": "033015096",
            "country_code": "US",
            "telephone_number": "603-789-9103",
            "fax_number": "603-227-7832",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RIDDELL",
        "first_name": "JOHN",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-24",
        "last_updated": "2023-12-31",
        "certification_date": "2023-12-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "228118",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NH",
            "license": "14640",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1016847",
            "state": "VT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02394943",
            "state": "NY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "30209066",
            "state": "NH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Concord, NH

Sources for this page

Verify at the official NPI Registry.