Individual provider Active NPI

Anastasios Konstantakos, MD

  • Surgery Physician
  • Concord, NH
National Provider Identifier
1902892110
Registry record updated Sep 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
35007 Issued in NH
Practice address
246 Pleasant St
Concord, NH 03301-2548
Phone
(603) 224-1725
Fax
(603) 227-7557
NPI assigned
Sep 22, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 16, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 35007 NH Primary
Surgery Physician 208600000X 11339 MT

Addresses

Primary practice location

246 Pleasant St
Concord, NH 03301-2548

Mailing address

250 Pleasant St
Concord, NH 03301-2598
Phone (603) 227-7000

Other practice location 1

319 S Manning Blvd Ste 110A
Albany, NY 12208-1743
Phone (518) 525-2525

Other identifiers 2

IdentifierTypeStateIssuer
124057900OtherMTMDCD PIN
000097436OtherMTBCBS PIN

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address akonstantakos@crhc.cernerdirect.com Direct
Direct Messaging Address payer.credentialing@sphp.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL, MA, NY, NH4 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

Enrollment IDStateProvider typePAC IDDetails
I20180809004146 IL Practitioner - Thoracic SurgeryPractitioner - General Surgery 4082614854 Reassigns benefits to 1 organization
I20200903001249 MA Practitioner - Cardiac Surgery 4082614854 Reassigns benefits to 1 organization
I20220916001242 NY Practitioner - Thoracic Surgery 4082614854 Reassigns benefits to 2 organizations
I20250901000269 NH Practitioner - Thoracic Surgery 4082614854 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Thoracic Surgery
Education
University of Miami, LM Miller School of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Concord Hospital IncGroup PAC ID 6103721790, 572 clinicians

Practice addresses (Care Compare)

246 Pleasant St
Concord, NH 03301-2548
Phone (603) 224-6070

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Coronary artery bypass graft (CABG)1-10
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
11339MTMDSurgery Physician
35007NHMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Concord Hospital, Inc. Current Accepting new patients
Rockford Health Physicians CurrentSince Jun 20, 2018 Accepting new patients
Concord Hospital, Inc. CurrentSince Aug 19, 2025 Accepting new patients
Ellis Hospital CurrentSince Nov 8, 2024 Accepting new patients
Brigham & Womens Physicians Organization Inc CurrentSince Jul 9, 2020 Accepting new patients
St. Peter'S Health Partners Medical Associates, P.C. CurrentSince Sep 26, 2022 Accepting new patients
Concord Hospital, Inc. CurrentSince Aug 19, 2025 Accepting new patients
St. Peter'S Hospital of the City of Albany Past Accepting new patients
Frances Mahon Deaconess Hospital Past Accepting new patients
Brigham and Womens Physicians Organization Inc Surgery Past Accepting new patients

Locations

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

2300 N Rockton Ave
Rockford, IL 61103
Phone (815) 971-5510

2400 N Rockton Ave
Rockford, IL 61103
Phone (815) 971-6310

75 Francis St
Boston, MA 02115

254 2nd Ave
Ste 100
Needham Heights, MA 02494
Phone (781) 416-8412

246 Pleasant St
Bldg W
Concord, NH 03301
Phone (603) 224-3388

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

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

319 S Manning Blvd
Ste 110A
Albany, NY 12208
Phone (518) 525-2525

1101 Nott St
Schenectady, NY 12308
Phone (518) 243-1916

2 New Hampshire Ave
Troy, NY 12180
Phone (518) 272-0331

Interoperability endpoints

  • Direct secure messaging: akonstantakos2175029@direct.trinity-health.org

Organizations & group practices 10

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.

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": "1127347200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757980800000",
    "number": "1902892110",
    "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": "033012598",
            "telephone_number": "603-227-7000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "246 PLEASANT ST",
            "city": "CONCORD",
            "state": "NH",
            "postal_code": "033012548",
            "telephone_number": "603-224-1725",
            "fax_number": "603-227-7557"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "319 S Manning Blvd Ste 110A",
            "address_purpose": "LOCATION",
            "city": "Albany",
            "state": "NY",
            "postal_code": "122081743",
            "country_code": "US",
            "telephone_number": "518-525-2525",
            "fax_number": "518-525-2522",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KONSTANTAKOS",
        "first_name": "ANASTASIOS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-22",
        "last_updated": "2025-09-16",
        "certification_date": "2025-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NH",
            "license": "35007",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MT",
            "license": "11339",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MDCD PIN",
            "identifier": "124057900",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS PIN",
            "identifier": "000097436",
            "state": "MT"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "akonstantakos@crhc.cernerdirect.com",
            "affiliation": "N",
            "endpointDescription": "Concord Hospital direct email address",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "246 Pleasant St",
            "city": "Concord",
            "state": "NH",
            "country_code": "US",
            "postal_code": "033012548",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "payer.credentialing@sphp.com",
            "affiliation": "N",
            "endpointDescription": "SPHP - Payer Credentialing",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "319 S Manning Blvd Ste 110A",
            "city": "Albany",
            "state": "NY",
            "country_code": "US",
            "postal_code": "122081743",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Concord, NH

Sources for this page

Verify at the official NPI Registry.