Active NPI
Anastasios Konstantakos, MD
- Surgery Physician
- Concord, NH
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- 35007
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 124057900 | Other | MT | MDCD PIN |
| 000097436 | Other | MT | BCBS PIN |
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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, NH
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 4
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
Practice addresses (Care Compare)
246 Pleasant St
Concord, NH 03301-2548
Phone (603) 224-6070
Hospital & facility affiliations
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Coronary artery bypass graft (CABG) | 1-10 |
| Removal of tissue | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 11339 | MT | MD | Surgery Physician |
| 35007 | NH | MD | Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Concord Hospital, Inc. | Current | Accepting new patients | |
| Rockford Health Physicians | Current | Accepting new patients | |
| Concord Hospital, Inc. | Current | Accepting new patients | |
| Ellis Hospital | Current | Accepting new patients | |
| Brigham & Womens Physicians Organization Inc | Current | Accepting new patients | |
| St. Peter'S Health Partners Medical Associates, P.C. | Current | Accepting new patients | |
| Concord Hospital, Inc. | Current | 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
- 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.
-
- Emergency Medicine Physician
- Concord, NH
- NPI 1194778571
-
- Internal Medicine Physician
- Boston, MA
- NPI 1033535497
-
- General Acute Care Hospital
- Schenectady, NY
- NPI 1487644993
-
- Multi-Specialty Clinic/Center
- Rockford, IL
- NPI 1043242886
-
- Multi-Specialty Clinic/Center
- Albany, NY
- NPI 1750626834
-
- Psychiatric Hospital Unit
- Concord, NH
- NPI 1124070966
-
- General Practice Physician
- Concord, NH
- NPI 1801840764
-
- Surgery Physician
- Boston, MA
- NPI 1154348688
-
- Critical Access Hospital
- Glasgow, MT
- NPI 1689685323
-
- General Acute Care Hospital
- Albany, NY
- NPI 1497701106
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Concord, NH
- NPI 1215988530
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 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.