Active NPI
Marc Kostrubiak
- Anesthesiology Physician
- Anchorage, AK
National Provider Identifier
1649852401
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- 252615
- Practice address
- 3300 Providence Dr Ste 205
Anchorage, AK 99508-4620 - Phone
- (907) 297-0555
- NPI assigned
- Apr 22, 2021
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | 252615 | AK | Primary |
Addresses
Primary practice location
3300 Providence Dr Ste 205
Anchorage, AK 99508-4620
Mailing address
3300 Providence Dr Ste 205
Anchorage, AK 99508-4620
Phone (907) 279-0555
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: Yes
- Hospice: No
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1619049600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789603200000",
"number": "1649852401",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3300 PROVIDENCE DR STE 205",
"city": "ANCHORAGE",
"state": "AK",
"postal_code": "995084620",
"telephone_number": "907-279-0555"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3300 PROVIDENCE DR STE 205",
"city": "ANCHORAGE",
"state": "AK",
"postal_code": "995084620",
"telephone_number": "907-297-0555"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KOSTRUBIAK",
"first_name": "MARC",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-04-22",
"last_updated": "2026-09-17",
"certification_date": "2026-09-17",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "AK",
"license": "252615",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Anchorage, AK
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 17, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.