Individual provider Active NPI

Mark George Seredowych, M.D.

  • Internal Medicine Physician
  • Santa Fe, NM
National Provider Identifier
1275545782
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
2000-89 Issued in NM
Practice address
2085 S Pacheco St
Santa Fe, NM 87505-6103
Phone
(505) 395-3050
Fax
(505) 982-5003
NPI assigned
Aug 13, 2006
Last updated
Sep 29, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 2000-89 NM Primary

Addresses

Primary practice location

2085 S Pacheco St
Santa Fe, NM 87505-6103

Mailing address

2085 S Pacheco St
Santa Fe, NM 87505-6103
Phone (505) 395-3050

Other practice location 1

4200 Beckner Rd
Santa Fe, NM 87507-3774
Phone (505) 477-2306

Other identifiers 1

IdentifierTypeStateIssuer
B4686MedicaidNM

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NM
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 1

Enrollment IDStateProvider typePAC IDDetails
I20101112000999 NM Practitioner - Internal Medicine 7810182086 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Nexus Health Primary Care LLCGroup PAC ID 0345374690, 9 clinicians

Practice addresses (Care Compare)

1650 Hospital Dr
Suite 800
Santa Fe, NM 87505-4789
Phone (505) 901-8908

2085 S Pacheco St
Santa Fe, NM 87505-6103
Phone (505) 395-3000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
2000-89NMMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Nexus Health Primary Care LLC Internal Medicine CurrentSince Sep 25, 2025 Accepting new patients
Nexus Health Past Accepting new patients

Locations

1650 Hospital Dr
Ste 200
Santa Fe, NM 87505
Phone (505) 982-4276

1650 Hospital Dr
Ste 800
Santa Fe, NM 87505
Phone (505) 395-3000

2085 S Pacheco St
Santa Fe, NM 87505
Phone (505) 395-3000

4200 Beckner Rd
Santa Fe, NM 87507
Phone (505) 477-2200

4200 Beckner Rd
Ste 201
Santa Fe, NM 87507

Interoperability endpoints

  • Direct secure messaging: mseredowych34313@direct.acumenmd.com

Organizations & group practices 3

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.

Hospital & facility affiliations 4

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": "1155427200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1275545782",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2085 S PACHECO ST",
            "city": "SANTA FE",
            "state": "NM",
            "postal_code": "875056103",
            "telephone_number": "505-395-3050",
            "fax_number": "505-982-5003"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2085 S PACHECO ST",
            "city": "SANTA FE",
            "state": "NM",
            "postal_code": "875056103",
            "telephone_number": "505-395-3050",
            "fax_number": "505-982-5003"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4200 Beckner Rd",
            "address_purpose": "LOCATION",
            "city": "Santa Fe",
            "state": "NM",
            "postal_code": "875073774",
            "country_code": "US",
            "telephone_number": "505-477-2306",
            "fax_number": "505-477-2306",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SEREDOWYCH",
        "first_name": "MARK",
        "middle_name": "GEORGE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-08-13",
        "last_updated": "2026-09-29",
        "certification_date": "2026-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NM",
            "license": "2000-89",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "B4686",
            "state": "NM"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Santa Fe, NM

Sources for this page

Verify at the official NPI Registry.