Nathan Strandmark, D.O.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

7211 Issued in OK

Practice address

7912 E 31St CT Ste 300
Tulsa, OK 74145-1339

Phone

(918) 743-8200

Fax

(918) 743-8609

NPI assigned

Nov 30, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in OK

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/6925/brand/1/csg/1/fhir/r4
• Direct secure messaging: nathan.strandmark@khindirect.org

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.

• Harvard Family Physicians P C

  • Family Medicine Physician
  • Tulsa, OK
  • NPI 1306891288
  Medicare reassignment NPD
• National Family Medical Associates, LLC

  • Primary Care Clinic/Center
  • Tulsa, OK
  • NPI 1477287720

  Family Medicine

  Medicare reassignment NPD

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

{
    "created_epoch": "1164844800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766361600000",
    "number": "1457428518",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "601 S HARBOUR ISLAND BLVD STE 200",
            "city": "TAMPA",
            "state": "FL",
            "postal_code": "336025925",
            "telephone_number": "727-322-3439",
            "fax_number": "800-928-7449"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7912 E 31ST CT STE 300",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741451339",
            "telephone_number": "918-743-8200",
            "fax_number": "918-743-8609"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STRANDMARK",
        "first_name": "NATHAN",
        "name_prefix": "Mr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-30",
        "last_updated": "2025-12-22",
        "certification_date": "2025-12-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OK",
            "license": "7211",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100088530",
            "state": "KS"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jadyn Strack
• Daniel C Straight
• Laura Leigh Strain, LCSW (UNDER SUP)
• Genie Alice Strakal, PT
• Michael J. Strakal, PT
• Christopher Michael Strapason
• Strategic Pathways Counseling and Consulting LLC
• Bryn Stratton, PHARMD
• Harold Stratton, M.D.
• Jason Shawhan Stratton, MD

• Family Medicine Physician in Tulsa, OK
• Providers in Tulsa, OK by specialty
• Family Medicine Physician in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 22, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.