Natalie Kay Schaller, D.O.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

5050 Issued in OK

Practice address

940 E 36TH St N
Tulsa, OK 74106-1953

Phone

(918) 724-9020

Fax

(918) 992-2822

NPI assigned

Jun 20, 2010

Last updated

May 28, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 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

Specialty

Family Practice

Education

Kansas City University of Med & Biosciences, College of Osteo Med, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Crossover Health Services IncGroup PAC ID 2668819145, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension St John Medical Center Hospital, Tulsa, OK, CCN 370114

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/16190/brand/1/csg/1/fhir/r4
• FHIR API: https://fhir4.healow.com/fhir/r4/IGGHAA
• Direct secure messaging: natalie.schaller.1@20421.direct.athenahealth.com
• Direct secure messaging: natalie.schaller.1@20767.direct.athenahealth.com
• Direct secure messaging: natalie.schaller.2@16190.direct.athenahealth.com
• Direct secure messaging: natalie.schaller@uchc.directbygreenway.com
• Direct secure messaging: nschaller429725@direct.unitypoint.org

All facility ownership & control disclosures 2

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

Owned or controlled facilities with NPI records 2

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

• Crossover Health Services Inc

  • Federally Qualified Health Center (FQHC)
  • Tulsa, OK
  • NPI 1407297963

  W-2 Managing Employee

  CMS ownership
• Crossover Health Services Inc

  dba Crossover Health Services

  • Federally Qualified Health Center (FQHC)
  • Tulsa, OK
  • NPI 1942958111

  W-2 Managing Employee

  CMS ownership

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.

• Crossover Health Services Inc

  • Federally Qualified Health Center (FQHC)
  • Tulsa, OK
  • NPI 1407297963
  Medicare reassignment Care Compare group NPD
• Crossover Health Services Inc

  dba Crossover Health Services

  • Federally Qualified Health Center (FQHC)
  • Tulsa, OK
  • NPI 1942958111
  NPD
• Buena Vista Regional Medical Center

  • Critical Access Hospital
  • Storm Lake, IA
  • NPI 1134191653
  NPD
• Buena Vista Regional Medical Center

  • Diagnostic Radiology Physician
  • Storm Lake, IA
  • NPI 1780755728
  NPD
• Buena Vista Regional Medical Center

  dba Bvrmc Pharmacy

  • Community/Retail Pharmacy
  • Storm Lake, IA
  • NPI 1821154220
  NPD
• St Luke's Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• United Community Health Center Inc.

  • Federally Qualified Health Center (FQHC)
  • Storm Lake, IA
  • NPI 1043268659
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• St John Medical Center Inc

  • General Acute Care Hospital
  • Tulsa, OK
  • NPI 1154417368
  Care Compare affiliation
• St John Medical Center Inc

  • Rehabilitation Hospital Unit
  • Tulsa, OK
  • NPI 1578656161
  Care Compare affiliation

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

{
    "created_epoch": "1276992000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779926400000",
    "number": "1265753669",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "715 W MILWAUKEE AVE",
            "city": "STORM LAKE",
            "state": "IA",
            "postal_code": "505881564",
            "telephone_number": "712-213-0109",
            "fax_number": "712-213-3130"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "940 E 36TH ST N",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741061953",
            "telephone_number": "918-724-9020",
            "fax_number": "918-992-2822"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "715 W Milwaukee Ave",
            "address_purpose": "LOCATION",
            "city": "Storm Lake",
            "state": "IA",
            "postal_code": "505881564",
            "country_code": "US",
            "telephone_number": "712-213-0109",
            "fax_number": "712-213-3130",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5635 N Mlk Jr Blvd",
            "address_purpose": "LOCATION",
            "city": "Tulsa",
            "state": "OK",
            "postal_code": "741266409",
            "country_code": "US",
            "telephone_number": "918-398-9460",
            "fax_number": "918-992-2822",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SCHALLER",
        "first_name": "NATALIE",
        "middle_name": "KAY",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-06-20",
        "last_updated": "2026-05-28",
        "certification_date": "2026-05-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IA",
            "license": "04472",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OK",
            "license": "5050",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "contactus@uchcsl.com",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "715 W Milwaukee Ave",
            "city": "Storm Lake",
            "state": "IA",
            "country_code": "US",
            "postal_code": "505881564",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Lee Ann Schafer, COTA
• Scott Douglas Schafer
• Lauren Nicole Schaffitzel, PA-C
• Colleen Emily Schaffling, PA-C
• Brooke Marie Schaive, APRN, FNP- BC
• William Schaller
• Matthew Schane
• Alissa Scharf, M.S. LMFT
• Garrett Thomas Charles Schaub
• David Nathan Scheck, M.D.

• 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 May 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; 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.

Verify at the official NPI Registry.