Individual provider Active NPI

Theresa Lynn Gress, APRN

  • Acute Care Nurse Practitioner
  • Tulsa, OK
National Provider Identifier
1598250508
Registry record updated Jun 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
R0100775 Issued in OK
Practice address
6475 S Yale Ave Ste 308
Tulsa, OK 74136-7802
Phone
(918) 499-4000
Fax
(918) 499-4001
NPI assigned
Jun 22, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 24, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X R0100775 OK Primary

Addresses

Primary practice location

6475 S Yale Ave Ste 308
Tulsa, OK 74136-7802

Mailing address

6600 S Yale Ave Ste 1200
Tulsa, OK 74136-3333

Medicare participation

Medicare enrollment files
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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20180910001221 OK Practitioner - Nurse Practitioner 0840540027 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Warren Clinic IncGroup PAC ID 8820900293, 787 clinicians

Practice addresses (Care Compare)

6161 S Yale Ave
Tulsa, OK 74136-1902
Phone (918) 502-4720

6600 S Yale Ave
Suite 1400
Tulsa, OK 74136-3331
Phone (918) 488-6000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
St. John Physicians, Inc. CurrentSince Aug 26, 2018 Accepting new patients
Warren Clinic Inc CurrentSince Oct 16, 2023 Accepting new patients
St. John Physicians, Inc CurrentSince Aug 26, 2018 Accepting new patients
Saint Francis Hospital Muskogee Inc PastSince Mar 12, 2024 Accepting new patients

Locations

6475 S Yale Ave
Ste 308
Tulsa, OK 74136
Phone (918) 499-4000

1705 E 19th St
Ste 302
Tulsa, OK 74104
Phone (918) 748-7585

6600 S Yale Ave
Ste 1400
Tulsa, OK 74136
Phone (888) 247-0125

2000 S Wheeling Ave
Ste 701
Tulsa, OK 74104
Phone (918) 744-7887

6600 S Yale Ave
Ste 1200
Tulsa, OK 74136
Phone (918) 488-6045

Interoperability endpoints

  • Direct secure messaging: tgress303763@direct.saintfrancis.com

Organizations & group practices 4

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.

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": "1529625600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1598250508",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6600 S YALE AVE STE 1200",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741363333"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6475 S YALE AVE STE 308",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741367802",
            "telephone_number": "918-499-4000",
            "fax_number": "918-499-4001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRESS",
        "first_name": "THERESA",
        "middle_name": "LYNN",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-06-22",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "OK",
            "license": "R0100775",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tulsa, OK

Sources for this page

Verify at the official NPI Registry.