NPIMap

Individual provider Active NPI

Ryan Matthew Acker, DO

  • Emergency Medicine Physician
  • Tulsa, OK
National Provider Identifier
1659949303
Registry record updated Aug 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
8063 Issued in OK
Practice address
1111 W 17TH St
Tulsa, OK 74107-1886
Phone
(918) 561-1232
NPI assigned
Jun 17, 2021
Last updated
Aug 20, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 20, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X NU
Emergency Medicine Physician 207P00000X 8063 OK Primary

Addresses

Primary practice location

1111 W 17TH St
Tulsa, OK 74107-1886

Mailing address

1111 W 17TH St
Tulsa, OK 74107-1886
Phone (918) 561-1232

Other practice location 1

200 2nd Ave SW
Miami, OK 74354-6830
Phone (918) 542-6611

Other practice location 2

1323 W 6th Ave
Stillwater, OK 74074-4306
Phone (405) 742-5454

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OK, TX2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20231011000085 OK Practitioner - Emergency Medicine 4789039736 Reassigns benefits to 3 organizations
I20231011000190 TX Practitioner - Emergency Medicine 4789039736 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Oklahoma State University College of Osteopathic Medicine, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
South Central Emergency Services, PCGroup PAC ID 8224212949, 57 clinicians
Ies ER Oklahoma LLCGroup PAC ID 5395234678, 135 clinicians

Practice addresses (Care Compare)

1323 NW 6TH Ave
Stillwater, OK 74074-4306
Phone (405) 372-1480

6161 S Yale Ave
Tulsa, OK 74136-1902
Phone (918) 494-2200

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
95.83 of 100Reported as group
Quality
81.24
Promoting interoperability
100
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
85.12 of 100Reported as group
Quality
83.76
Promoting interoperability
100
Improvement activities
40
Cost
56.64

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
8063OKMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Creek Nation Hospital & Clinics Current Accepting new patients
Creek Nation Hospital & Clinics CurrentSince Sep 20, 2023 Accepting new patients
Creek Nation Hospital & Clinics CurrentSince Sep 20, 2023 Accepting new patients
South Central Emergency Services PC Emergency Medicine CurrentSince Oct 15, 2024 Accepting new patients
Creek Nation Hospital & Clinics CurrentSince Sep 20, 2023 Accepting new patients
Green Country Emergency Physicians Group of Tulsa PLLC Emergency Medicine CurrentSince Jul 26, 2024 Accepting new patients
Stillwater Medical Center Authority Past Accepting new patients
Ahs Henryetta Hospital LLC Past Accepting new patients

Locations

1202 N Muskogee Pl
Claremore, OK 74017
Phone (918) 341-2556

1027 E Cherry St
Cushing, OK 74023
Phone (918) 225-2915

2401 W Main St
Henryetta, OK 74437
Phone (918) 650-1100

200 2nd Ave SW
Miami, OK 74354
Phone (918) 540-7113

1401 Morris Dr
Okmulgee, OK 74447
Phone (918) 456-0641

900 E Airport Rd
Okmulgee, OK 74447
Phone 91875643334448

1323 W 6th Ave
Stillwater, OK 74074
Phone (405) 372-1480

10109 E 79th St
Tulsa, OK 74133
Phone (888) 552-6760

1120 S Utica Ave
Tulsa, OK 74104
Phone (918) 579-6090

Dept 1038
Tulsa, OK 74182

Dept 1467
Tulsa, OK 74182

Organizations & group practices 11

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 3

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": "1623888000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755648000000",
    "number": "1659949303",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1111 W 17TH ST",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741071886",
            "telephone_number": "918-561-1232"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1111 W 17TH ST",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741071886",
            "telephone_number": "918-561-1232"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 2nd Ave SW",
            "address_purpose": "LOCATION",
            "city": "Miami",
            "state": "OK",
            "postal_code": "743546830",
            "country_code": "US",
            "telephone_number": "918-542-6611",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1323 W 6th Ave",
            "address_purpose": "LOCATION",
            "city": "Stillwater",
            "state": "OK",
            "postal_code": "740744306",
            "country_code": "US",
            "telephone_number": "405-742-5454",
            "fax_number": "405-742-5454",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ACKER",
        "first_name": "RYAN",
        "middle_name": "MATTHEW",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-06-17",
        "last_updated": "2025-08-20",
        "certification_date": "2025-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OK",
            "license": "8063",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tulsa, OK

Sources for this page

Verify at the official NPI Registry.