Dr. Ryan Matthew Acker , DO
Emergency Medicine β’ Tulsa, OK
1111 W 17th St
Tulsa, OK 741071886
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on June 17, 2021; this date does not establish years in practice.
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Published CMS data list 68 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Cephalexin β 22 prescription fills, including refills.
- Meloxicam β 17 prescription fills, including refills.
- Prednisone β 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 60% of clinicians listed under Emergency Medicine in Tulsa, OK (2024, 182 clinicians with data). Median for this group: 87. Middle half: 47 to 181.
Fewer Part D prescriptions than 70% of clinicians listed under Emergency Medicine in Oklahoma (2024, 515 clinicians with data). Median for this group: 118. Middle half: 56 to 216.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
Practice Location & Contact Primary Location
1111 W 17th St
Tulsa, OK 741071886
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Miami, OK; Stillwater, OK. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Creek Nation Hospital And Clinics; South Central Emergency Services, Pc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Oklahoma State University College Of Osteopathic Medicine
2022
What Public CMS Data Show
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
68 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$390 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $319.89 across 4 records.
By nature of payment
- Food and Beverage: $319.89 across 4 records.
Reporting-company totals
- VERTEX PHARMACEUTICALS INCORPORATED: $245.47 across 2 records.
- ABIOMED: $74.42 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
4 years (graduated 2022)
CMS Doctors and Clinicians data list 2022 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2021
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Acker has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Acker as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Tulsa and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 60% of clinicians listed under Emergency Medicine in Tulsa, OK (2024, 182 clinicians with data). Median for this group: 87. Middle half: 47 to 181.
Fewer Part D prescriptions than 70% of clinicians listed under Emergency Medicine in Oklahoma (2024, 515 clinicians with data). Median for this group: 118. Middle half: 56 to 216.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Emergency Medicine in Tulsa, OK (2024, 182 clinicians with data). Median for this group: $610. Middle half: $294 to $1,465.
A lower Part D drug cost than 70% of clinicians listed under Emergency Medicine in Oklahoma (2024, 515 clinicians with data). Median for this group: $892. Middle half: $363 to $1,752.
264 active clinicians are listed under Emergency Medicine with a practice address in Tulsa, OK (749 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tulsa
0.8% of these 264 clinicians have the CMS telehealth indicator.
58.3% of these 264 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2024 only.
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30-day fills
CMS data for 30-day fills are available for 2024 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2024 only.
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): fewer than 11 records totaling $319.89.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
|
β | General | $124.09 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
|
β | General | $121.38 |
| ABIOMED |
Food and Beverage
In-kind items and services
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β | General | $37.50 |
| ABIOMED |
Food and Beverage
In-kind items and services
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β | General | $36.92 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Cephalexin | Cephalexin | 22 | 150 | $180.60 | 22 |
| Meloxicam | Meloxicam | 17 | 90 | $22.32 | 17 |
| Prednisone | Prednisone | 16 | 86 | $22.70 | 16 |
| Doxycycline Hyclate | Doxycycline Hyclate | 13 | 119 | $164.75 | 13 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-08-20NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20231011000190
TX
4789039736
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
South Central Emergency Services, Pc
1323 Nw 6th Ave, Stillwater, OK 740744306
Phone: 4053721480
Creek Nation Hospital And Clinics
1401 Morris Dr, Okmulgee, OK 744476429
Phone: 9187564233
Secondary Practice Locations
200 2nd Ave Sw
Miami, OK 743546830
Phone: 9185426611
1323 W 6th Ave
Stillwater, OK 740744306
Phone: 4057425454
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Student in an Organized Health Care Education/Training Program
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Student in an Organized Health Care Education/Training Program
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Student in an Organized Health Care Education/Training Program
Emergency Medicine (license number reported to NPPES: OK 8063)
NPI status registered as active in NPPES database
Registered at 1111 W 17TH ST, TULSA, OK 741071886 (Tel: 9185611232)
Registered at 1111 W 17TH ST, TULSA, OK 741071886 (Tel: 9185611232)
Recorded as RYAN ACKER, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Tulsa
- Dr. David Remy, MD
- Dr. Sara Pope, DO
- Brandon Walker
- Damien Jackson
- Elizabeth Garrett
- Dr. Mark Brandenburg, MD
Mailing Address
1111 W 17th St
Tulsa, OK 741071886
Phone: 9185611232