Dr. Aaron Cole Downey , DO
Internal Medicine β’ Tulsa, OK
8131 S Memorial Dr Ste 100
Tulsa, OK 741334348
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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Dr. Aaron Downey is listed in NPPES under Internal Medicine.
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NPI assigned on April 26, 2021; this date does not establish years in practice.
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Published CMS data list 41 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:
- Amlodipine Besylate β 16 prescription fills, including refills.
- Lisinopril β 14 prescription fills, including refills.
- Atorvastatin Calcium β 11 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 the full table Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 85% of clinicians listed under Internal Medicine in Tulsa, OK (2024, 196 clinicians with data). Median for this group: 739. Middle half: 98 to 5,882.
Fewer Part D prescriptions than 80% of clinicians listed under Internal Medicine in Oklahoma (2024, 661 clinicians with data). Median for this group: 626. Middle half: 89 to 5,646.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 12 in 2022 to 41 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022β2024.
Practice Location & Contact Primary Location
8131 S Memorial Dr Ste 100
Tulsa, OK 741334348
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2021
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
113 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
$277 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
Years since graduation
5 years (graduated 2021)
CMS Doctors and Clinicians data list 2021 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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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. Downey 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. Downey 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 85% of clinicians listed under Internal Medicine in Tulsa, OK (2024, 196 clinicians with data). Median for this group: 739. Middle half: 98 to 5,882.
Fewer Part D prescriptions than 80% of clinicians listed under Internal Medicine in Oklahoma (2024, 661 clinicians with data). Median for this group: 626. Middle half: 89 to 5,646.
Part D drug cost
A lower Part D drug cost than 90% of clinicians listed under Internal Medicine in Tulsa, OK (2024, 196 clinicians with data). Median for this group: $94,990. Middle half: $3,786 to $659,546.
A lower Part D drug cost than 85% of clinicians listed under Internal Medicine in Oklahoma (2024, 661 clinicians with data). Median for this group: $76,711. Middle half: $1,967 to $572,569.
308 active clinicians are listed under Internal Medicine with a practice address in Tulsa, OK (1,116 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tulsa
20.8% of these 308 clinicians have the CMS telehealth indicator.
67.2% of these 308 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
Medicare Part D prescriptions went from 12 in 2022 to 41 in 2024.
- 2022: 12
- 2023: 23
- 2024: 41
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30-day fills
30-day fills increased 412% from 22 in 2022 to 113 in 2024.
- 2022: 22
- 2023: 59
- 2024: 113
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Part D drug cost
Part D drug cost went from $241 in 2022 to $277 in 2024.
- 2022: $241
- 2023: $232
- 2024: $277
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
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 |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 16 | 1,110 | $112.62 | β |
| Lisinopril | Lisinopril | 14 | 1,270 | $80.71 | β |
| Atorvastatin Calcium | Atorvastatin Calcium | 11 | 1,000 | $83.80 | β |
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: 2025-10-17NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20251104002356
OK
4385134816
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Anesthesiology - Pain Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Board Certified)
Anesthesiology - Pain Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Nurse Practitioner - Adult Health
Advanced Practice Registered Nurse, Certified Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 8131 S MEMORIAL DR STE 100, TULSA, OK 741334348 (Tel: 9182009944)
Registered at 8131 S MEMORIAL DR STE 100, TULSA, OK 741334348 (Tel: 9182009944)
Internal Medicine (license number reported to NPPES: OK 9354)
NPI status registered as active in NPPES database
Registered at 7301 ROGERS AVE, FORT SMITH, AR 729034100 (Tel: 4794619223)
Registered at 7301 ROGERS AVE, FORT SMITH, AR 729034100 (Tel: 4794619223)
Recorded as AARON DOWNEY, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Tulsa
- Dr. Richard Doss, MD
- Dr. Jana Baker, DO
- Dr. Sunayna Kumar, MD
- Dr. Chelsea Therrien, MD
- Dr. Shanna Hampton, DO
- Dr. Fahad Sharwani, MD
Mailing Address
8131 S Memorial Dr Ste 100
Tulsa, OK 741334348
Phone: 9182009944