Ryan W. Dennis, MD
Internal Medicine Physician · Oklahoma City, OK
Ryan W. Dennis, MD is an internal medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1992930564, issued on May 26, 2009. Check the license (Oklahoma 27136, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Ryan W. Dennis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 27136 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1720 NE 23RD St, Oklahoma City, OK 73111
- Phone
- (405) 280-5550
- Enumerated
- May 26, 2009
- Record last updated
- Jul 14, 2023
- Fax
- (405) 280-5780
- Medicare enrollment
- Enrolled (PECOS I20121201000009); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 1720 NE 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Foster, PAMedical Physician Assistant1912943747
- Mariah Johnson, DNP, APRN, FNP-CFamily Nurse Practitioner1124796610
- Charles LunnFamily Medicine Physician1477529535
- Briana McGinnis, APRN-CNPFamily Nurse Practitioner1265800924
- Holly O'Hearn, APRNFamily Nurse Practitioner1447896055
- Deshell Tillman, APRN-FNPFamily Nurse Practitioner1396356143
Verify Ryan W. Dennis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 27136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average internal medicine physician in 2024
3,331 Medicare Part D claims for 497 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 196 claims were for opioids.
Most prescribed
- Atorvastatin Calcium141 claims
- Albuterol Sulfate Hfa134 claims
- Lisinopril125 claims
- Gabapentin111 claims
- Amlodipine Besylate106 claims
- Tamsulosin Hcl89 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $610.43
19 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- National Family Medical Associates, LLCOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan W. Dennis among 1,115 internal medicine physician records in Oklahoma
Ryan W. Dennis, MD is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 45% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2009 · median 2007 among the 653 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
418 internal medicine physician records list a practice address in Oklahoma City
They are 418 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Oklahoma City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Priya Samant, M.D.Oklahoma City, OK 731111114901204
- Khabbab Amin, DOMidwest City, OK 731101821526237
- Jack Butler, DOOklahoma City, OK 731121316925449
- Darlene Foster, MDOklahoma City, OK 731121194717132
- Allen Hamaker, MDOkc, OK 731121326028663
- Arifa Khan, M.DOklahoma City, OK 731101144571662
- Kristopher Lepere, D.O.Oklahoma City, OK 731121568461317
- Benjamin Mansalis, M.D.Midwest City, OK 731101760777627
Common questions
What is Ryan W. Dennis, MD's NPI number?
Ryan W. Dennis, MD's National Provider Identifier (NPI) is 1992930564, issued on May 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ryan W. Dennis, MD located?
The NPPES record lists a practice address at 1720 NE 23RD St, Oklahoma City, OK, 73111. Phone: (405) 280-5550. Providers update this record themselves, so call before visiting.
How can I verify Ryan W. Dennis, MD's license?
NPPES lists Oklahoma license number 27136, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan W. Dennis, MD prescribe under Medicare Part D?
In 2024, Ryan W. Dennis, MD had 3,331 Medicare Part D claims for 497 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.