John R. Harkess, MD
Infectious Disease Physician · Oklahoma City, OK
John R. Harkess, MD is an infectious disease physician with a practice address in Oklahoma City, Oklahoma, and NPI 1366496218, issued on May 22, 2006. Check the license (Oklahoma 15943, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- John R. Harkess
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 15943 OK
Self-reported in NPPES; status is on the state search - Practice location
- 13313 N Meridian Ave, Oklahoma City, OK 73120
- Phone
- (405) 529-5759
- Enumerated
- May 22, 2006
- Record last updated
- Dec 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (405) 552-9570
- Medicaid ID
- 100064820A OK
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 65 in Oklahoma → Look up another NPI →
Also registered at 13313 N Meridian Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ralph Kanaan, M.D.Pulmonary Disease Physician1942493747
Verify John R. Harkess 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 15943Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average infectious disease physician in 2024
48 Medicare Part D claims for 14 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
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.
John R. Harkess among 65 infectious disease physician records in Oklahoma
John R. Harkess, MD is one of 65 infectious disease physician records with a practice address in Oklahoma. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 57% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2015 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Oklahoma
There are 65 infectious disease physician records in Oklahoma.
All 65 in Oklahoma → Every provider in Oklahoma City → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Janki Amin, M.D.Oklahoma City, OK 731201457794430
- James Kirk, MDOklahoma City, OK 731201073567921
- Cade Parke, D.O.Oklahoma City, OK 731201598124018
- Hanna Saadah, M.D.Oklahoma City, OK 731201164593240
- Aline Brown, MDOklahoma City, OK 731121871594879
- Jane Hudson, MDOklahoma City, OK 731121225095862
- Vadakepat Ramgopal, MDOklahoma City, OK 731121215938691
- Clifford Wlodaver, MDMidwest City, OK 731101689638975
Common questions
What is John R. Harkess, MD's NPI number?
John R. Harkess, MD's National Provider Identifier (NPI) is 1366496218, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John R. Harkess, MD located?
The NPPES record lists a practice address at 13313 N Meridian Ave, Oklahoma City, OK, 73120. Phone: (405) 529-5759. Providers update this record themselves, so call before visiting.
How can I verify John R. Harkess, MD's license?
NPPES lists Oklahoma license number 15943, 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 John R. Harkess, MD prescribe under Medicare Part D?
In 2024, John R. Harkess, MD had 48 Medicare Part D claims for 14 beneficiaries; the average among infectious disease physician prescribers was 689. 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.