Jay C. Johnston, M.D.
Specialist · Oklahoma City, OK
Jay C. Johnston, M.D. is a specialist with a practice address in Oklahoma City, Oklahoma, and NPI 1740217082, issued on Jun 26, 2006. Check the license (Oklahoma 8645, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jay C. Johnston
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 8645 OK
Self-reported in NPPES; status is on the state search - Practice location
- 4200 W Memorial RD, Oklahoma City, OK 73120
- Phone
- (405) 749-4280
- Enumerated
- Jun 26, 2006
- Record last updated
- Feb 26, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (405) 749-4281
- Entity
- Type 1 · individual
8 nearest specialist records → All 422 in Oklahoma → Look up another NPI →
Also registered at 4200 W Memorial RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jay C. Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 8645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average specialist in 2024
79 Medicare Part D claims for 30 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Timolol Maleate11 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: $67.33
1 payment: food and beverage; the largest payer was Scpharmaceuticals Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Jay C. Johnston among 422 specialist records in Oklahoma
Jay C. Johnston, M.D. is one of 422 specialist records with a practice address in Oklahoma. 18% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 63% newer
- In a Medicare fileYes · 18% of these records are
- In the CMS Doctors and Clinicians fileNo · 12% of these records are
- Record last updated2016 · 83% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Oklahoma
There are 422 specialist records in Oklahoma.
All 422 in Oklahoma → Every provider in Oklahoma City → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Stephen Cagle, M.D.Oklahoma City, OK 731201053300483
- Lawrence Deck, M.D.Oklahoma City, OK 731201467495911
- Charles Engles, M.D.Oklahoma City, OK 731201710960240
- Jacqueline GreenOklahoma City, OK 731201568866648
- Robert Hein, M.D.Oklahoma City, OK 731201023026697
- Gregory Isch, P.T.Oklahoma City, OK 731201447290564
- Ronald Janzen, MDOklahoma City, OK 731201982643383
- Janet Ritchie, NPOklahoma City, OK 731201437374592
Common questions
What is Jay C. Johnston, M.D.'s NPI number?
Jay C. Johnston, M.D.'s National Provider Identifier (NPI) is 1740217082, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jay C. Johnston, M.D. located?
The NPPES record lists a practice address at 4200 W Memorial RD, Oklahoma City, OK, 73120. Phone: (405) 749-4280. Providers update this record themselves, so call before visiting.
How can I verify Jay C. Johnston, M.D.'s license?
NPPES lists Oklahoma license number 8645, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Jay C. Johnston, M.D. prescribe under Medicare Part D?
In 2024, Jay C. Johnston, M.D. had 79 Medicare Part D claims for 30 beneficiaries; the average among specialist prescribers was 1,380. 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.