James Milton Johnston, MD
Internal Medicine Physician · Oklahoma City, OK
James Milton Johnston, MD is an internal medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1144204314, issued on Dec 1, 2005. Check the license (Oklahoma 9515, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James Milton Johnston
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 9515 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1110 N Classen Blvd, Oklahoma City, OK 73106
- Phone
- (405) 236-3736
- Enumerated
- Dec 1, 2005
- Record last updated
- Jan 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (405) 236-2137
- Medicaid ID
- 100110380A OK
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 1110 N Classen Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Greyson, MDInternal Medicine Physician1356355770
- Maria Kane, M.D.Psychiatry Physician1922050335
- Sally Tan, M.D.Internal Medicine Physician1699887331
Verify James Milton Johnston 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 9515Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
James Milton Johnston among 1,115 internal medicine physician records in Oklahoma
James Milton Johnston, 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 not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileNo · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2011 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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
- Richard Greyson, MDOklahoma City, OK 731061356355770
- Jerry Pritchett, MDOklahoma City, OK 731061811156615
- Sally Tan, M.D.Oklahoma City, OK 731061699887331
- Chase Adams, MD, MSOklahoma City, OK 731041194655910
- Lohithasya Chowdary Chunduru, MDOklahoma City, OK 731041821989054
- Javeria KhanOklahoma City, OK 731041033038211
- Gunjan Kochhar, MDOklahoma City, OK 731041053253773
- Madyson Kuhn, DOOklahoma City, OK 731041972439537
Common questions
What is James Milton Johnston, MD's NPI number?
James Milton Johnston, MD's National Provider Identifier (NPI) is 1144204314, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Milton Johnston, MD located?
The NPPES record lists a practice address at 1110 N Classen Blvd, Oklahoma City, OK, 73106. Phone: (405) 236-3736. Providers update this record themselves, so call before visiting.
How can I verify James Milton Johnston, MD's license?
NPPES lists Oklahoma license number 9515, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.