Joseph Chase Johnstone, MD
Pulmonary Disease Physician · Tulsa, OK
Joseph Chase Johnstone, MD is a pulmonary disease physician with a practice address in Tulsa, Oklahoma, and NPI 1821557711, issued on Mar 19, 2019. Check the license (Oklahoma 44437, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Joseph Chase Johnstone
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 44437 OK
Self-reported in NPPES; status is on the state search - Practice location
- 6161 S Yale Ave, Tulsa, OK 74136
- Phone
- (918) 502-1900
- Enumerated
- Mar 19, 2019
- Record last updated
- Feb 25, 2026
- Fax
- (918) 494-6303
- Medicare enrollment
- Enrolled (PECOS I20250717000349); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 6161 S Yale Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samuel Adhikari, DNPCertified Registered Nurse Anesthetist1003308198
- Ricardo AguilarSurgery Physician1427317791
- Olakunle Ajanaku, M.D.Hospitalist Physician1740270305
Verify Joseph Chase Johnstone 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 44437Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
78 Medicare Part D claims for 18 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Montelukast Sodium13 claims
- Stiolto Respimat13 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: $259.35
3 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 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
- Warren Clinic IncTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pulmonary Disease Physician providers in Oklahoma
There are 150 pulmonary disease physician records in Oklahoma.
Other pulmonary disease physician records in Oklahoma
- Matthew AbbottOklahoma City, OK1770045718
- Tony Abdo, M.DOklahoma City, OK1841555935
- Hassan Abouhouli, MDTulsa, OK1366564304
- Stephen Adler, M.D.Oklahoma City, OK1346349404
- Shoaib Ahmad, MDOklahoma City, OK1255651477
- Mohammad Al-Hamed, MDTulsa, OK1619099595
- Seyed Alamian, MDOklahoma City, OK1427067628
- Isam AlbabaOklahoma City, OK1124589056
- David Allen, M.D.Oklahoma City, OK1154398410
- Karen Allen, MDOklahoma City, OK1205031960
Common questions
What is Joseph Chase Johnstone, MD's NPI number?
Joseph Chase Johnstone, MD's National Provider Identifier (NPI) is 1821557711, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Chase Johnstone, MD located?
The NPPES record lists a practice address at 6161 S Yale Ave, Tulsa, OK, 74136. Phone: (918) 502-1900. Providers update this record themselves, so call before visiting.
How can I verify Joseph Chase Johnstone, MD's license?
NPPES lists Oklahoma license number 44437, 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 Joseph Chase Johnstone, MD prescribe under Medicare Part D?
In 2024, Joseph Chase Johnstone, MD had 78 Medicare Part D claims for 18 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.