Jay Lance Gregston, M.D.
Emergency Medicine Physician · Duncan, OK
Jay Lance Gregston, M.D. is an emergency medicine physician with a practice address in Duncan, Oklahoma, and NPI 1871581512, issued on Oct 6, 2005. Check the license (Oklahoma 20226, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Jay Lance Gregston
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20226 OK
Self-reported in NPPES; status is on the state search - Practice location
- 2004 N Highway 81, Duncan, OK 73533
- Phone
- (580) 252-1911
- Enumerated
- Oct 6, 2005
- Record last updated
- Aug 3, 2026
- Fax
- (580) 252-1020
- Medicaid IDs
- 100254370A OK
200069940A OK
200116880B OK
100254370B OK - Medicare enrollment
- Enrolled (PECOS I20050715001036); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 748 in Oklahoma → Look up another NPI →
Also registered at 2004 N Highway 81
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mathew Ivory, M.D.Family Medicine Physician1497781207
- Ruth Thompson, ARNPFamily Nurse Practitioner1922094457
Verify Jay Lance Gregston 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 20226Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average emergency medicine physician in 2024
265 Medicare Part D claims for 79 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Dextroamphetamine-Amphetamine97 claims
- Dextroamphetamine-Amphet Er48 claims
- Guanfacine Hcl Er26 claims
- Methylphenidate Hcl13 claims
- Vyvanse11 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.
Bills Medicare through one group practice
- Urgent Med LLCDuncan, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jay Lance Gregston among 748 emergency medicine physician records in Oklahoma
Jay Lance Gregston, M.D. is one of 748 emergency medicine physician records with a practice address in Oklahoma. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1996 · median 2016 among the 438 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Oklahoma
There are 748 emergency medicine physician records in Oklahoma.
All 748 in Oklahoma → Every provider in Duncan → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- John Harrison, D.O.Duncan, OK 735331386630499
- James Petersen, D.O.Duncan, OK 735331992145098
- David Tilles, D.O.Duncan, OK 735331518957414
- Roy Goddard, D.O.Altus, OK 735211437155710
- James McClay, DOAltus, OK 735211164484176
- Jentry McLaughlin, D.O.Altus, OK 735211780110221
- Alisha Miner, DOAltus, OK 735211053761551
- Michael Oliver, DOAltus, OK 735211326181777
Common questions
What is Jay Lance Gregston, M.D.'s NPI number?
Jay Lance Gregston, M.D.'s National Provider Identifier (NPI) is 1871581512, issued on Oct 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jay Lance Gregston, M.D. located?
The NPPES record lists a practice address at 2004 N Highway 81, Duncan, OK, 73533. Phone: (580) 252-1911. Providers update this record themselves, so call before visiting.
How can I verify Jay Lance Gregston, M.D.'s license?
NPPES lists Oklahoma license number 20226, 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 Jay Lance Gregston, M.D. prescribe under Medicare Part D?
In 2024, Jay Lance Gregston, M.D. had 265 Medicare Part D claims for 79 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.