Clinical CompetenceData CollectionEducation, Medical, Continuing
Dr. Jay Allen Gregory, MD
NPI1013051226
- Medicare services, 2024
- 194
- Medicare patients, 2024
- 63
- Part D claims, 2024
- 23
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 351 South 40th Street, Muskogee, OK 74401
- Practice phone
- Call (918) 682-6161
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gregory's professional email, personal email and mobile number
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Dr. Jay Allen Gregory is a general surgeon in Muskogee, Oklahoma
Dr. Gregory practices at Cornerstone Specialty Hospitals Muskogee in Muskogee, Oklahoma, part of ScionHealth.
Dr. Gregory's NPI, 1013051226, was assigned on February 19, 2007. Dr. Gregory graduated from University of Oklahoma College of Medicine in 1976. Dr. Gregory holds Oklahoma license 13585.
NPI and contact details
- NPI
- 1013051226NPI Registry (opens in a new tab)
- NPI enumeration date
- February 19, 2007
- NPI status
- Active
- Practice phone
- (918) 682-6161
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jay Allen Gregory practices at Cornerstone Specialty Hospitals Muskogee in Muskogee, Oklahoma
Dr. Gregory's primary practice is Cornerstone Specialty Hospitals Muskogee, at 351 South 40th Street, Muskogee, OK 74401 in Muskogee County. The practice phone is (918) 682-6161.
- Cornerstone Specialty Hospitals Muskogee351 South 40th Street, Muskogee, OK 74401 · Muskogee CountyPhone(918) 682-6161
Source: Dmand AI Affiliation Data
Dr. Jay Allen Gregory is affiliated with 2 sites of care
Dr. Gregory's primary practice is Cornerstone Specialty Hospitals Muskogee in Muskogee, Oklahoma, part of ScionHealth. Dmand AI also links Dr. Gregory to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jay Allen Gregory's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregory practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cornerstone Specialty Hospitals Muskogee | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jay Allen Gregory is one of 316 general surgeons in Oklahoma
Surgery is Dr. Gregory's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Gregory is licensed in Oklahoma.
Specialties and state licenses
- Surgery, OklahomaPrimary
General surgeons near Dr. Gregory
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
316general surgeons in Oklahoma
4general surgeons in Muskogee
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jay Allen Gregory billed Medicare for 194 services in 2024
CMS data shows 194 Medicare services from Dr. Gregory across 5 procedure codes in 2024, for 63 Medicare patients. Medicare paid $9,797 for them.
Medicare services, 2024194
Medicare patients63
Paid by Medicare$9,797
Procedure codes5
Dr. Gregory's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 262024: 194646%
Where Dr. Gregory's Medicare services took place, 2024
- In an office116%
- In a facility18394%
Dr. Gregory compared with the Oklahoma median for general surgeons, 2024
- Dr. Gregory
- Oklahoma median
- Medicare services
- 194vs 190Close to median
- Medicare patients
- 63vs 14557% below
- Part D claims
- 12vs 6180% below
Medians across 312 general surgeons in Oklahoma with Dmand AI profiles that report each measure.
Dr. Gregory's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Gregory?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gregory and other general surgeons in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jay Allen Gregory treated 63 Medicare patients in 2024, average age 71
CMS counts 63 Medicare patients who saw Dr. Gregory in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 3.30, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gregory's median patient age at 64, with 75% women.
Medicare patients, 202463
Average age71
Average risk score3.30
Also on Medicaid29%
Dr. Gregory's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gregory's Medicare patients by sex, 2024
- Women3251%
- Men3149%
Chronic conditions among Dr. Gregory's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Heart failure49%
- Arthritis44%
- Chronic kidney disease43%
- Anxiety41%
- Mood disorders38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gregory's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women75%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jay Allen Gregory wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Gregory wrote 23 Medicare Part D claims for 13 patients. 74% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $6,607 in total drug cost. In 2021, CMS named 16 claims across 1 drug.
Part D claims, 202423
Drugs named by CMS1
Total drug cost$6,607
Part D patients13
Dr. Gregory's Part D claims by kind of drug, 2024
- Generic17 claims74%
- Brand-name and other6 claims26%
Dr. Gregory's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 162022: 1225%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Jay Allen Gregory has 1 publication on record
Dmand AI links 1 paper to Dr. Gregory in 2014. Dr. Gregory's most frequent co-authors are William G. Cioffi, MD, Lena Marie Napolitano, MD and Ajit K. Sachdeva, MD.
Papers1
Dr. Gregory's most frequent co-authors
- William G. Cioffi, MD1 shared paper
- Lena Marie Napolitano, MD1 shared paper
- Ajit K. Sachdeva, MD1 shared paper
Recent publications by Dr. Gregory
See who Dr. Gregory researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gregory works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jay Allen Gregory received $206 in industry payments from 2017 to 2022
CMS Open Payments shows 5 general payments to Dr. Gregory from 3 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $132.
General payments to Dr. Gregory by program year, 2017 to 2022
Companies that paid Dr. Gregory the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jay Allen Gregory graduated from University of Oklahoma College of Medicine
Dr. Gregory graduated from University of Oklahoma College of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jay Allen Gregory's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jay Allen Gregory
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jay Allen Gregory's NPI number?
Dr. Jay Allen Gregory's NPI number is 1013051226. It was assigned on February 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jay Allen Gregory?
Dr. Jay Allen Gregory is a general surgeon in Muskogee, Oklahoma. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Jay Allen Gregory practice?
Dr. Gregory practices at 351 South 40th Street, Muskogee, OK 74401. Dr. Gregory's primary practice is Cornerstone Specialty Hospitals Muskogee in Muskogee, Oklahoma, part of ScionHealth. Dmand AI also links Dr. Gregory to 1 physician office.
What is Dr. Jay Allen Gregory's office phone number?
The practice phone on file for Dr. Gregory is (918) 682-6161.
What is Dr. Jay Allen Gregory's medical license number?
Dr. Gregory holds Oklahoma license 13585.
Which hospitals is Dr. Jay Allen Gregory affiliated with?
Dr. Gregory practices at Cornerstone Specialty Hospitals Muskogee in Muskogee, Oklahoma.
Does Dr. Jay Allen Gregory accept Medicare?
Yes. CMS data shows Dr. Gregory billed Medicare for 194 services in 2024.
How many Medicare patients does Dr. Jay Allen Gregory see?
CMS counts 63 Medicare patients who saw Dr. Gregory in 2024, with an average age of 71.
What services does Dr. Jay Allen Gregory bill to Medicare?
In 2024, Dr. Gregory's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Jay Allen Gregory go to medical school?
Dr. Gregory graduated from University of Oklahoma College of Medicine in 1976.
Show 5 more questionsShow fewer questions
What drugs does Dr. Jay Allen Gregory prescribe most?
In 2022 Medicare Part D data, Dr. Gregory's most prescribed drugs by claims were Xarelto.
Has Dr. Jay Allen Gregory received payments from drug or device companies?
CMS Open Payments shows $206 in general payments to Dr. Gregory from 3 companies from 2017 to 2022. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Jay Allen Gregory been practicing?
Dr. Gregory graduated from medical school in 1976, 50 years ago.
Does Dr. Jay Allen Gregory do research?
Dmand AI links 1 publication to Dr. Gregory.
Who does Dr. Jay Allen Gregory publish with?
Dr. Gregory's most frequent co-authors are William G. Cioffi, MD (1 shared paper), Lena Marie Napolitano, MD (1 shared paper) and Ajit K. Sachdeva, MD (1 shared paper).
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