Dr. Gary Warren Hillman, DO
- Medicare services, 2023
- 93
- Medicare patients, 2024
- 32
- Part D claims, 2024
- 100
- Hospital affiliations
- 4
- Medical groups
- 10
- Practice address
- 100 N 30th St, Clinton, OK 73601
- Practice phone
- Call (580) 323-0261
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Alliancehealth Clinton
Clinton, Oklahoma
Find Dr. Hillman's professional email, personal email and mobile number
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Dr. Gary Warren Hillman is an emergency medicine physician in Clinton, Oklahoma
Dr. Hillman practices at Alliancehealth Clinton in Clinton, Oklahoma.
Dr. Hillman's NPI, 1760444160, was assigned on April 3, 2006. Dr. Hillman holds Oklahoma license 3957.
- NPI
- 1760444160NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284538182
- NPI enumeration date
- April 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (580) 323-0261
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary Warren Hillman practices at Alliancehealth Clinton in Clinton, Oklahoma
Dr. Hillman's primary practice is Alliancehealth Clinton, at 100 N 30th St, Clinton, OK 73601 in Custer County. The practice phone is (580) 323-0261.
- Alliancehealth Clinton100 N 30th St, Clinton, OK 73601 · Custer CountyPhone(580) 323-0261
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gary Warren Hillman is affiliated with 5 sites of care and 10 medical groups
Dr. Hillman's primary practice is Alliancehealth Clinton in Clinton, Oklahoma. Dr. Hillman is also affiliated with Oklahoma Heart Hospital North. The medical group on file is Memorial Hospital of Texas County. Dmand AI also links Dr. Hillman to 3 more hospitals and 9 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary Warren Hillman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hillman practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alliancehealth Clinton | Available with a free account |
| +4 more sites and 9 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary Warren Hillman is one of 695 emergency medicine physicians in Oklahoma
Emergency medicine is Dr. Hillman's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Hillman is licensed in Oklahoma.
Specialties and state licenses
- Emergency medicine, OklahomaPrimary
Emergency medicine physicians near Dr. Hillman
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gary Warren Hillman billed Medicare for 93 services in 2023
CMS data shows 93 Medicare services from Dr. Hillman across 2 procedure codes in 2023, for 32 Medicare patients. Medicare paid $6,022 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hillman's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1812023: 9349%
Dr. Hillman compared with the Oklahoma median for emergency medicine physicians, 2023
- Dr. Hillman
- Oklahoma median
- Medicare services
- 93vs 32471% below
- Medicare patients
- 32vs 29489% below
- Part D claims
- 12vs 8886% below
Medians across 669 emergency medicine physicians in Oklahoma with Dmand AI profiles that report each measure.
Dr. Hillman's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hillman and other emergency medicine physicians in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary Warren Hillman treated 32 Medicare patients in 2024, average age 77
CMS counts 32 Medicare patients who saw Dr. Hillman in 2024. The largest group is 75 to 84, with 11 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.18, 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. Hillman's median patient age at 43, with 50% women.
Dr. Hillman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hillman's Medicare patients by sex, 2024
- Women1959%
- Men1341%
Chronic conditions among Dr. Hillman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis66%
- Ischemic heart disease66%
- Anxiety47%
- Diabetes47%
- Chronic kidney disease41%
- Mood disorders41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hillman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary Warren Hillman wrote 100 Medicare Part D claims in 2024
In 2024, Dr. Hillman wrote 100 Medicare Part D claims for 64 patients. 97% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $116 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Hillman's Part D claims by kind of drug, 2024
- Generic97 claims97%
- Brand-name and other3 claims3%
Dr. Hillman's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Hillman's Part D claims, 2024
- Antibiotics28%28 of 100 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 122023: 12No change
Drugs named by CMS: 1 in 2023, 1 in 2022.
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
How Dr. Gary Warren Hillman takes part in Medicare
Dr. Hillman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Gary Warren Hillman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Gary Warren Hillman
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. Gary Warren Hillman's NPI number?
Dr. Gary Warren Hillman's NPI number is 1760444160. It was assigned on April 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary Warren Hillman?
Dr. Gary Warren Hillman is an emergency medicine physician in Clinton, Oklahoma. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Gary Warren Hillman practice?
Dr. Hillman practices at 100 N 30th St, Clinton, OK 73601. Dr. Hillman's primary practice is Alliancehealth Clinton in Clinton, Oklahoma. Dmand AI also links Dr. Hillman to 3 hospitals and 9 medical groups.
What is Dr. Gary Warren Hillman's office phone number?
The practice phone on file for Dr. Hillman is (580) 323-0261.
What is Dr. Gary Warren Hillman's medical license number?
Dr. Hillman holds Oklahoma license 3957.
Which hospitals is Dr. Gary Warren Hillman affiliated with?
Dr. Hillman is affiliated with Oklahoma Heart Hospital North. Dmand AI links Dr. Hillman to 3 more hospitals.
What medical group is Dr. Gary Warren Hillman part of?
Dr. Hillman is linked to Memorial Hospital of Texas County. Dmand AI links Dr. Hillman to 9 more medical groups.
Does Dr. Gary Warren Hillman accept Medicare?
Yes. CMS data shows Dr. Hillman billed Medicare for 93 services in 2023, and Dr. Hillman accepts Medicare assignment.
How many Medicare patients does Dr. Gary Warren Hillman see?
CMS counts 32 Medicare patients who saw Dr. Hillman in 2024, with an average age of 77.
What services does Dr. Gary Warren Hillman bill to Medicare?
In 2023, Dr. Hillman's most billed Medicare services were emergency department visit (99284) and emergency department visit (99283).
What drugs does Dr. Gary Warren Hillman prescribe most?
In 2023 Medicare Part D data, Dr. Hillman's most prescribed drugs by claims were Methylprednisolone.
How long has Dr. Gary Warren Hillman been practicing?
Dr. Hillman graduated from medical school in 1998, 28 years ago.
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