Dr. Gregory J. Oakhill, MD
- Medicare services, 2024
- 296,572
- Medicare patients, 2024
- 1,509
- Part D claims, 2024
- 2,669
- MIPS score, 2024
- 91
- Hospital affiliations
- 4
- Practice address
- 808 S 52nd St, Rogers, AR 72758
- Practice phone
- Call (479) 587-1700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Highlands Oncology Group PA
Rogers, Arkansas
Find Dr. Oakhill's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregory J. Oakhill is a hematologist and oncologist in Rogers, Arkansas
Dr. Oakhill practices at Highlands Oncology Group PA in Rogers, Arkansas.
Dr. Oakhill's NPI, 1356312466, was assigned on January 27, 2006. Dr. Oakhill graduated from Medical University of South Carolina College of Medicine in 1994. Dr. Oakhill holds Arkansas license E2513.
- NPI
- 1356312466NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436177128
- NPI enumeration date
- January 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (479) 587-1700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory J. Oakhill practices at Highlands Oncology Group PA in Rogers, Arkansas
Dr. Oakhill's primary practice is Highlands Oncology Group PA, at 808 S 52nd St, Rogers, AR 72758 in Benton County. The practice phone is (479) 587-1700.
- Highlands Oncology Group PA808 S 52nd St, Rogers, AR 72758 · Benton CountyPhone(479) 587-1700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory J. Oakhill is affiliated with 7 sites of care and 1 medical group
Dr. Oakhill's primary practice is Highlands Oncology Group PA in Rogers, Arkansas. Dr. Oakhill is also affiliated with Mercy Hospital Northwest Arkansas. The medical group on file is Highlands Oncology Group. Dmand AI also links Dr. Oakhill to 3 more hospitals, 1 group practice or clinic and 1 home health agency, 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. Gregory J. Oakhill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oakhill practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Highlands Oncology Group PA | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory J. Oakhill is one of 89 hematologists and oncologists in Arkansas
Hematology and oncology is Dr. Oakhill's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Oakhill's licenses on file in 2 states: Arkansas and South Carolina.
Specialties and state licenses
- Hematology and oncology, ArkansasPrimary
- South Carolina license
Hematologists and oncologists near Dr. Oakhill
Counts of hematologists and oncologists 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. Gregory J. Oakhill billed Medicare for 296,572 services in 2024
CMS data shows 296,572 Medicare services from Dr. Oakhill across 128 procedure codes in 2024, for 1,509 Medicare patients. Medicare paid $3,426,098 for them.
Dr. Oakhill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 161,8672024: 147,1669%
- Drugs given in the office
- 2023: 84,5672024: 111,86432%
- Lab and pathology
- 2023: 25,9842024: 29,78115%
- Tests and treatments
- 2023: 2,9102024: 3,51821%
- Office and hospital visits
- 2023: 2,0722024: 2,2157%
- Imaging
- 2023: 1,7952024: 1,800No change
- Surgery
- 2023: 9382024: 22876%
Where Dr. Oakhill's Medicare services took place, 2024
- In an office296,430100%
- In a facility1420%
Dr. Oakhill compared with the Arkansas median for hematologists and oncologists, 2024
- Dr. Oakhill
- Arkansas median
- Medicare services
- 296,572vs 4,81661.6 times
- Medicare patients
- 1,509vs 75899% above
- Part D claims
- 2,297vs 1,17396% above
Medians across 88 hematologists and oncologists in Arkansas with Dmand AI profiles that report each measure.
Dr. Oakhill'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oakhill and other hematologists and oncologists in Arkansas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory J. Oakhill treated 1,509 Medicare patients in 2024, average age 74
CMS counts 1,509 Medicare patients who saw Dr. Oakhill in 2024. The largest group is 65 to 74, with 670 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 9% are also on Medicaid. Their average risk score is 2.24, 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. Oakhill's median patient age at 69, with 56% women.
Dr. Oakhill's Medicare patients by age, 2024
Dr. Oakhill's Medicare patients by sex, 2024
- Women83956%
- Men67044%
Chronic conditions among Dr. Oakhill's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Cancer51%
- Arthritis46%
- Ischemic heart disease36%
- Chronic kidney disease31%
- Mood disorders30%
- Anxiety29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oakhill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory J. Oakhill wrote 2,669 Medicare Part D claims in 2024
In 2024, Dr. Oakhill wrote 2,669 Medicare Part D claims for 478 patients. 80% of them were for generic drugs. CMS names the drug for 2,297 of them, across 67 drugs with 11 or more claims each, at $2,539,259 in total drug cost. In 2023, CMS named 1,700 claims across 50 drugs.
Dr. Oakhill's Part D claims by kind of drug, 2024
- Generic2,128 claims80%
- Brand-name541 claims20%
Dr. Oakhill's most prescribed drugs by claims, 2024
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. Oakhill's Part D claims, 2024
- Opioids7%185 of 2,669 claims
- Antibiotics7%196 of 2,669 claims
- Antipsychotics, patients 65 and over1%39 of 2,669 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,7002024: 2,29735%
Drugs named by CMS: 67 in 2024, 50 in 2023.
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
Dr. Gregory J. Oakhill scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Oakhill for performance year 2024, reported as part of a group. Dr. Oakhill accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Oakhill's MIPS scores, performance year 2024
- 91of 100Final score
- 86.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gregory J. Oakhill received $12,733 in industry payments from 2016 to 2025
CMS Open Payments shows 707 general payments to Dr. Oakhill from 74 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Janssen Pharmaceuticals, Inc paid the most, $1,742.
General payments to Dr. Oakhill by program year, 2016 to 2025
General payments to Dr. Oakhill by kind, 2016 to 2025
- Food and beverage$12,29397%
- Education$4403%
Companies that paid Dr. Oakhill the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory J. Oakhill graduated from Medical University of South Carolina College of Medicine
Dr. Oakhill graduated from Medical University of South Carolina College of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory J. Oakhill'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Gregory J. Oakhill
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. Gregory J. Oakhill's NPI number?
Dr. Gregory J. Oakhill's NPI number is 1356312466. It was assigned on January 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory J. Oakhill?
Dr. Gregory J. Oakhill is a hematologist and oncologist in Rogers, Arkansas. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Gregory J. Oakhill practice?
Dr. Oakhill practices at 808 S 52nd St, Rogers, AR 72758. Dr. Oakhill's primary practice is Highlands Oncology Group PA in Rogers, Arkansas. Dmand AI also links Dr. Oakhill to 3 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Gregory J. Oakhill's office phone number?
The practice phone on file for Dr. Oakhill is (479) 587-1700.
What is Dr. Gregory J. Oakhill's medical license number?
Dr. Oakhill holds Arkansas license E2513, one of the licenses on file in 2 states.
Which states has Dr. Gregory J. Oakhill been licensed in?
Dmand AI has state licenses on file for Dr. Oakhill in Arkansas and South Carolina.
Which hospitals is Dr. Gregory J. Oakhill affiliated with?
Dr. Oakhill is affiliated with Mercy Hospital Northwest Arkansas. Dmand AI links Dr. Oakhill to 3 more hospitals.
What medical group is Dr. Gregory J. Oakhill part of?
Dr. Oakhill is linked to Highlands Oncology Group.
Does Dr. Gregory J. Oakhill accept Medicare?
Yes. CMS data shows Dr. Oakhill billed Medicare for 296,572 services in 2024, and Dr. Oakhill accepts Medicare assignment.
What is Dr. Gregory J. Oakhill's MIPS score?
Dr. Oakhill's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Gregory J. Oakhill see?
CMS counts 1,509 Medicare patients who saw Dr. Oakhill in 2024, with an average age of 74.
What services does Dr. Gregory J. Oakhill bill to Medicare?
In 2024, Dr. Oakhill's most billed Medicare services were medicare temporary code (Q9967), medical supplies or transport (A9575) and injected or infused drug (J9271).
Where did Dr. Gregory J. Oakhill go to medical school?
Dr. Oakhill graduated from Medical University of South Carolina College of Medicine in 1994.
What drugs does Dr. Gregory J. Oakhill prescribe most?
In 2024 Medicare Part D data, Dr. Oakhill's most prescribed drugs by claims were Levothyroxine Sodium, Potassium Chloride and Ondansetron ODT.
Has Dr. Gregory J. Oakhill received payments from drug or device companies?
CMS Open Payments shows $12,733 in general payments to Dr. Oakhill from 74 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Gregory J. Oakhill been practicing?
Dr. Oakhill graduated from medical school in 1994, 32 years ago.
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