Gregory J. Oakhill, M.D.
Hematology & Oncology Physician · Fayetteville, AR
Gregory J. Oakhill, M.D. is a hematology & oncology physician with a practice address in Fayetteville, Arkansas, and NPI 1356312466, issued on Jan 27, 2006. Check the license (Arkansas E2513, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Oakhill
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- E2513 AR
18089 SC
Self-reported in NPPES; status is on the state search - Practice location
- 3232 N Northhills Blvd, Fayetteville, AR 72703
- Phone
- (479) 587-1700
- Enumerated
- Jan 27, 2006
- Record last updated
- Jul 6, 2026
- Fax
- (479) 587-1366
- Medicaid IDs
- 204973002 MO
100004450A OK
139985001 AR - Medicare enrollment
- Enrolled (PECOS I20051110000993); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 103 in Arkansas → Look up another NPI →
Also registered at 3232 N Northhills Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- K'Anne Arthur, MDHematology & Oncology Physician1144663923
- Brooke Brander, DOHematology & Oncology Physician1083838239
- Kyle Cook, RPHOncology Pharmacist1063683308
- Megan Davis, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1255623609
- Olivia HarberGenetic Counselor (M.S.)1053936047
- Malcolm Hayward, MDHematology & Oncology Physician1477524668
Verify Gregory J. Oakhill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E2513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,669 Medicare Part D claims for 478 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 185 claims were for opioids.
Most prescribed
- Levothyroxine Sodium203 claims
- Potassium Chloride168 claims
- Ondansetron Odt120 claims
- Prochlorperazine Maleate91 claims
- Hydrocodone-Acetaminophen86 claims
- Letrozole80 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,597.17
85 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Highlands Oncology Group PASpringdale, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory J. Oakhill among 103 hematology & oncology physician records in Arkansas
Gregory J. Oakhill, M.D. is one of 103 hematology & oncology physician records with a practice address in Arkansas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 51% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1994 · median 2002 among the 80 with a school on file
- Record last updated2026 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Arkansas
There are 103 hematology & oncology physician records in Arkansas.
All 103 in Arkansas → Every provider in Fayetteville → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- K'Anne Arthur, MDFayetteville, AR 727031144663923
- Brooke Brander, DOFayetteville, AR 727031083838239
- Lynsay Brautnick, M.D.Fayetteville, AR 727031548317340
- Malcolm Hayward, MDFayetteville, AR 727031477524668
- Matthew Lockwood, MDFayetteville, AR 727031265875470
- Stephan Rosenfeld, M.D.Fayetteville, AR 727031083685283
- Mitchell Ross, MDFayetteville, AR 727031275995540
- Jamie Lee AldakkourMountain Home, AR 726531366070179
Common questions
What is Gregory J. Oakhill, M.D.'s NPI number?
Gregory J. Oakhill, M.D.'s National Provider Identifier (NPI) is 1356312466, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Oakhill, M.D. located?
The NPPES record lists a practice address at 3232 N Northhills Blvd, Fayetteville, AR, 72703. Phone: (479) 587-1700. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Oakhill, M.D.'s license?
NPPES lists Arkansas license number E2513, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory J. Oakhill, M.D. prescribe under Medicare Part D?
In 2024, Gregory J. Oakhill, M.D. had 2,669 Medicare Part D claims for 478 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Gregory J. Oakhill, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.