Jason W. Hammack, M.D.
Specialist · Sherwood, AR
Jason W. Hammack, M.D. is a specialist with a practice address in Sherwood, Arkansas, and NPI 1699725838, issued on May 10, 2006. Check the license (Arkansas E-4771, as entered in NPPES) with the Arkansas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jason W. Hammack
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- E-4771 AR
Self-reported in NPPES; status is on the state search - Practice location
- 2215 Wildwood Ave, Sherwood, AR 72120
- Phone
- (501) 753-2424
- Enumerated
- May 10, 2006
- Record last updated
- Jul 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (501) 753-2733
- Medicare enrollment
- Enrolled (PECOS I20061004000563); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest specialist records → All 502 in Arkansas → Look up another NPI →
Also registered at 2215 Wildwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Taylor Barger, APRNAcute Care Nurse Practitioner1407696123
- Kathryn Chenault, MDNeurology Physician1942290481
- Susan Delap, M.D.Specialist1790756195
- Brandon Duke, MDHospitalist Physician1124641816
- David Greenwood, M.D.Specialist1033160544
- Keithlea Griffin, BSN, RNCritical Care Medicine Registered Nurse1861223752
Verify Jason W. Hammack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arkansas board licenses this profession
Search for license E-4771Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average specialist in 2024
336 Medicare Part D claims for 91 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Biktarvy54 claims
- Ceftriaxone32 claims
- Vancomycin Hcl31 claims
- Cefazolin Sodium25 claims
- Cephalexin24 claims
- Fluconazole20 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.
Industry payments in 2024: $90.86
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Jason W. Hammack among 502 specialist records in Arkansas
Jason W. Hammack, M.D. is one of 502 specialist records with a practice address in Arkansas. 18% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 67% newer
- In a Medicare fileYes · 18% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2001 · median 1990 among the 55 with a school on file
- Record last updated2008 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 specialist records list a practice address in Sherwood
They are 5 of the 600 NPPES records with a practice address in Sherwood, and 502 specialist records in Arkansas.
All 502 in Arkansas → Every provider in Sherwood → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Susan Delap, M.D.Sherwood, AR 721201790756195
- David Greenwood, M.D.Sherwood, AR 721201033160544
- Lee Kendrick, M.D.Sherwood, AR 721201780655167
- Candi Livingston, PTASherwood, AR 721201225334626
- Gary Barton, M.D.North Little Rock, AR 721171265473821
- Steven Clift, M.D.North Little Rock, AR 721171285681965
- Holly Cockrum, M.D.North Little Rock, AR 721171396788519
- Timothy Cook, M.D.North Little Rock, AR 721171659342038
Common questions
What is Jason W. Hammack, M.D.'s NPI number?
Jason W. Hammack, M.D.'s National Provider Identifier (NPI) is 1699725838, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jason W. Hammack, M.D. located?
The NPPES record lists a practice address at 2215 Wildwood Ave, Sherwood, AR, 72120. Phone: (501) 753-2424. Providers update this record themselves, so call before visiting.
How can I verify Jason W. Hammack, M.D.'s license?
NPPES lists Arkansas license number E-4771, as entered by the provider. Search the Arkansas board that licenses this profession; the NPPES record confirms identity only.
How much does Jason W. Hammack, M.D. prescribe under Medicare Part D?
In 2024, Jason W. Hammack, M.D. had 336 Medicare Part D claims for 91 beneficiaries; the average among specialist prescribers was 1,380. 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.