NPPES file of Aug 9, 2026

Robert Jeffrey Eisenach, M.D.

Family Medicine Physician · Little Rock, AR

Robert Jeffrey Eisenach, M.D. is a family medicine physician with a practice address in Little Rock, Arkansas, and NPI 1699767772, issued on Aug 16, 2005. Check the license (Arkansas R2327, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699767772
Name
Robert Jeffrey Eisenach
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
R2327 AR
Self-reported in NPPES; status is on the state search
Practice location
4202 S University Ave, Little Rock, AR 72204
Phone
(501) 562-4838
Enumerated
Aug 16, 2005
Record last updated
Feb 17, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(501) 562-1958
Medicaid ID
105086001 AR
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4202 S University Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Samuel Allen, P.T.Physical Therapist1093901506
  2. Julia Brooks, RDRegistered Dietitian1407026370
  3. Robert Casper, MDFamily Medicine Physician1568469179
  4. Daniel Dillard, MDFamily Medicine Physician1477550093
  5. Susan Ebel, MDEmergency Medicine Physician1376525394
  6. Irina Esteva, M.D.Family Medicine Physician1184985905

Verify Robert Jeffrey Eisenach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license R2327
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arkansas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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100% fewer Medicare Part D claims than the average family medicine physician in 2024

13 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Robert Eisenach13
  2. Specialty average3,544

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.

Robert Jeffrey Eisenach among 1,681 family medicine physician records in Arkansas

Robert Jeffrey Eisenach, M.D. is one of 1,681 family medicine physician records with a practice address in Arkansas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2012 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

160 family medicine physician records list a practice address in Little Rock

They are 160 of the 13,172 NPPES records with a practice address in Little Rock, and 1,681 family medicine physician records in Arkansas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Robert Casper, MDLittle Rock, AR 722041568469179
  2. Solonica Cooper, APRNLittle Rock, AR 722041386353670
  3. Daniel Dillard, MDLittle Rock, AR 722041477550093
  4. Irina Esteva, M.D.Little Rock, AR 722041184985905
  5. David Hicks, M.D.Little Rock, AR 722041720070816
  6. Robin Jeffers Perry, M.D.Little Rock, AR 722041780685123
  7. Derek Lewis, M.D.Little Rock, AR 722041407810641
  8. Katherine Mitchell, MDLittle Rock, AR 722041871575886

Common questions

What is Robert Jeffrey Eisenach, M.D.'s NPI number?

Robert Jeffrey Eisenach, M.D.'s National Provider Identifier (NPI) is 1699767772, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert Jeffrey Eisenach, M.D. located?

The NPPES record lists a practice address at 4202 S University Ave, Little Rock, AR, 72204. Phone: (501) 562-4838. Providers update this record themselves, so call before visiting.

How can I verify Robert Jeffrey Eisenach, M.D.'s license?

NPPES lists Arkansas license number R2327, 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 Robert Jeffrey Eisenach, M.D. prescribe under Medicare Part D?

In 2024, Robert Jeffrey Eisenach, M.D. had 13 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.