NPPES file of Aug 9, 2026

Ahmad Adel Taha Abu-Heija, M.D.

Gastroenterology Physician · Oak Ridge, TN

Ahmad Adel Taha Abu-Heija, M.D. is a gastroenterology physician with a practice address in Oak Ridge, Tennessee, and NPI 1134574072, issued on Apr 28, 2016. Check the license (Tennessee 66423, as entered in NPPES) on the Tennessee Board of Medical Examiners; 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
1134574072
Name
Ahmad Adel Taha Abu-Heija
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
66423 TN
Self-reported in NPPES; status is on the state search
Practice location
988 Oak Ridge Turnpike, Oak Ridge, TN 37830
Phone
(865) 483-4366
Enumerated
Apr 28, 2016
Record last updated
Aug 20, 2024
Fax
(865) 374-2090
Medicaid ID
Q084867 TN
Medicare enrollment
Enrolled (PECOS I20231009000943); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 988 Oak Ridge Turnpike

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

  1. Clement Block, M.D.Gastroenterology Physician1528051174
  2. Gary Wells, MDNephrology Physician1669543328

Verify Ahmad Adel Taha Abu-Heija in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 66423
    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 Tennessee license search

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18% more Medicare Part D claims than the average gastroenterology physician in 2024

957 Medicare Part D claims for 436 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Ahmad Abu-Heija957
  2. Specialty average811

Most prescribed

  1. Omeprazole206 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf127 claims
  3. Pantoprazole Sodium87 claims
  4. Gavilyte-G66 claims
  5. Linzess61 claims
  6. Gavilyte-C58 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.

Bills Medicare through one group practice

  1. Covenant Medical Group IncOak Ridge, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ahmad Adel Taha Abu-Heija among 384 gastroenterology physician records in Tennessee

Ahmad Adel Taha Abu-Heija, M.D. is one of 384 gastroenterology physician records with a practice address in Tennessee. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 91% of them.

  • NPI issued2016 · 91% of these records are older, 8% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2015 · median 2001 among the 255 with a school on file
  • Record last updated2024 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Tennessee

There are 384 gastroenterology physician records in Tennessee.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Clement Block, M.D.Oak Ridge, TN 378301528051174
  2. Charles Gholson, MDOak Ridge, TN 378301932192499
  3. Venkata Gourineni, MDOak Ridge, TN 378301972733616
  4. Allison Locke, MDOak Ridge, TN 378301518256148
  5. Kenneth Luckmann, MDOak Ridge, TN 378301679566210
  6. Charles Orton, MDOak Ridge, TN 378301316262777
  7. Phillip Ricks, MDOak Ridge, TN 378301467445015
  8. Zachary Sherrill, DOOak Ridge, TN 378301942704689

Common questions

What is Ahmad Adel Taha Abu-Heija, M.D.'s NPI number?

Ahmad Adel Taha Abu-Heija, M.D.'s National Provider Identifier (NPI) is 1134574072, issued on Apr 28, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Ahmad Adel Taha Abu-Heija, M.D. located?

The NPPES record lists a practice address at 988 Oak Ridge Turnpike, Oak Ridge, TN, 37830. Phone: (865) 483-4366. Providers update this record themselves, so call before visiting.

How can I verify Ahmad Adel Taha Abu-Heija, M.D.'s license?

NPPES lists Tennessee license number 66423, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ahmad Adel Taha Abu-Heija, M.D. prescribe under Medicare Part D?

In 2024, Ahmad Adel Taha Abu-Heija, M.D. had 957 Medicare Part D claims for 436 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.