NPPES file of Aug 9, 2026

Riyad Kherallah, MD

Internal Medicine Physician · Houston, TX

Riyad Kherallah, MD is an internal medicine physician with a practice address in Houston, Texas, and NPI 1528564127, issued on Apr 3, 2018. Check the license (Texas T0537, as entered in NPPES) on the Texas 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
1528564127
Name
Riyad Kherallah
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
T0537 TX
Self-reported in NPPES; status is on the state search
Practice location
2002 Holcombe Blvd, Houston, TX 77030
Phone
(734) 277-8235
Enumerated
Apr 3, 2018
Record last updated
May 10, 2022
Medicare enrollment
Enrolled (PECOS I20211108002944); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2018
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 2002 Holcombe Blvd

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

  1. Ahemad Ababor, PHARM DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1538845698
  2. Arqam AbdaliPsychiatry Physician1730615337
  3. Whitney Abner, LMSWSocial Worker1639726300
  4. Rigat AbrahaPharmacist1508975418
  5. Legi Abraham, RNRegistered Nurse1730014226
  6. Melissa Abraham, LMSWSocial Worker1205358280

Verify Riyad Kherallah in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license T0537
    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 Texas 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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

28 Medicare Part D claims for 12 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Riyad Kherallah28
  2. Specialty average3,176

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: $1,722.63

20 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Riyad Kherallah$1,722.63
  2. Specialty average$1,303.06

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

  1. Physicians Referral ServiceHouston, TX

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

Riyad Kherallah among 9,175 internal medicine physician records in Texas

Riyad Kherallah, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.

  • NPI issued2018 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2018 · median 2004 among the 6,088 with a school on file
  • Record last updated2022 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,488 internal medicine physician records list a practice address in Houston

They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ketti Awad, MDHouston, TX 770301740284710
  2. Parikshet Babber, MDHouston, TX 770301114915816
  3. James Baker, MDHouston, TX 770301477549566
  4. Ana Blackmon, M.D.Houston, TX 770301962402446
  5. Maria Cruz-Carreras, MDHouston, TX 770301376533893
  6. Marina George, MDHouston, TX 770301780680009
  7. Barry Goodfriend, MDHouston, TX 770301588666218
  8. Betty Halpern, MDHouston, TX 770301942292685

Common questions

What is Riyad Kherallah, MD's NPI number?

Riyad Kherallah, MD's National Provider Identifier (NPI) is 1528564127, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Riyad Kherallah, MD located?

The NPPES record lists a practice address at 2002 Holcombe Blvd, Houston, TX, 77030. Phone: (734) 277-8235. Providers update this record themselves, so call before visiting.

How can I verify Riyad Kherallah, MD's license?

NPPES lists Texas license number T0537, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Riyad Kherallah, MD prescribe under Medicare Part D?

In 2024, Riyad Kherallah, MD had 28 Medicare Part D claims for 12 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.