NPPES file of Aug 9, 2026

Anath Christopher Lionel, MD, PHD

Hematology (Internal Medicine) Physician · Houston, TX

Anath Christopher Lionel, MD, PHD is a hematology (internal medicine) physician with a practice address in Houston, Texas, and NPI 1003595919, issued on Jul 17, 2023. Check the license (Texas V6627, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003595919
Name
Anath Christopher Lionel
Credential
MD, PHD
Primary taxonomy
Hematology (Internal Medicine) Physician 207RH0000X
License number
V6627 TX
Self-reported in NPPES; status is on the state search
Practice location
1515 Holcombe Blvd, Houston, TX 77030
Phone
(713) 792-6161
Enumerated
Jul 17, 2023
Record last updated
Jul 9, 2025
Medicare enrollment
Enrolled (PECOS I20250718004195); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1515 Holcombe Blvd

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

  1. Ashley Aaroe, MDNeurology Physician1902295793
  2. Linda Abad, PA-CPhysician Assistant1063928240
  3. Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
  4. Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
  5. James Abbruzzese, M.D.Medical Oncology Physician1134233224
  6. Karim Abdeldaem, MDEmergency Medicine Physician1558056200

Verify Anath Christopher Lionel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license V6627
    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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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).

Hematology (Internal Medicine) Physician providers in Texas

There are 73 hematology (internal medicine) physician records in Texas.

Other hematology (internal medicine) physician records in Texas

  1. Mohammad Abdulla, MDHouston, TX1912884222
  2. Tareq Abuasab, MDHouston, TX1598430043
  3. Aimaz Afrough, M.D.Dallas, TX1477964518
  4. Nisar Ahmad, M.D.Harlingen, TX1659390045
  5. Yosra Aljawai, M.D.Houston, TX1508355256
  6. Yesid Alvarado Valero, M.D.Houston, TX1982876272
  7. Effrosyni Apostolidou, MD, PHDHouston, TX1386872687
  8. Caroline Arber Barth, M.D.Houston, TX1750750899
  9. Kelty Baker, MDHouston, TX1710090857
  10. Robert Bast, MDHouston, TX1013901008

Common questions

What is Anath Christopher Lionel, MD, PHD's NPI number?

Anath Christopher Lionel, MD, PHD's National Provider Identifier (NPI) is 1003595919, issued on Jul 17, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Anath Christopher Lionel, MD, PHD located?

The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.

How can I verify Anath Christopher Lionel, MD, PHD's license?

NPPES lists Texas license number V6627, 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.

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.