NPPES file of Aug 9, 2026

E. John R. Samuel, M.D.

Cardiovascular Disease Physician · Spring, TX

E. John R. Samuel, M.D. is a cardiovascular disease physician with a practice address in Spring, Texas, and NPI 1801862156, issued on Feb 27, 2006. Check the license (Texas G6391, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801862156
Name
E. John R. Samuel
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
G6391 TX
Self-reported in NPPES; status is on the state search
Practice location
21848 Holzwarth RD Ste 110, Spring, TX 77388
Phone
(281) 446-2999
Enumerated
Feb 27, 2006
Record last updated
Apr 16, 2025
Medicaid ID
127469801 TX
Medicare enrollment
Enrolled (PECOS I20051220000252); 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 21848 Holzwarth RD Ste 110

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

  1. Paulraj Samuel, M.D.Interventional Cardiology Physician1033360748
  2. Madeline Woelfel, MSN, APRN, FNP-CFamily Nurse Practitioner1457289043

Verify E. John R. Samuel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G6391
    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

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3.1 times the Medicare Part D claims of the average cardiovascular disease physician in 2024

9,672 Medicare Part D claims for 696 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. E. John Samuel9,672
  2. Specialty average3,078

Most prescribed

  1. Rosuvastatin Calcium996 claims
  2. Amlodipine Besylate786 claims
  3. Losartan Potassium632 claims
  4. Carvedilol528 claims
  5. Ezetimibe527 claims
  6. Metoprolol Succinate474 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score62.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $743.19

24 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. E. John Samuel$743.19
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. E. John R. Samuel, MD, PAHumble, TX
  2. Houston Cardiovascular Assoc PAHouston, TX

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

E. John R. Samuel among 1,603 cardiovascular disease physician records in Texas

E. John R. Samuel, M.D. is one of 1,603 cardiovascular disease physician records with a practice address in Texas. 88% 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 20% of them.

  • NPI issued2006 · 20% of these records are older, 42% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1974 · median 1998 among the 1,219 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Texas

There are 1,603 cardiovascular disease physician records in Texas.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Muzamil KhawajaSpring, TX 773891023570876
  2. Karsh Gaurav, DOShenandoah, TX 773851497216188
  3. Sapna Legha, MDShenandoah, TX 773851073899506
  4. Juan Rozo, M.D.Shenandoah, TX 773851639164239
  5. Kanval ShahShenandoah, TX 773851497287858
  6. Ali Ayoubi, M.D.Shenandoah, TX 773841104948017
  7. Claudine Dumandan, M.D.Shenandoah, TX 773841508290776
  8. Jennifer Heath, RN, ANP-CThe Woodlands, TX 773841538408984

Common questions

What is E. John R. Samuel, M.D.'s NPI number?

E. John R. Samuel, M.D.'s National Provider Identifier (NPI) is 1801862156, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is E. John R. Samuel, M.D. located?

The NPPES record lists a practice address at 21848 Holzwarth RD Ste 110, Spring, TX, 77388. Phone: (281) 446-2999. Providers update this record themselves, so call before visiting.

How can I verify E. John R. Samuel, M.D.'s license?

NPPES lists Texas license number G6391, 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 E. John R. Samuel, M.D. prescribe under Medicare Part D?

In 2024, E. John R. Samuel, M.D. had 9,672 Medicare Part D claims for 696 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is E. John R. Samuel, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.