NPPES file of Aug 9, 2026

Clayton A. McCuan, DO

Internal Medicine Physician · Marble Falls, TX

Clayton A. McCuan, DO is an internal medicine physician with a practice address in Marble Falls, Texas, and NPI 1235321126, issued on Aug 14, 2007. Check the license (Texas N5854, 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
1235321126
Name
Clayton A. McCuan
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
N5854 TX
Self-reported in NPPES; status is on the state search
Practice location
810 W Highway 71, Marble Falls, TX 78654
Phone
(830) 201-7100
Enumerated
Aug 14, 2007
Record last updated
Feb 17, 2023
Fax
(830) 201-7336
Medicaid IDs
215957601 TX
215957602 TX
215957603 TX
Medicare enrollment
Enrolled (PECOS I20101101000481); 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.
Download card Updates feed

Also registered at 810 W Highway 71

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

  1. Raju Behara, MDAnesthesiology Physician1558990176
  2. Judith Brown, D.OObstetrics & Gynecology Physician1376923748
  3. Robert Browning, CRNACertified Registered Nurse Anesthetist1417972464
  4. Sara Browning, CRNACertified Registered Nurse Anesthetist1104255801
  5. Stefan Buca, M.D.Emergency Medicine Physician1417121799
  6. John Calder, M.D.Diagnostic Radiology Physician1740240829

Verify Clayton A. McCuan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N5854
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

91% fewer Medicare Part D claims than the average internal medicine physician in 2024

282 Medicare Part D claims for 125 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 12 claims were for opioids.

  1. Clayton McCuan282
  2. Specialty average3,176

Most prescribed

  1. Eliquis24 claims
  2. Atorvastatin Calcium17 claims
  3. Furosemide14 claims
  4. Clopidogrel13 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 2 group practices

  1. Ascension SetonSmithville, TX
  2. Ipc Healthcare Services OF Texas PLLCAustin, TX

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

15 internal medicine physician records list a practice address in Marble Falls

They are 15 of the 354 NPPES records with a practice address in Marble Falls, and 9,175 internal medicine physician records in Texas.

Other internal medicine physician records in Texas

  1. Muhammad A. Sattar, MDDallas, TX1760465553
  2. Gayatri Aaluri, MDGalveston, TX1821928508
  3. Anunaya AashishDenton, TX1134246374
  4. Queenie Ann Abad, M.D.San Antonio, TX1174979785
  5. Fuad Abaleka, M.DLubbock, TX1861925596
  6. Carol Abalihi, M.D.El Paso, TX1326136243
  7. Oliverio Abarca Guzman, MDHarlingen, TX1346972940
  8. Obinna Abaribe, M.DMansfield, TX1457704355
  9. Enyinnaya Abarikwu, MDTyler, TX1174788178
  10. Sulaiman Abawi, D.O.Frisco, TX1780845255

Common questions

What is Clayton A. McCuan, DO's NPI number?

Clayton A. McCuan, DO's National Provider Identifier (NPI) is 1235321126, issued on Aug 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Clayton A. McCuan, DO located?

The NPPES record lists a practice address at 810 W Highway 71, Marble Falls, TX, 78654. Phone: (830) 201-7100. Providers update this record themselves, so call before visiting.

How can I verify Clayton A. McCuan, DO's license?

NPPES lists Texas license number N5854, 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 Clayton A. McCuan, DO prescribe under Medicare Part D?

In 2024, Clayton A. McCuan, DO had 282 Medicare Part D claims for 125 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.