NPPES file of Aug 9, 2026

Guillermo Juan Morell, MD

Nephrology Physician · Houston, TX

Guillermo Juan Morell, MD is a nephrology physician with a practice address in Houston, Texas, and NPI 1346238268, issued on Oct 13, 2005. Check the license (Texas H3713 123321, 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
1346238268
Name
Guillermo Juan Morell
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
H3713 123321 TX
Self-reported in NPPES; status is on the state search
Practice location
6560 Fannin St, Houston, TX 77030
Phone
(713) 796-0800
Enumerated
Oct 13, 2005
Record last updated
Jun 30, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(713) 796-0809
Medicaid ID
1342966-08 TX
Medicare enrollment
Enrolled (PECOS I20050805000172); accepts Medicare assignment
Medical or professional school
University Of Puerto Rico School Of Medicine, 1985
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 6560 Fannin St

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

  1. Guelbert Abellana, N.P.Nurse Practitioner1457605156
  2. Ahmed Albayar, MDStudent in an Organized Health Care Education/Training Program1417694142
  3. Alfonso Aldama, MDNeurological Surgery Physician1164415170
  4. David Alfi, D.D.S., M.D.Oral and Maxillofacial Surgery (Dentist)1245424019
  5. Eugene Alford, MDOtolaryngology/Facial Plastic Surgery Physician1093700387
  6. Rakshanda Aslam, MDInternal Medicine Physician1720260268

Verify Guillermo Juan Morell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license H3713 123321
    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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21% fewer Medicare Part D claims than the average nephrology physician in 2024

1,153 Medicare Part D claims for 99 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. 34 claims were for opioids.

  1. Guillermo Morell1,153
  2. Specialty average1,465

Most prescribed

  1. Farxiga55 claims
  2. Sevelamer Carbonate49 claims
  3. Atorvastatin Calcium37 claims
  4. Levothyroxine Sodium36 claims
  5. Carvedilol35 claims
  6. Gabapentin34 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.

Industry payments in 2024: $283.10

11 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Guillermo Morell$283.10
  2. Specialty average$3,091.37

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

Guillermo Juan Morell among 1,159 nephrology physician records in Texas

Guillermo Juan Morell, MD is one of 1,159 nephrology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1985 · median 2001 among the 954 with a school on file
  • Record last updated2008 · 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 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Texas

There are 1,159 nephrology physician records in Texas.

The 8 nephrology physician records with the nearest ZIP codes

  1. Bernardino Abaya, M.D.Houston, TX 770301740262013
  2. Catherine Brown, PA-CHouston, TX 770301841288313
  3. Joey Buquing, M.D.Houston, TX 770301255335279
  4. Joslyn Campbell, MDHouston, TX 770301912909847
  5. Dolon Das, MDHouston, TX 770301619972692
  6. Stevan Dinerstein, M.D.Houston, TX 770301932180791
  7. Stephen Fadem, MDHouston, TX 770301144224163
  8. Juan Gonzalez, MDHouston, TX 770301598767253

Common questions

What is Guillermo Juan Morell, MD's NPI number?

Guillermo Juan Morell, MD's National Provider Identifier (NPI) is 1346238268, issued on Oct 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Guillermo Juan Morell, MD located?

The NPPES record lists a practice address at 6560 Fannin St, Houston, TX, 77030. Phone: (713) 796-0800. Providers update this record themselves, so call before visiting.

How can I verify Guillermo Juan Morell, MD's license?

NPPES lists Texas license number H3713 123321, 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 Guillermo Juan Morell, MD prescribe under Medicare Part D?

In 2024, Guillermo Juan Morell, MD had 1,153 Medicare Part D claims for 99 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.