NPPES file of Aug 9, 2026

Shah Faizul Islam, M.D.

Nephrology Physician · Corpus Christi, TX

Shah Faizul Islam, M.D. is a nephrology physician with a practice address in Corpus Christi, Texas, and NPI 1841293727, issued on May 24, 2005. Check the license (Texas K8227, 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
1841293727
Name
Shah Faizul Islam
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
K8227 TX
Self-reported in NPPES; status is on the state search
Practice location
1521 S Staples St, Corpus Christi, TX 78404
Phone
(361) 887-8451
Enumerated
May 24, 2005
Record last updated
Apr 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(361) 887-6126
Medicaid ID
390006277 TX
Medicare enrollment
Enrolled (PECOS I20070416000129); 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 1521 S Staples St

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

  1. Milton Beato, M.D.Cardiovascular Disease Physician1770577439
  2. Frank Bonikowski, M.D.Neurology Physician1700870508
  3. Jacqueline Cohn, M.D.Endocrinology, Diabetes & Metabolism Physician1851378863
  4. Jack Cortese, M.D.Nephrology Physician1659374577
  5. Rafael Coutin, M.D.Cardiovascular Disease Physician1679574230
  6. Monica Deitz, FNPFamily Nurse Practitioner1356902837

Verify Shah Faizul Islam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license K8227
    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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3% fewer Medicare Part D claims than the average nephrology physician in 2024

1,425 Medicare Part D claims for 227 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Shah Islam1,425
  2. Specialty average1,465

Most prescribed

  1. Furosemide218 claims
  2. Losartan Potassium126 claims
  3. Hydralazine Hcl124 claims
  4. Amlodipine Besylate120 claims
  5. Sevelamer Carbonate108 claims
  6. Calcium Acetate103 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: $152.36

8 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. 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. Shah Islam$152.36
  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.

Bills Medicare through one group practice

  1. Kidney Specialists OF South Texas, P.A.Corpus Christi, TX

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

Shah Faizul Islam among 1,159 nephrology physician records in Texas

Shah Faizul Islam, M.D. 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
  • Graduated1984 · median 2001 among the 954 with a school on file
  • Record last updated2020 · 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. Deane Charba, MDCorpus Christi, TX 784041245281492
  2. Jack Cortese, M.D.Corpus Christi, TX 784041659374577
  3. Samer Jifi-Bahlool, MDCorpus Christi, TX 784041881621118
  4. Benjamin Lee, MDCorpus Christi, TX 784041871784967
  5. Chijioke Ogbu, M.D., MPHCorpus Christi, TX 784041881897288
  6. Geeta Reddy, M.D.Corpus Christi, TX 784041144223876
  7. Zakaria Saleem, MDCorpus Christi, TX 784041275758278
  8. William Shaffer, M.D.Corpus Christi, TX 784041972506913

Common questions

What is Shah Faizul Islam, M.D.'s NPI number?

Shah Faizul Islam, M.D.'s National Provider Identifier (NPI) is 1841293727, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Shah Faizul Islam, M.D. located?

The NPPES record lists a practice address at 1521 S Staples St, Corpus Christi, TX, 78404. Phone: (361) 887-8451. Providers update this record themselves, so call before visiting.

How can I verify Shah Faizul Islam, M.D.'s license?

NPPES lists Texas license number K8227, 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 Shah Faizul Islam, M.D. prescribe under Medicare Part D?

In 2024, Shah Faizul Islam, M.D. had 1,425 Medicare Part D claims for 227 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.