NPPES file of Aug 9, 2026

Steffi Sathiyaraj, MD

Nephrology Physician · McAllen, TX

Steffi Sathiyaraj, MD is a nephrology physician with a practice address in McAllen, Texas, and NPI 1225590904, issued on Apr 2, 2019. Check the license (Texas U8816, 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
1225590904
Name
Steffi Sathiyaraj
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
U8816 TX
Self-reported in NPPES; status is on the state search
Practice location
1901 S 1St St Ste 600, McAllen, TX 78503
Phone
(956) 631-6136
Enumerated
Apr 2, 2019
Record last updated
Jul 9, 2024
Fax
(956) 631-1250
Medicare enrollment
Enrolled (PECOS I20240626004450); 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.
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Also registered at 1901 S 1St St Ste 600

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

  1. Jesus Gonzalez, PAPhysician Assistant1538424445
  2. Mark Liong, M.D.Nephrology Physician1346422078
  3. John Manllo Dieck, M.D.Internal Medicine Physician1578855680
  4. Ana Ortega, PA-CPhysician Assistant1255968525
  5. Roberto Ramirez, APRN, FNP-CFamily Nurse Practitioner1629669973
  6. Liliana Rios Rojas, M.D.Nephrology Physician1598027930

Verify Steffi Sathiyaraj in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license U8816
    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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95% fewer Medicare Part D claims than the average nephrology physician in 2024

68 Medicare Part D claims for 37 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Steffi Sathiyaraj68
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium13 claims
  2. Lisinopril11 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: $518.59

11 payments; by number, the most common kind was food and beverage; the largest payer was Travere Therapeutics, 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. Steffi Sathiyaraj$518.59
  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. South Texas Kidney Specialists, P.A.McAllen, TX

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

Steffi Sathiyaraj among 1,159 nephrology physician records in Texas

Steffi Sathiyaraj, 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 2019, is newer than 94% of them.

  • NPI issued2019 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated2024 · median 2001 among the 954 with a school on file
  • Record last updated2024 · 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. Ricardo Baltodano, M.D.McAllen, TX 785031376705244
  2. Angelito De Dios, M.D.McAllen, TX 785031902823974
  3. Kotthegal Eshwar, MDMcAllen, TX 785031831198654
  4. Juan Guardia, MDMcAllen, TX 785031407855224
  5. Andrew Levine, M.D.McAllen, TX 785031972574010
  6. Mark Liong, M.D.McAllen, TX 785031346422078
  7. Salil Mangi, MDMcAllen, TX 785031881693695
  8. Roberto Manllo-Karim, MDMcAllen, TX 785031891794616

Common questions

What is Steffi Sathiyaraj, MD's NPI number?

Steffi Sathiyaraj, MD's National Provider Identifier (NPI) is 1225590904, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Steffi Sathiyaraj, MD located?

The NPPES record lists a practice address at 1901 S 1St St Ste 600, McAllen, TX, 78503. Phone: (956) 631-6136. Providers update this record themselves, so call before visiting.

How can I verify Steffi Sathiyaraj, MD's license?

NPPES lists Texas license number U8816, 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 Steffi Sathiyaraj, MD prescribe under Medicare Part D?

In 2024, Steffi Sathiyaraj, MD had 68 Medicare Part D claims for 37 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.