NPPES file of Aug 9, 2026

Estephan N. Zayat, MD

Gastroenterology Physician · Wichita, KS

Estephan N. Zayat, MD is a gastroenterology physician with a practice address in Wichita, Kansas, and NPI 1558361261, issued on Jul 22, 2005. Check the license (Kansas 04-25555, as entered in NPPES) on the Kansas State Board of Healing Arts; 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
1558361261
Name
Estephan N. Zayat
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
04-25555 KS
Self-reported in NPPES; status is on the state search
Practice location
3121 N Webb RD, Wichita, KS 67226
Phone
(316) 261-3130
Enumerated
Jul 22, 2005
Record last updated
Aug 3, 2022
Fax
(316) 261-3275
Medicaid ID
100181290C KS
Medicare enrollment
Enrolled (PECOS I20040121000841); 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 3121 N Webb RD

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

  1. Natalie FarhaGastroenterology Physician1245791599
  2. Gebran Khneizer, M.D.Gastroenterology Physician1386039477
  3. Emma Koch, PA-CPhysician Assistant1649150566
  4. Michael Lievens, MDGastroenterology Physician1225038029
  5. Lydia Renich, PAPhysician Assistant1659564409
  6. Meredith Stringer, BSN, APRN, FNP-CFamily Nurse Practitioner1184006975

Verify Estephan N. Zayat in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 04-25555
    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 Kansas 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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2.1 times the Medicare Part D claims of the average gastroenterology physician in 2024

1,735 Medicare Part D claims for 502 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Estephan Zayat1,735
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium305 claims
  2. Omeprazole210 claims
  3. Famotidine143 claims
  4. Gavilyte-G95 claims
  5. Linzess64 claims
  6. Dicyclomine Hcl61 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): 100 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. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $1,377.00

36 payments; by number, the most common kind was food and beverage; the largest payer was Ipsen Biopharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Estephan Zayat$1,377.00
  2. Specialty average$5,015.95

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. Kansas Gastroenterology LLCWichita, KS

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

Estephan N. Zayat among 111 gastroenterology physician records in Kansas

Estephan N. Zayat, MD is one of 111 gastroenterology physician records with a practice address in Kansas. 87% 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, 93% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1991 · median 2001 among the 69 with a school on file
  • Record last updated2022 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Kansas

There are 111 gastroenterology physician records in Kansas.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Natalie FarhaWichita, KS 672261245791599
  2. Gebran Khneizer, M.D.Wichita, KS 672261386039477
  3. Michael Lievens, MDWichita, KS 672261225038029
  4. Bassem Matta, M.D.Wichita, KS 672261114366515
  5. William Salyers, MD, MPHWichita, KS 672261417968041
  6. Winnie Sheu Woc, MDWichita, KS 672261295142768
  7. Obada Tayyem, MDWichita, KS 672261487006672
  8. Nathan Tofteland, MDWichita, KS 672261528280328

Common questions

What is Estephan N. Zayat, MD's NPI number?

Estephan N. Zayat, MD's National Provider Identifier (NPI) is 1558361261, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Estephan N. Zayat, MD located?

The NPPES record lists a practice address at 3121 N Webb RD, Wichita, KS, 67226. Phone: (316) 261-3130. Providers update this record themselves, so call before visiting.

How can I verify Estephan N. Zayat, MD's license?

NPPES lists Kansas license number 04-25555, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Estephan N. Zayat, MD prescribe under Medicare Part D?

In 2024, Estephan N. Zayat, MD had 1,735 Medicare Part D claims for 502 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Estephan N. Zayat, MD's MIPS final score?

The 2023 MIPS final score is 100 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.