NPPES file of Aug 9, 2026

Koushik Kumar Das, MD

Gastroenterology Physician · Saint Louis, MO

Koushik Kumar Das, MD is a gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1023245859, issued on Jun 19, 2009. Check the license (Missouri 2016013228, as entered in NPPES) on the Missouri Board of Registration for the 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
1023245859
Name
Koushik Kumar Das
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
2016013228 MO
Self-reported in NPPES; status is on the state search
Practice location
5201 Mid America Plz, Saint Louis, MO 63129
Phone
(314) 747-2066
Enumerated
Jun 19, 2009
Record last updated
Apr 17, 2025
Fax
(314) 747-1277
Medicaid ID
200033058 MO
Medicare enrollment
Enrolled (PECOS I20160629001122); accepts Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 2009
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 5201 Mid America Plz

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

  1. Linda Boucher, FNPFamily Nurse Practitioner1437634904
  2. Angela Demetrulias, ODOptometrist1194013086
  3. Nicole Ducharme, DOEndocrinology, Diabetes & Metabolism Physician1346208394
  4. Tiffany Dy, MDAllergy & Immunology (Internal Medicine) Physician1528292174
  5. Omar Elsayed-Ali, MDAllergy & Immunology (Internal Medicine) Physician1174064596
  6. Senada Fenelon, AGNPGerontology Nurse Practitioner1174295323

Verify Koushik Kumar Das in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2016013228
    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 Missouri 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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56% fewer Medicare Part D claims than the average gastroenterology physician in 2024

359 Medicare Part D claims for 211 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Koushik Das359
  2. Specialty average811

Most prescribed

  1. Gavilyte-G81 claims
  2. Pantoprazole Sodium58 claims
  3. Omeprazole55 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf28 claims
  5. Peg-3350 And Electrolytes22 claims
  6. Ciprofloxacin Hcl20 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): 79.3 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. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  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: $1,722.33

6 payments; by number, the most common kind was food and beverage; the largest payer was Olympus Medical Systems Corporation. 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. Koushik Das$1,722.33
  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. Washington UniversitySaint Louis, MO

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

Koushik Kumar Das among 414 gastroenterology physician records in Missouri

Koushik Kumar Das, MD is one of 414 gastroenterology physician records with a practice address in Missouri. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 65% of them.

  • NPI issued2009 · 65% of these records are older, 33% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2009 · median 2003 among the 303 with a school on file
  • Record last updated2025 · 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 207RG0100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Missouri

There are 414 gastroenterology physician records in Missouri.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Ghadah Al Ismail, MDSaint Louis, MO 631291326353855
  2. Jose Saenz, MDSaint Louis, MO 631291740576909
  3. Yazan Abdalla, M.D.Saint Louis, MO 631281033365358
  4. Aireen-Ronalda Agulto, MDSaint Louis, MO 631281447771191
  5. Zarir AhmedSaint Louis, MO 631281770937492
  6. Badr Alhumayyd, MBBSSaint Louis, MO 631281821659095
  7. Samer Alkaade, M DSaint Louis, MO 631281982648259
  8. Mohammed Eyad Alsabbagh, M.D.Saint Louis, MO 631281083917090

Common questions

What is Koushik Kumar Das, MD's NPI number?

Koushik Kumar Das, MD's National Provider Identifier (NPI) is 1023245859, issued on Jun 19, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Koushik Kumar Das, MD located?

The NPPES record lists a practice address at 5201 Mid America Plz, Saint Louis, MO, 63129. Phone: (314) 747-2066. Providers update this record themselves, so call before visiting.

How can I verify Koushik Kumar Das, MD's license?

NPPES lists Missouri license number 2016013228, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Koushik Kumar Das, MD prescribe under Medicare Part D?

In 2024, Koushik Kumar Das, MD had 359 Medicare Part D claims for 211 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Koushik Kumar Das, MD's MIPS final score?

The 2023 MIPS final score is 79.3 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.