NPPES file of Aug 9, 2026

David Aaron Simon, DO

Pediatric Gastroenterology Physician · Saint Louis, MO

David Aaron Simon, DO is a pediatric gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1306290374, issued on Apr 15, 2016. Check the license (Missouri 2018020636, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306290374
Name
David Aaron Simon
Credential
DO
Primary taxonomy
Pediatric Gastroenterology Physician 2080P0206X
License number
2018020636 MO
Self-reported in NPPES; status is on the state search
Practice location
1465 S Grand Blvd, Saint Louis, MO 63104
Phone
(314) 577-5647
Enumerated
Apr 15, 2016
Record last updated
Jul 3, 2024
Fax
(314) 268-2775
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest pediatric gastroenterology physician records → All 75 in Missouri → Look up another NPI →

Also registered at 1465 S Grand Blvd

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

  1. Nabil Abboud, MDAnesthesiology Physician1386660504
  2. Elaf AbdelmagidPediatrics Physician1831077627
  3. Michel Adonis, M.D.Pediatrics Physician1497190854
  4. Attila Ahmad, MDPediatric Cardiology Physician1245842699
  5. Emily Ahmad, CPNP-PCPediatric Nurse Practitioner1871875104
  6. Muteen Ahmed, M.B.B.S.Student in an Organized Health Care Education/Training Program1437950466

Verify David Aaron Simon 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 2018020636    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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David Aaron Simon among 75 pediatric gastroenterology physician records in Missouri

David Aaron Simon, DO is one of 75 pediatric gastroenterology physician records with a practice address in Missouri. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 80% of them.

  • NPI issued2016 · 80% of these records are older, 15% newer
  • In a Medicare fileNo · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 37% of these records are
  • Record last updated2024 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Gastroenterology Physician providers in Missouri

There are 75 pediatric gastroenterology physician records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 75 in Missouri → Every provider in Saint Louis → Pediatric Gastroenterology Physician nationwide →

The 8 pediatric gastroenterology physician records with the nearest ZIP codes

  1. Thomas Foy, MDSaint Louis, MO 631041427069525
  2. Ajay Jain, M.D.Saint Louis, MO 631041518194570
  3. Nisha Mangalat, M.D.Saint Louis, MO 631041992970792
  4. Fernando Medina Carbonell, M.D.Saint Louis, MO 631041467747659
  5. Helen Pappa, MDSt Louis, MO 631041134138993
  6. Dhiren Patel, M.D.St Louis, MO 631041265747596
  7. Aniruddh Setya, MDSaint Louis, MO 631041588914857
  8. Jeffrey Teckman, MDSaint Louis, MO 631041811907470

Common questions

What is David Aaron Simon, DO's NPI number?

David Aaron Simon, DO's National Provider Identifier (NPI) is 1306290374, issued on Apr 15, 2016. An NPI identifies a provider in billing; it is not a license.

Where is David Aaron Simon, DO located?

The NPPES record lists a practice address at 1465 S Grand Blvd, Saint Louis, MO, 63104. Phone: (314) 577-5647. Providers update this record themselves, so call before visiting.

How can I verify David Aaron Simon, DO's license?

NPPES lists Missouri license number 2018020636, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.