Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jonathan T Simon, M.D.

Internal Medicine Physician in Ansonia, CT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1073565511

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Registry record

Entity type Individual (Type 1)

Name Mr. Jonathan T Simon

Credential M.D.

Sex Male

Practice address 22 Westfield Ave, Ansonia, CT, 06401

Phone (203) 736-9919

Fax (203) 735-2055

Enumeration date May 16, 2006

Last updated in NPPES Sep 26, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 234884 (NY) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 234884 (NY) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 46849 (CT) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 46849 (CT) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
008002867	Medicaid	CT	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1073565511 active?

Yes, as of the latest NPPES snapshot, NPI 1073565511 is active (record last updated 2018-09-26).

How do I verify Jonathan Simon's NPI record?

Cross-check NPI 1073565511 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Nira Silverman Dermatology Physician · Ansonia, CT NPI 1952309858 Muhammad Qadir Internal Medicine Physician · Ansonia, CT NPI 1356340319 Jeffrey Dreznick Gastroenterology Physician · Ansonia, CT NPI 1902895436 Mary Ellie Stankus Nurse Practitioner · Ansonia, CT NPI 1649222019 Gastroenterology Specialists PC Nurse Practitioner · Ansonia, CT NPI 1144259029 Roy Kalman Gynecology Physician · Ansonia, CT NPI 1053335299 Bruce Brennan Internal Medicine Physician · Ansonia, CT NPI 1013927797 Deborah Levenson Gastroenterology Physician · Ansonia, CT NPI 1952406688

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-26.