NPPES file of Aug 9, 2026

Jonathan Mark Gordon, M.D.

Internal Medicine Physician · Ridgefield, CT

Jonathan Mark Gordon, M.D. is an internal medicine physician with a practice address in Ridgefield, Connecticut, and NPI 1124057005, issued on Jul 2, 2006. Check the license (Connecticut 017998, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1124057005
Name
Jonathan Mark Gordon
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
017998 CT
Self-reported in NPPES; status is on the state search
Practice location
21 South St, Ridgefield, CT 06877
Phone
(203) 438-6541
Enumerated
Jul 2, 2006
Record last updated
Aug 19, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicaid ID
1179985 CT
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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Also registered at 21 South St

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

  1. Jay D'Orso, MDInternal Medicine Physician1578571121
  2. Satoko Kanahara, MDInternal Medicine Physician1427343722
  3. Weiming Li, M.D.Internal Medicine Physician1912968090
  4. Kathleen McAuliffe, FNP- BCFamily Nurse Practitioner1083443881
  5. Siobhan Meyer, APRN, FNP-BCNurse Practitioner1740532134
  6. Debra MortonClinical Social Worker1811454911

Verify Jonathan Mark Gordon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 017998
    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 Connecticut 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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Jonathan Mark Gordon among 2,623 internal medicine physician records in Connecticut

Jonathan Mark Gordon, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% 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 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 52% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2016 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 internal medicine physician records list a practice address in Ridgefield

They are 15 of the 473 NPPES records with a practice address in Ridgefield, and 2,623 internal medicine physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mark Anderson, M.D.Ridgefield, CT 068771679640866
  2. Lauren Bumby, M.D.Ridgefield, CT 068771407909302
  3. Jay D'Orso, MDRidgefield, CT 068771578571121
  4. Frank Delli Carpini, M.D.Ridgefield, CT 068771316272545
  5. Serafima Glouzgal, MDRidgefield, CT 068771497785166
  6. Saragur Jyothi, MDRidgefield, CT 068771225065691
  7. Satoko Kanahara, MDRidgefield, CT 068771427343722
  8. Weiming Li, M.D.Ridgefield, CT 068771912968090

Common questions

What is Jonathan Mark Gordon, M.D.'s NPI number?

Jonathan Mark Gordon, M.D.'s National Provider Identifier (NPI) is 1124057005, issued on Jul 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Mark Gordon, M.D. located?

The NPPES record lists a practice address at 21 South St, Ridgefield, CT, 06877. Phone: (203) 438-6541. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Mark Gordon, M.D.'s license?

NPPES lists Connecticut license number 017998, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. 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.

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.