NPPES file of Aug 9, 2026

James A. Slater, MD

Internal Medicine Physician · New Canaan, CT

James A. Slater, MD is an internal medicine physician with a practice address in New Canaan, Connecticut, and NPI 1588713879, issued on Jan 9, 2007. Check the license (Connecticut 016709, 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
1588713879
Name
James A. Slater
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
016709 CT
Self-reported in NPPES; status is on the state search
Practice location
173 East Avenue, New Canaan, CT 06840
Phone
(203) 966-7030
Enumerated
Jan 9, 2007
Record last updated
May 1, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(203) 766-6253
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.
Download card Updates feed

Also registered at 173 East Avenue

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

  1. William Flynn, MDPediatrics Physician1679640460
  2. Eva Grunberg, MDPediatrics Physician1740357540
  3. Peter Hasapis, MDInternal Medicine Physician1720154354
  4. Alyssa Newman, MDPediatrics Physician1790852598
  5. Harrison Pierce, MDPediatrics Physician1801963756
  6. Peter Shutkin, MDInternal Medicine Physician1598830234

Verify James A. Slater in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 016709
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

James A. Slater among 2,623 internal medicine physician records in Connecticut

James A. Slater, MD 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 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 44% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2013 · 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).

13 internal medicine physician records list a practice address in New Canaan

They are 13 of the 276 NPPES records with a practice address in New Canaan, 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. Deena Ebright, M.D.New Canaan, CT 068401346202371
  2. Seymour Fein, M.D.New Canaan, CT 068401598886723
  3. Yesha Gandhi, M.D.New Canaan, CT 068401457887200
  4. Peter Hasapis, MDNew Canaan, CT 068401720154354
  5. Kirsten Hohmann, MDNew Canaan, CT 068401912017989
  6. Denise Lautenbach, MDNew Canaan, CT 068401174620694
  7. Alicia Masucci, MDNew Canaan, CT 068401992333777
  8. Rebecca ScherrNew Canaan, CT 068401841816360

Common questions

What is James A. Slater, MD's NPI number?

James A. Slater, MD's National Provider Identifier (NPI) is 1588713879, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James A. Slater, MD located?

The NPPES record lists a practice address at 173 East Avenue, New Canaan, CT, 06840. Phone: (203) 966-7030. Providers update this record themselves, so call before visiting.

How can I verify James A. Slater, MD's license?

NPPES lists Connecticut license number 016709, 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.