Registry data as of Aug 27, 2026

Clifford Berken, M.D.

Gastroenterology Physician · Greenwich, CT

Clifford Berken, M.D. is a gastroenterology physician with a practice address in Greenwich, Connecticut, and NPI 1215951173, issued on Jul 26, 2006. Check the license (Connecticut B38894, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1215951173
Name
Clifford Berken
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
B38894 CT
Self-reported in NPPES; status is on the state search
Practice location
500 W Putnam Ave, Greenwich, CT 06830
Phone
(203) 863-2900
Enumerated
Jul 26, 2006
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 500 W Putnam Ave

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

  1. Katie Atkinson, C-FNPFamily Nurse Practitioner1306079819
  2. Jennifer Barro, MDGastroenterology Physician1194841379
  3. Nelson Bonheim, MDGastroenterology Physician1366514549
  4. Jessica Dennison, RNGeneral Practice Registered Nurse1023778537
  5. Caroline Figgie, MDPediatric Endocrinology Physician1902366420
  6. Nancy Guberti, NUTRITIONISTNutritionist1265624241

Verify Clifford Berken in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license B38894
    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.

Gastroenterology Physician providers in Connecticut

There are 280 gastroenterology physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other gastroenterology physician records in Connecticut

  1. Abera Abay, M.D.Norwich, CT1861489585
  2. Clara Abraham, MDNew Haven, CT1629139456
  3. Charles Adelmann, M.D.Norwalk, CT1861436511
  4. Anant Agarwalla, M.D.Wallingford, CT1326458589
  5. Badr Al Bawardy, MDNew Haven, CT1104111509
  6. Jamil Alexis, MDStamford, CT1164927968
  7. Rabab Oun Ali Anwar Ali, MBBSNew Haven, CT1124580949
  8. Pietro Andres, M.D.Stratford, CT1588607386
  9. Catiele Antunes, M.D.New Haven, CT1508205204
  10. Harry Aslanian, MDNew Haven, CT1295718401

Common questions

What is Clifford Berken, M.D.'s NPI number?

Clifford Berken, M.D.'s National Provider Identifier (NPI) is 1215951173, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Clifford Berken, M.D. located?

The NPPES record lists a practice address at 500 W Putnam Ave, Greenwich, CT, 06830. Phone: (203) 863-2900. Providers update this record themselves, so call before visiting.

How can I verify Clifford Berken, M.D.'s license?

NPPES lists Connecticut license number B38894, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.