Registry data as of Aug 27, 2026

Stephen Rubenstein, M.D.

Internal Medicine Physician · Watertown, CT

Stephen Rubenstein, M.D. is an internal medicine physician with a practice address in Watertown, Connecticut, and NPI 1407960990, issued on Aug 19, 2006. Check the license (Connecticut 15816, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1407960990
Name
Stephen Rubenstein
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
15816 CT
Self-reported in NPPES; status is on the state search
Practice location
70 Heminway Park RD, Watertown, CT 06795
Phone
(860) 945-3350
Enumerated
Aug 19, 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.
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Also registered at 70 Heminway Park RD

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

  1. Sallie Carrington, DOInternal Medicine Physician1639275936
  2. Elisha Danzig, DOStudent in an Organized Health Care Education/Training Program1396360509
  3. Deanna Michaud, PAPhysician Assistant1407826522
  4. Shaina St Pierre, FNP-CFamily Nurse Practitioner1619791084

Verify Stephen Rubenstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 15816
    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.

99% fewer Medicare Part D claims than the average internal medicine physician in 2024

16 Medicare Part D claims, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Stephen Rubenstein16
  2. Specialty average2,785

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

5 internal medicine physician records list a Watertown practice address

They are 5 of the 222 NPPES records with a Watertown practice address, and 2,830 internal medicine physician records in Connecticut.

Other internal medicine physician records in Connecticut

  1. Christina AbavanaBridgeport, CT1508206574
  2. Hoda Abdel Salam, M.D.New Britain, CT1144509316
  3. Gada Abdelhafiz, MDNew London, CT1467649558
  4. Mahmoud Abdelrahman, MDBridgeport, CT1467072868
  5. Simon Abi-SalehBridgeport, CT1891315529
  6. Gerard Abidor, D.O.Bridgeport, CT1518014539
  7. Richard Abraham, M.D.Canton, CT1023044252
  8. Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
  9. Nila Aburto, MDStamford, CT1396325718
  10. Angelo Accomando, M.D.East Haven, CT1063454247

Common questions

What is Stephen Rubenstein, M.D.'s NPI number?

Stephen Rubenstein, M.D.'s National Provider Identifier (NPI) is 1407960990, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Rubenstein, M.D. located?

The NPPES record lists a practice address at 70 Heminway Park RD, Watertown, CT, 06795. Phone: (860) 945-3350. Providers update this record themselves, so call before visiting.

How can I verify Stephen Rubenstein, M.D.'s license?

NPPES lists Connecticut license number 15816, 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.

How much does Stephen Rubenstein, M.D. prescribe under Medicare Part D?

In 2024, Stephen Rubenstein, M.D. had 16 Medicare Part D claims; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.