NPPES file of Aug 9, 2026

Steven M. Horowitz, M.D.

Cardiovascular Disease Physician · Glastonbury, CT

Steven M. Horowitz, M.D. is a cardiovascular disease physician with a practice address in Glastonbury, Connecticut, and NPI 1558358598, issued on Oct 4, 2005. Check the license (Connecticut 023326, 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
1558358598
Name
Steven M. Horowitz
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
023326 CT
Self-reported in NPPES; status is on the state search
Practice location
703 Hebron Ave, Glastonbury, CT 06033
Phone
(860) 659-8830
Enumerated
Oct 4, 2005
Record last updated
Jun 5, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(860) 633-8529
Medicaid ID
001233261 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 703 Hebron Ave

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

  1. Samantha Jones, LPC-AProfessional Counselor1942010970
  2. Anthony Lasala, M.D.Cardiovascular Disease Physician1114915766
  3. John Lefevre, LPCAMental Health Counselor1073399838
  4. Jennifer Lombardi, APRNPediatric Nurse Practitioner1144297680
  5. Lawrence Pareles, M.D.Cardiovascular Disease Physician1710974738

Verify Steven M. Horowitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 023326
    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

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Steven M. Horowitz among 503 cardiovascular disease physician records in Connecticut

Steven M. Horowitz, M.D. is one of 503 cardiovascular disease physician records with a practice address in Connecticut. 83% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 77% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2014 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Connecticut

There are 503 cardiovascular disease physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Thomas Freund, MDGlastonbury, CT 060331093700221
  2. Michael Fuery, MDGlastonbury, CT 060331427614999
  3. Anthony Lasala, M.D.Glastonbury, CT 060331114915766
  4. Shishir Mathur, M.D.Glastonbury, CT 060331003016957
  5. Lawrence Pareles, M.D.Glastonbury, CT 060331710974738
  6. Joseph Sappington, MDGlastonbury, CT 060331285629410
  7. Mariam Azeem, M.D.Farmington, CT 060321053602672
  8. Peter Barwick, M.D.Granby, CT 060351811021835

Common questions

What is Steven M. Horowitz, M.D.'s NPI number?

Steven M. Horowitz, M.D.'s National Provider Identifier (NPI) is 1558358598, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Steven M. Horowitz, M.D. located?

The NPPES record lists a practice address at 703 Hebron Ave, Glastonbury, CT, 06033. Phone: (860) 659-8830. Providers update this record themselves, so call before visiting.

How can I verify Steven M. Horowitz, M.D.'s license?

NPPES lists Connecticut license number 023326, 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.