NPPES file of Aug 9, 2026

Karyn J. Horowitz, M.D.

Child & Adolescent Psychiatry Physician · East Providence, RI

Karyn J. Horowitz, M.D. is a child & adolescent psychiatry physician with a practice address in East Providence, Rhode Island, and NPI 1578502233, issued on Jun 6, 2006. Check the license (Rhode Island MD10926, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578502233
Name
Karyn J. Horowitz
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
MD10926 RI
Self-reported in NPPES; status is on the state search
Practice location
1011 Veterans Memorial Pkwy, East Providence, RI 02915
Phone
(401) 432-1424
Enumerated
Jun 6, 2006
Record last updated
Sep 9, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(401) 432-1500
Medicaid ID
KH47076 RI
Medicare enrollment
Enrolled (PECOS I20220507000149); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1011 Veterans Memorial Pkwy

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

  1. Steven Barreto, PHDClinical Psychologist1336180983
  2. Rowland Barrett, PHDClinical Psychologist1891733416
  3. Christina Bellanti, PHDClinical Psychologist1508813791
  4. Karyn Blane, PSYDClinical Psychologist1568409431
  5. John Boekamp, PHDClinical Psychologist1790722627
  6. Michael Borden, PHDClinical Psychologist1447297387

Verify Karyn J. Horowitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license MD10926
    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 Rhode Island license search

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96% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

20 Medicare Part D claims, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.

  1. Karyn Horowitz20
  2. Specialty average504

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.

Bills Medicare through one group practice

  1. Lifespan Physician Group IncProvidence, RI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Karyn J. Horowitz among 90 child & adolescent psychiatry physician records in Rhode Island

Karyn J. Horowitz, M.D. is one of 90 child & adolescent psychiatry physician records with a practice address in Rhode Island. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 63% newer
  • In a Medicare fileYes · 54% of these records are
  • In the CMS Doctors and Clinicians fileYes · 29% of these records are
  • Graduated1996 · median 2002 among the 26 with a school on file
  • Record last updated2013 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 child & adolescent psychiatry physician records list a practice address in East Providence

They are 10 of the 779 NPPES records with a practice address in East Providence, and 90 child & adolescent psychiatry physician records in Rhode Island.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Brady Case, M.D.Riverside, RI 029151538384656
  2. Geanina Costea, M.D.East Providence, RI 029151891740189
  3. Susane Dickson, M.D.Riverside, RI 029151194804054
  4. Jeffrey Hunt, M.D.East Providence, RI 029151952357998
  5. Margaret Klitzke, D.O.East Providence, RI 029151770539728
  6. Diane McLean, MDRiverside, RI 029151336114693
  7. Dale Radka, M.D.East Providence, RI 029151952356628
  8. Henry Sachs, M.D.East Providence, RI 029151952349821

Common questions

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

Karyn J. Horowitz, M.D.'s National Provider Identifier (NPI) is 1578502233, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karyn J. Horowitz, M.D. located?

The NPPES record lists a practice address at 1011 Veterans Memorial Pkwy, East Providence, RI, 02915. Phone: (401) 432-1424. Providers update this record themselves, so call before visiting.

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

NPPES lists Rhode Island license number MD10926, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Karyn J. Horowitz, M.D. prescribe under Medicare Part D?

In 2024, Karyn J. Horowitz, M.D. had 20 Medicare Part D claims; the average among child & adolescent psychiatry physician prescribers was 504. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.

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.