Registry data as of Aug 27, 2026

Steven Iallonardo, MS

Intellectual & Developmental Disabilities Psychologist · New York, NY

Steven Iallonardo, MS is an intellectual & developmental disabilities psychologist with a practice address in New York, New York, and NPI 1457593543, issued on Apr 3, 2009. Check the license with the New York board that licenses this profession; 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
1457593543
Name
Steven Iallonardo
Credential
MS
Primary taxonomy
Intellectual & Developmental Disabilities Psychologist 103TM1800X
Practice location
460 W 34TH St, New York, NY 10001
Phone
(212) 273-6527
Enumerated
Apr 3, 2009
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 460 W 34TH St

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

  1. Ahmed Abdel RehimSpecialist1427073592
  2. Anne AbramsSocial Worker1295173284
  3. Maria AbreuStudent in an Organized Health Care Education/Training Program1508101304
  4. Ramon AcevedoSpecialist1144245226
  5. Ellissa AckermanSpecialist1972535466
  6. Mark AgostoSpecialist1730387127

Verify Steven Iallonardo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this professionCheck 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
Find the New York 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.

Intellectual & Developmental Disabilities Psychologist providers in New York

There are 71 intellectual & developmental disabilities psychologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other intellectual & developmental disabilities psychologist records in New York

  1. Yakov Asherov, M.A.Jamaica, NY1821381195
  2. Sangweon Aum, PH.D.Bronx, NY1821478728
  3. Patricia BarkerLocust Valley, NY1417438045
  4. Sarit BayazBrooklyn, NY1154747517
  5. Jon Brennan, R-LCSWCenter Moriches, NY1659863868
  6. Rosemaria Cavaliere, MANew Hyde Park, NY1295334092
  7. Tori CedarNew York, NY1255087656
  8. Suhong Chen, PH.D.New York, NY1023675097
  9. Jenifer Clark, PHDNew York, NY1023693736
  10. Greta Cole, CERTIFIED TEACHERBrooklyn, NY1295161149

Common questions

What is Steven Iallonardo, MS's NPI number?

Steven Iallonardo, MS's National Provider Identifier (NPI) is 1457593543, issued on Apr 3, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Steven Iallonardo, MS located?

The NPPES record lists a practice address at 460 W 34TH St, New York, NY, 10001. Phone: (212) 273-6527. Providers update this record themselves, so call before visiting.

How can I verify Steven Iallonardo, MS's license?

Search the New York board that licenses this profession; the NPPES record confirms identity only.

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.