Mark J. Hershman, PSY.D.
Clinical Psychologist · Katonah, NY
Mark J. Hershman, PSY.D. is a clinical psychologist with a practice address in Katonah, New York, and NPI 1205982477, issued on Jan 28, 2007. Check the license (New York 8937, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark J. Hershman
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 8937 NY
Self-reported in NPPES; status is on the state search - Practice location
- 51 Bedford RD, Katonah, NY 10536
- Phone
- (914) 232-1730
- Enumerated
- Jan 28, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 01213038 NY
- Medicare enrollment
- Enrolled (PECOS I20101116000437); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 51 Bedford RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laura Baldwin Okeefe, LMSWClinical Social Worker1457500902
- Cynthia McLaughlin, LADC, LMHC, CASACMental Health Counselor1891021325
Verify Mark J. Hershman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 8937Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17 clinical psychologist records list a practice address in Katonah
They are 17 of the 274 NPPES records with a practice address in Katonah, and 6,558 clinical psychologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17 in Katonah → All 6,558 in New York → Every provider in Katonah →
Other clinical psychologist records in New York
- Kristen Abbott, PH.D.Bronx, NY1780849851
- Wendy Abbott-Egnor, PHDLatham, NY1467087734
- Rebecca Abbott-Sinclair, PHDScarsdale, NY1235669698
- Laila Abdelsalam, PH.D.New York, NY1801415708
- Danielle Abel, PHDGlen Oaks, NY1396608857
- Valerie Abel, PSY.D.Brooklyn, NY1053327627
- Edward Abelson, PH.D.Ithaca, NY1932254984
- Delrita Abercrombie, PH.D.Brooklyn, NY1134244411
- Ancy Abraham, PH.D.Fayetteville, NY1790973659
- Beverly Abraham, PHDCornwall On Hudson, NY1932246238
Common questions
What is Mark J. Hershman, PSY.D.'s NPI number?
Mark J. Hershman, PSY.D.'s National Provider Identifier (NPI) is 1205982477, issued on Jan 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Hershman, PSY.D. located?
The NPPES record lists a practice address at 51 Bedford RD, Katonah, NY, 10536. Phone: (914) 232-1730. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Hershman, PSY.D.'s license?
NPPES lists New York license number 8937, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity 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. 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.