Mark Lawrence Dayboch, PSY.D.
Clinical Psychologist · Smithtown, NY
Mark Lawrence Dayboch, PSY.D. is a clinical psychologist with a practice address in Smithtown, New York, and NPI 1023136231, issued on Mar 26, 2007. Check the license (New York 009516-1, 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 Lawrence Dayboch
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 009516-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 119 Fifty Acre RD S, Smithtown, NY 11787
- Phone
- (631) 979-9294
- Enumerated
- Mar 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 02012224 NY
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 6,558 in New York → Look up another NPI →
Verify Mark Lawrence Dayboch 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 009516-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Lawrence Dayboch among 6,558 clinical psychologist records in New York
Mark Lawrence Dayboch, PSY.D. is one of 6,558 clinical psychologist records with a practice address in New York. 7% 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 2007, is newer than 25% of them.
- NPI issued2007 · 25% of these records are older, 57% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 clinical psychologist records list a practice address in Smithtown
They are 23 of the 1,907 NPPES records with a practice address in Smithtown, 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 6,558 in New York → Every provider in Smithtown → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Ephraim Biblow, PH.D.Smithtown, NY 117871942246335
- Lisa Cane, PH.D.Smithtown, NY 117871669507216
- Ruth Derosa, PH.D.Smithtown, NY 117871538290531
- Bruce Friedin, PH.D.Smithtown, NY 117871811065451
- Kendra Haven, PH.D.Smithtown, NY 117871205939493
- Michael Herships, PH.D.Smithtown, NY 117871740378520
- Peter Kanaris, PHDSmithtown, NY 117871649254970
- Norman Kanter, PHDSmithtown, NY 117871609957091
Common questions
What is Mark Lawrence Dayboch, PSY.D.'s NPI number?
Mark Lawrence Dayboch, PSY.D.'s National Provider Identifier (NPI) is 1023136231, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lawrence Dayboch, PSY.D. located?
The NPPES record lists a practice address at 119 Fifty Acre RD S, Smithtown, NY, 11787. Phone: (631) 979-9294. Providers update this record themselves, so call before visiting.
How can I verify Mark Lawrence Dayboch, PSY.D.'s license?
NPPES lists New York license number 009516-1, 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.