NPPES file of Aug 9, 2026

Mark J. Chelder, PH.D.

Clinical Neuropsychologist · Galloway, NJ

Mark J. Chelder, PH.D. is a clinical neuropsychologist with a practice address in Galloway, New Jersey, and NPI 1376692889, issued on Jan 10, 2007. Check the license (New Jersey SI 03735, as entered in NPPES) with the New Jersey board that licenses this profession; 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
1376692889
Name
Mark J. Chelder
Credential
PH.D.
Primary taxonomy
Clinical Neuropsychologist 103G00000X
License numbers
SI 03735 NJ
PS-005007-L PA
Self-reported in NPPES; status is on the state search
Practice location
28 S New York RD, Galloway, NJ 08205
Phone
(800) 783-7930
Enumerated
Jan 10, 2007
Record last updated
May 19, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(800) 783-7930
Medicare enrollment
Enrolled (PECOS I20110208000358); accepts Medicare assignment
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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8 nearest clinical neuropsychologist records → All 155 in New Jersey → Look up another NPI →

Also registered at 28 S New York RD

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

  1. Christine Gayda-Chelder, PHDPsychologist1104920271
  2. Ramchand Thadhani, M.D.Family Medicine Physician1619035342

Verify Mark J. Chelder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
    Search for license SI 03735    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
Find the New Jersey license search

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Mark J. Chelder among 155 clinical neuropsychologist records in New Jersey

Mark J. Chelder, PH.D. is one of 155 clinical neuropsychologist records with a practice address in New Jersey. 38% 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 27% of them.

  • NPI issued2007 · 27% of these records are older, 56% newer
  • In a Medicare fileNo · 38% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated1985 · median 2008 among the 79 with a school on file
  • Record last updated2014 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Neuropsychologist providers in New Jersey

There are 155 clinical neuropsychologist records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 155 in New Jersey → Every provider in Galloway → Clinical Neuropsychologist nationwide →

The 8 clinical neuropsychologist records with the nearest ZIP codes

  1. Curtis Waechtler, PH.D.Linwood, NJ 082211689764524
  2. Michael Colis, PH.D.Haddon Township, NJ 081081578640942
  3. William Culbertson, PSY.D.Haddon Township, NJ 081081750596821
  4. Miriam Matz, PSYDSwedesboro, NJ 080851154472132
  5. Danielle Digregorio, PSY.D.Stratford, NJ 080841467619585
  6. David Libon, PH.D.Stratford, NJ 080841124008511
  7. Laura Salciunas, MS, LPC, NCCStratford, NJ 080841801347067
  8. Danielle Ager, PSY.D.Mount Laurel, NJ 080541770851883

Common questions

What is Mark J. Chelder, PH.D.'s NPI number?

Mark J. Chelder, PH.D.'s National Provider Identifier (NPI) is 1376692889, issued on Jan 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark J. Chelder, PH.D. located?

The NPPES record lists a practice address at 28 S New York RD, Galloway, NJ, 08205. Phone: (800) 783-7930. Providers update this record themselves, so call before visiting.

How can I verify Mark J. Chelder, PH.D.'s license?

NPPES lists New Jersey license number SI 03735, as entered by the provider. Search the New Jersey 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.