Doctor profile · Federal record

Dr. Mark Chelder, PH.D.

Clinical Neuropsychologist (CMS: Clinical Psychologist) · Clinical Neuropsychologist · Galloway, NJ

  • NPI 1376692889
  • Accepts Medicare
  • 41 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
28 S New York RD, Suite B-5
Galloway, NJ 082059695
(800) 783-7930
fax (800) 783-7930
Mailing address
325 E Jimmie Leeds RD, #119
Galloway, NJ 082054126

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
May 19, 2014
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
103G00000X — NUCC code
State licenses (2)
New Jersey #SI 03735 · Pennsylvania #PS-005007-L

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376692889. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
395
Distinct HCPCS
6
Medicare allowed
$26,890
HCPCS Description Services Patients Avg allowed
96137 Administration of psychological or neuropsychological test, each additional 30 minutes 210 22 $42
96133 Evaluation of neuropsychological test, each additional hour 94 22 $104
96116 Exam of neurobehavioral status, first hour 31 26 $98
96132 Evaluation of neuropsychological test, first hour 22 22 $136
96136 Administration of psychological or neuropsychological test, first 30 minutes 22 22 $46
96121 Exam of neurobehavioral status, each additional hour 16 13 $79

In context: peer comparison

Among 1 peers in Galloway Clinical Neuropsychologist, average services per provider: 65. This provider delivers 6.1× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Chelder's medical specialty?
Dr. Mark Chelder practices Clinical Neuropsychologist in Galloway, NJ.
Where does Dr. Mark Chelder practice?
Dr. Mark Chelder practices at 28 S New York RD, Galloway, NJ 082059695. Office phone: 8007837930.
What is Dr. Mark Chelder's NPI?
Dr. Mark Chelder's National Provider Identifier (NPI) is 1376692889, issued by NPPES.
Does Dr. Mark Chelder accept Medicare assignment?
Yes. Dr. Mark Chelder accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Chelder commonly perform?
Top Medicare-reported procedures in 2023: Administration of psychological or neuropsychological test (HCPCS 96137); Evaluation of neuropsychological test, each additional hour (HCPCS 96133); Exam of neurobehavioral status, first hour (HCPCS 96116). Source: CMS Medicare Physician & Other Practitioners file.