Doctor profile · Federal record

Dr. Joshua Vanderschaaf, PSYD

Psychologist (CMS: Clinical Psychologist) · San Mateo, CA

  • NPI 1144300435
  • Accepts Medicare
  • MIPS 74.2 / 100 · 2023
  • 24 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
222 W 39Th Ave
San Mateo, CA 944034364
(650) 573-2222

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
April 11, 2013
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
103T00000X — NUCC code
State license (1)
California #PSY19237

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144300435. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
22
Distinct HCPCS
1
Medicare allowed
$2,003
HCPCS Description Services Patients Avg allowed
96116 Exam of neurobehavioral status, first hour 22 20 $91

In context: peer comparison

Among 1 peers in San Mateo Psychologist, average services per provider: 22. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Joshua Vanderschaaf's medical specialty?
Dr. Joshua Vanderschaaf practices Psychologist in San Mateo, CA.
Where does Dr. Joshua Vanderschaaf practice?
Dr. Joshua Vanderschaaf practices at 222 W 39Th Ave, San Mateo, CA 944034364. Office phone: 6505732222.
What is Dr. Joshua Vanderschaaf's NPI?
Dr. Joshua Vanderschaaf's National Provider Identifier (NPI) is 1144300435, issued by NPPES.
Does Dr. Joshua Vanderschaaf accept Medicare assignment?
Yes. Dr. Joshua Vanderschaaf accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joshua Vanderschaaf commonly perform?
Top Medicare-reported procedures in 2023: Exam of neurobehavioral status, first hour (HCPCS 96116). Source: CMS Medicare Physician & Other Practitioners file.