Doctor profile · Federal record

Dr. Louis Castle, LCSW

Clinical Social Worker · Princeton, NJ

  • NPI 1720201304
  • Accepts Medicare
  • MIPS 68.9 / 100 · 2023
  • 29 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 Nassau St Ste 310
Princeton, NJ 085424509
(732) 491-7056
Mailing address
24 Amethyst Way
Franklin Park, NJ 088231652

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
1041C0700X — NUCC code
State license (1)
New Jersey #44SC05252000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1720201304. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
702
Distinct HCPCS
2
Medicare allowed
$41,068
HCPCS Description Services Patients Avg allowed
90832 Psychotherapy, 30 minutes 671 42 $55
90791 Psychiatric diagnostic evaluation 31 31 $128

In context: peer comparison

Among 5 peers in this city , average services per provider: 251. This provider delivers 2.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Louis Castle's medical specialty?
Dr. Louis Castle practices Clinical Social Worker in Princeton, NJ.
Where does Dr. Louis Castle practice?
Dr. Louis Castle practices at 20 Nassau St Ste 310, Princeton, NJ 085424509. Office phone: 7324917056.
What is Dr. Louis Castle's NPI?
Dr. Louis Castle's National Provider Identifier (NPI) is 1720201304, issued by NPPES.
Does Dr. Louis Castle accept Medicare assignment?
Yes. Dr. Louis Castle accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louis Castle commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90832); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.