Doctor profile · Federal record

Dr. Anthony Diaz

Internal Medicine Physician (CMS: Hospitalist) · Student in an Organized Health Care Education/Training Program · Perth Amboy, NJ

  • NPI 1235645821
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
530 New Brunswick Ave
Perth Amboy, NJ 088613654
(732) 324-5080
fax (732) 324-4669

Credentials & registration

NPPES · NUCC
NPI registered
December 2017 — 9 yrs on file
Profile last updated
June 7, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New Jersey #25MA11029900

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235645821. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
852
Distinct HCPCS
7
Medicare allowed
$151,035
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 671 623 $181
99291 Critical care, first 30-74 minutes 69 61 $222
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 50 39 $124
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 21 21 $136
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 19 19 $83
99236 Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes 11 11 $218
99238 Hospital discharge day management, 30 minutes or less 11 11 $85

In context: peer comparison

Among 10 peers in this city , average services per provider: 111. This provider delivers 7.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Anthony Diaz's medical specialty?
Dr. Anthony Diaz practices Internal Medicine Physician in Perth Amboy, NJ.
Where does Dr. Anthony Diaz practice?
Dr. Anthony Diaz practices at 530 New Brunswick Ave, Perth Amboy, NJ 088613654. Office phone: 7323245080.
What is Dr. Anthony Diaz's NPI?
Dr. Anthony Diaz's National Provider Identifier (NPI) is 1235645821, issued by NPPES.
Does Dr. Anthony Diaz accept Medicare assignment?
Yes. Dr. Anthony Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Anthony Diaz commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.