Doctor profile · Federal record

Dr. Leonidas Arvanitis, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Neuropathology Physician · Anatomic Pathology & Clinical Pathology Physician · Duarte, CA

  • NPI 1669628764
  • Accepts Medicare
  • MIPS 91.9 / 100 · 2023
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1500 Duarte RD
Duarte, CA 910103012
(626) 256-4673
Additional location
1653 W Congress Pkwy
Chicago, IL 606123833
(312) 942-5260
Mailing address
Po Box 512185
Los Angeles, CA 900510185

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
March 17, 2018
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State licenses (2)
California #A152120 · Illinois #125053987

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669628764. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,111
Distinct HCPCS
10
Medicare allowed
$203,545
HCPCS Description Services Patients Avg allowed
88341 Special stained specimen slides to examine tissue, each additional procedure 1,355 312 $30
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,344 476 $39
88342 Special stained specimen slides to examine tissue, initial procedure 769 458 $37
88313 Special stained specimen slides to examine tissue including interpretation and report 481 248 $13
88307 Pathology examination of tissue using a microscope, moderately high complexity 314 143 $86
88312 Special stained specimen slides to identify organisms including interpretation and report 218 119 $28
88321 Surgical pathology consultation and report on referred slides prepared elsewhere 196 191 $88
88360 Microscopic genetic analysis of tumor, manual 178 92 $44
88309 Pathology examination of tissue using a microscope, high complexity 83 63 $152
88331 Pathology examination of specimen during surgery, first tissue block 60 42 $65

In context: peer comparison

Among 8 peers in Duarte Anatomic Pathology & Clinical Pathology Physician, average services per provider: 220. This provider delivers 23× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Leonidas Arvanitis's medical specialty?
Dr. Leonidas Arvanitis practices Anatomic Pathology & Clinical Pathology Physician in Duarte, CA.
Where does Dr. Leonidas Arvanitis practice?
Dr. Leonidas Arvanitis practices at 1500 Duarte RD, Duarte, CA 910103012. Office phone: 6262564673.
What is Dr. Leonidas Arvanitis's NPI?
Dr. Leonidas Arvanitis's National Provider Identifier (NPI) is 1669628764, issued by NPPES.
Does Dr. Leonidas Arvanitis accept Medicare assignment?
Yes. Dr. Leonidas Arvanitis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leonidas Arvanitis commonly perform?
Top Medicare-reported procedures in 2023: Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.