Doctor profile · Federal record

Dr. Eric Loo, M.D.

Anatomic Pathology & Clinical Pathology Physician · Clinical Pathology Physician · Hematology (Pathology) Physician · Hematology (Pathology) Physician · Molecular Genetic Pathology (Pathology) Physician · Anatomic Pathology & Clinical Pathology Physician · San Juan Capistrano, CA

  • NPI 1972740744
  • MIPS 76.0 / 100 · 2023
  • 17 yrs on file
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
33608 Ortega Hwy Bldg A
San Juan Capistrano, CA 926752042
(949) 728-4155
Additional location
1 Medical Center Dr, Dhmc - Pathology Department
Lebanon, NH 037561000
(603) 650-8693

Credentials & registration

NPPES · NUCC
NPI registered
January 2009 — 17 yrs on file
Profile last updated
September 20, 2024
Specialty taxonomy
207ZP0102X — NUCC code
State licenses (3)
California #A105865 · New Hampshire #17115 · New Mexico #RS2014-0413

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972740744. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,113
Distinct HCPCS
10
Medicare allowed
$35,446
HCPCS Description Services Patients Avg allowed
88341 Special stained specimen slides to examine tissue, each additional procedure 237 51 $27
86334 Immunologic analysis technique on serum (immunofixation) 173 170 $18
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers 105 96 $62
88305 Pathology examination of tissue using a microscope, intermediate complexity 95 82 $36
88313 Special stained specimen slides to examine tissue including interpretation and report 91 62 $12
88311 Preparation of tissue for examination by removing any calcium present 67 62 $12
85097 Bone marrow, smear interpretation 66 61 $48
88342 Special stained specimen slides to examine tissue, initial procedure 65 61 $34
85060 Blood smear interpretation by physician with written report 51 50 $24
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers 39 39 $82

In context: peer comparison

Among 1 peers in this city , average services per provider: 74. This provider delivers 15× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Eric Loo's medical specialty?
Dr. Eric Loo practices Anatomic Pathology & Clinical Pathology Physician in San Juan Capistrano, CA.
Where does Dr. Eric Loo practice?
Dr. Eric Loo practices at 33608 Ortega Hwy Bldg A, San Juan Capistrano, CA 926752042. Office phone: 9497284155.
What is Dr. Eric Loo's NPI?
Dr. Eric Loo's National Provider Identifier (NPI) is 1972740744, issued by NPPES.
What procedures does Dr. Eric Loo commonly perform?
Top Medicare-reported procedures in 2023: Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Immunologic analysis technique on serum (immunofixation) (HCPCS 86334); Flow cytometry technique for dna or cell analysis, 9 to 15 markers (HCPCS 88188). Source: CMS Medicare Physician & Other Practitioners file.