Doctor profile · Federal record

Dr. Marc Loriaux, MD

Hematology (Pathology) Physician (CMS: Pathology) · Portland, OR

  • NPI 1215943824
  • Accepts Medicare
  • MIPS 90.5 / 100 · 2023
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3181 Sw Sam Jackson Park RD
Portland, OR 972393011
(503) 494-8276
Mailing address
3158 Sw Fairmount Blvd
Portland, OR 972391467

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207ZH0000X — NUCC code
State license (1)
Oregon #MD22768
Medicaid
OR #100402

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215943824. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
699
Distinct HCPCS
10
Medicare allowed
$27,797
HCPCS Description Services Patients Avg allowed
88341 Special stained specimen slides to examine tissue, each additional procedure 178 41 $29
88305 Pathology examination of tissue using a microscope, intermediate complexity 107 51 $38
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers 91 78 $85
88342 Special stained specimen slides to examine tissue, initial procedure 55 49 $35
88360 Microscopic genetic analysis of tumor, manual 55 32 $42
85097 Bone marrow, smear interpretation 48 46 $49
88311 Preparation of tissue for examination by removing any calcium present 45 44 $13
88313 Special stained specimen slides to examine tissue including interpretation and report 30 16 $12
88365 Genetic sequencing localization, initial procedure 25 22 $44
88108 Cell examination of specimen, concentration technique 20 18 $23

In context: peer comparison

Among 2 peers in Portland Hematology (Pathology) Physician, average services per provider: 45. This provider delivers 16× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Marc Loriaux's medical specialty?
Dr. Marc Loriaux practices Hematology (Pathology) Physician in Portland, OR.
Where does Dr. Marc Loriaux practice?
Dr. Marc Loriaux practices at 3181 Sw Sam Jackson Park RD, Portland, OR 972393011. Office phone: 5034948276.
What is Dr. Marc Loriaux's NPI?
Dr. Marc Loriaux's National Provider Identifier (NPI) is 1215943824, issued by NPPES.
Does Dr. Marc Loriaux accept Medicare assignment?
Yes. Dr. Marc Loriaux accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marc Loriaux 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); Flow cytometry technique for dna or cell analysis, 16 or more markers (HCPCS 88189). Source: CMS Medicare Physician & Other Practitioners file.