Physician Profile
Based in Portland, OR, Marc M. Loriaux, MD is listed in the NPI registry under hematopathology. Marc graduated from Oregon Health Sciences University School of Medicine in 1997. According to Medicare claims data, Marc cared for 572 Medicare patients across 980 services. The services billed most often include special stained specimen slides to examine tissue, each additional procedure, pathology examination of tissue using a microscope, intermediate complexity, and flow cytometry technique for dna or cell analysis, 16 or more markers.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
Within Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Autoimmune & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
Cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Autopsy & Forensic
Blood Tests
Cytology
Cytology & Screening
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
980 services · 572 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
295 | As often as other peers in Hematopathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
157 | As often as other peers in Hematopathology |
| Flow cytometry technique for dna or cell analysis, 16 or more markers | Lab test | 88189 |
118 | More often than most peers in Hematopathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
82 | As often as other peers in Hematopathology |
| Preparation of tissue for examination by removing any calcium present | Lab test | 88311 |
73 | As often as other peers in Hematopathology |
| Bone marrow, smear interpretation | Lab test | 85097 |
72 | As often as other peers in Hematopathology |
| Microscopic genetic analysis of tumor, manual | Lab test | 88360 |
60 | As often as other peers in Hematopathology |
| Genetic sequencing localization, each additional procedure | Lab test | 88364 |
39 | More often than most peers in Hematopathology |
| Genetic sequencing localization, initial procedure | Lab test | 88365 |
38 | More often than most peers in Hematopathology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
31 | Less often than most peers in Hematopathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Loriaux is a hematopathology in Portland, OR. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Loriaux is listed at 3181 Sw Sam Jackson Park Rd, Portland, OR 97239. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (503) 494-8276. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Loriaux's National Provider Identifier is 1215943824. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Loriaux attended Oregon Health Sciences University School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
Dr. Loriaux has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Loriaux the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Loriaux. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.