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Edit this profileBased in Seattle, WA, Riley A. O'Hara, MD is listed in the NPI registry under pathology. According to Medicare claims data, Riley cared for 101 Medicare patients across 119 services. The services billed most often include cell examination of specimen, selective cellular enhancement technique, pathology examination of tissue using a microscope, intermediate complexity, and evaluation of fine needle aspirate with interpretation and report. NPI 1821593542 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
325 9TH AVE
Seattle, WA 98104
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
Cytology & Screening
Autopsy & Forensic
Blood Tests
Cytology
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
119 services · 101 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Cell examination of specimen, selective cellular enhancement technique | Lab test | 88112 |
61 | As often as other peers in Pathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
43 | Less often than most peers in Pathology |
| Evaluation of fine needle aspirate with interpretation and report | Lab test | 88173 |
15 | Less often than most peers in Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. O'Hara is a pathologist in Seattle, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Dr. O'Hara is listed at 325 9Th Ave, Seattle, WA 98104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (206) 520-5000. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. O'Hara's National Provider Identifier is 1821593542. 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. O'Hara attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
Dr. O'Hara has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. O'Hara 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. O'Hara. If this is you, claiming it is free.
Guide.md
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