Provider Profile
Kathryn Riordan, DPT is a physical therapist based in Ferndale, WA. Medicare claims data shows Kathryn provided 1,546 services to 337 patients. The services billed most often include therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes, therapy procedure using functional activities, and therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes. The provider's National Provider Identifier (NPI) is 1659057537.
Factual summary compiled by Guide.md from public records; not written by this provider.
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.
1887 MAIN ST #105
Ferndale, WA 98248
Within Physical Therapy generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Back & Spine
Balance & head
Circulation
Foot & ankle
Foot & Ankle
Hand & Wrist
Hip & Pelvis
Joint & muscle
Joints
Knee & Leg
Neck & Head
Nerve & Spine
Nerve issues
Neurological
Pelvic Health
Shoulder
Spine & neck
Most searched procedures
Aquatic Therapy
Assessments
Back & Spine
Balance & neurological
Equipment & devices
Evaluation
Exercise Therapy
Foot & Ankle
General Therapy
Hands-on therapies
Hands-on Therapy
Mobility & Balance
Pain Relief Devices
Pelvic Health
Post-op care
Prevention & posture
Specialized programs
Specialized PT
Sports Performance
Support & stabilization
1,546 services · 337 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes | Treatment | 97112 |
561 | More often than most peers in Physical Therapist |
| Therapy procedure using functional activities | Treatment | 97530 |
484 | As often as other peers in Physical Therapist |
| Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes | Treatment | 97110 |
246 | Less often than most peers in Physical Therapist |
| Therapy procedure using manual technique, each 15 minutes | Treatment | 97140 |
202 | As often as other peers in Physical Therapist |
| Evaluation for physical therapy, typically 20 minutes | Treatment | 97161 |
53 | More often than most peers in Physical Therapist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Kathryn Riordan is a physical therapist in Ferndale, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Kathryn Riordan is listed at 1887 Main St #105, Ferndale, WA 98248. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (360) 384-5111. Contact the office directly to confirm availability and scheduling.
NPI registry
Kathryn Riordan's National Provider Identifier is 1659057537. 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
Kathryn Riordan has 3+ years experience. Registered with an NPI since 2023. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Kathryn Riordan provides treatments such as therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes and therapy procedure using functional activities. 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 Kathryn Riordan. If this is you, claiming it is free.
Guide.md
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