Mark Stose, PA
NPI 1871840157 · Medical Physician Assistant · Seattle, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Stose, PA is a Medical Physician Assistant provider in Seattle, WA (NPI 1871840157).
Provider details
- NPI number
- 1871840157
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
85 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 56 | $99 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 29 | $144 |
Typical Medicare-allowed amounts for these services range $99–$144 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Naproxen | 22 | 22 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 21 | 21 |
| Cyclobenzaprine Hcl | 18 | 18 |
| Oxycodone Hcl | 16 | 15 |
| Prednisone | 14 | 14 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 11 | 11 |
| Cephalexin | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-08-06
- Last updated
- 2012-08-06
Frequently asked questions
- What is Mark Stose's NPI number?
- Mark Stose's National Provider Identifier (NPI) is 1871840157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stose's specialty?
- Mark Stose is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Stose located?
- Mark Stose's practice location on file with NPPES is 510 Boren Ave N, Seattle, WA 98109-5501.
- What is Mark Stose's phone number?
- The practice phone number listed in the NPPES registry for Mark Stose is (206) 320-5200.
- Does Mark Stose accept Medicare?
- Mark Stose is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Stose's NPI active?
- Yes — Mark Stose's NPI (1871840157) is active in the NPPES registry as of the last update on 2012-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.