Marian Johnston, M.D.
NPI 1437107059 · Pain Medicine (Anesthesiology) Physician · Mount Vernon, WA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marian Johnston, M.D. is a Pain Medicine (Anesthesiology) Physician provider in Mount Vernon, WA (NPI 1437107059).
Provider details
- NPI number
- 1437107059
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD00035789 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
260 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 225 | $126 |
| Testing for Presence of Drug, Read By Direct Observation80305 | 35 | $12 |
Typical Medicare-allowed amounts for these services range $12–$126 (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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 122 | 11 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 77 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 63 | — |
| Gabapentin | 44 | 12 |
| Tizanidine Hcl | 24 | — |
| Oxycodone Myristatebrand: Xtampza Er | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-05
- Last updated
- 2011-04-13
Frequently asked questions
- What is Marian Johnston's NPI number?
- Marian Johnston's National Provider Identifier (NPI) is 1437107059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marian Johnston's specialty?
- Marian Johnston is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Marian Johnston located?
- Marian Johnston's practice location on file with NPPES is 125 N 18th St, Mount Vernon, WA 98273-3902.
- What is Marian Johnston's phone number?
- The practice phone number listed in the NPPES registry for Marian Johnston is (360) 336-0123.
- Does Marian Johnston accept Medicare?
- Marian Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marian Johnston's NPI active?
- Yes — Marian Johnston's NPI (1437107059) is active in the NPPES registry as of the last update on 2011-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.