Marvin Griffin
NPI 1831503788 · Emergency Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marvin Griffin is a Emergency Medicine Physician provider in Seattle, WA (NPI 1831503788).
Provider details
- NPI number
- 1831503788
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- R74611 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
379 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 High Level of Medical Decision Making99285 | 119 | $179 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 92 | $124 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 85 | $8 |
| Critical Care, First 30-74 Minutes99291 | 69 | $220 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 14 | $73 |
Typical Medicare-allowed amounts for these services range $8–$220 (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 |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 57 | 56 |
| Oxycodone Hcl | 45 | 45 |
| Ibuprofen | 42 | 42 |
| Cephalexin | 38 | 37 |
| Prednisone | 20 | 20 |
| Cyclobenzaprine Hcl | 16 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-18
- Last updated
- 2023-04-27
- Certified
- 2023-04-27
Frequently asked questions
- What is Marvin Griffin's NPI number?
- Marvin Griffin's National Provider Identifier (NPI) is 1831503788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marvin Griffin's specialty?
- Marvin Griffin is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marvin Griffin located?
- Marvin Griffin's practice location on file with NPPES is 201 16th Ave E, Seattle, WA 98112-5226.
- What is Marvin Griffin's phone number?
- The practice phone number listed in the NPPES registry for Marvin Griffin is (206) 326-3000.
- Does Marvin Griffin accept Medicare?
- Marvin Griffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marvin Griffin's NPI active?
- Yes — Marvin Griffin's NPI (1831503788) is active in the NPPES registry as of the last update on 2023-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.