Quick answers
- Does Naaman J. Griffin accept Medicare assignment?
- Yes. Medicare's clinician data says Naaman J. Griffin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Naaman J. Griffin see?
- In 2024, CMS data shows 22 Original Medicare patients and 89 services for Naaman J. Griffin. This counts Original Medicare only and measures volume, not quality.
- What is Naaman J. Griffin's NPI number?
- 1487335964. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Naaman J. Griffin, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 22 |
|---|---|
| Services billed to Medicare | 89 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 62 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)41 services
- Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)18 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Depression75%
- Anxiety75%
- High cholesterol64%
- High blood pressure55%
Practice locations
Addresses where Naaman J. Griffin is enrolled with Medicare (CMS data updated October 2, 2026).
- 105 W 8th Ave, Suite 418cSpokane, WA 99204 (509) 474‑6920
- 105 W 8th Ave, Suite 560eSpokane, WA 99204 (509) 474‑6920
Group practices
Medicare enrollment lists Naaman J. Griffin as a member of this group (CMS data updated October 2, 2026).
- Providence Health and Services Washington784 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Spokane
Clinicians with the same Medicare primary specialty in Spokane, WA — not a recommendation.
Other clinicians in Providence Health and Services Washington
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1487335964 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians