Keith Luther, MD
NPI 1912001652 · Internal Medicine Physician · Mercer Island, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith Luther, MD is a Internal Medicine Physician provider in Mercer Island, WA (NPI 1912001652).
Provider details
- NPI number
- 1912001652
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00037360 (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
19 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
525 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 | 235 | $141 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 103 | $141 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 93 | $17 |
| Administration of Influenza Virus VaccineG0008 | 29 | $36 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 20 | $198 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 319 | 91 |
| Levothyroxine Sodium | 146 | 40 |
| Lisinopril | 137 | 35 |
| Losartan Potassium | 131 | 36 |
| Amlodipine Besylate | 95 | 27 |
| Metformin Hclbrand: Metformin Hcl Er | 78 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-12
- Last updated
- 2026-02-16
- Certified
- 2026-02-16
Frequently asked questions
- What is Keith Luther's NPI number?
- Keith Luther's National Provider Identifier (NPI) is 1912001652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Luther's specialty?
- Keith Luther is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Keith Luther located?
- Keith Luther's practice location on file with NPPES is 3236 78th Ave Se Ste 200, Mercer Island, WA 98040-3500.
- What is Keith Luther's phone number?
- The practice phone number listed in the NPPES registry for Keith Luther is (206) 275-5060.
- Does Keith Luther accept Medicare?
- Keith Luther is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keith Luther's NPI active?
- Yes — Keith Luther's NPI (1912001652) is active in the NPPES registry as of the last update on 2026-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.