Michael Lenaeus, M.D.
NPI 1316262538 · Hospitalist Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Lenaeus, M.D. is a Hospitalist Physician provider in Seattle, WA (NPI 1316262538).
Provider details
- NPI number
- 1316262538
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD60344940 (WA)
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
16 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
211 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 120 | $86 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 35 | $130 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $189 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 18 | $142 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 12 | $127 |
Typical Medicare-allowed amounts for these services range $86–$189 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-30
- Last updated
- 2018-01-08
Frequently asked questions
- What is Michael Lenaeus's NPI number?
- Michael Lenaeus's National Provider Identifier (NPI) is 1316262538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Lenaeus's specialty?
- Michael Lenaeus is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Lenaeus located?
- Michael Lenaeus's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-0001.
- What is Michael Lenaeus's phone number?
- The practice phone number listed in the NPPES registry for Michael Lenaeus is (206) 598-4333.
- Does Michael Lenaeus accept Medicare?
- Michael Lenaeus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Lenaeus's NPI active?
- Yes — Michael Lenaeus's NPI (1316262538) is active in the NPPES registry as of the last update on 2018-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.