Timothy Joos, MD
NPI 1740265735 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Joos, MD is a Internal Medicine Physician provider in Seattle, WA (NPI 1740265735).
Provider details
- NPI number
- 1740265735
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00043045 (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
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
116 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 59 | $10 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 57 | $3 |
Typical Medicare-allowed amounts for these services range $3–$10 (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 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 398 | 131 |
| Losartan Potassium | 261 | 74 |
| Amlodipine Besylate | 238 | 83 |
| Gabapentin | 224 | 56 |
| Omeprazole | 216 | 72 |
| Metformin Hclbrand: Metformin Hcl Er | 200 | 63 |
| Dulaglutide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-13
- Last updated
- 2011-11-03
Frequently asked questions
- What is Timothy Joos's NPI number?
- Timothy Joos's National Provider Identifier (NPI) is 1740265735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Joos's specialty?
- Timothy Joos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Joos located?
- Timothy Joos's practice location on file with NPPES is 4400 37th Ave S, Seattle, WA 98118-1609.
- What is Timothy Joos's phone number?
- The practice phone number listed in the NPPES registry for Timothy Joos is (206) 461-6957.
- Does Timothy Joos accept Medicare?
- Timothy Joos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Joos's NPI active?
- Yes — Timothy Joos's NPI (1740265735) is active in the NPPES registry as of the last update on 2011-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.