Dennis Haack, M.D.
NPI 1417052648 · Family Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Haack, M.D. is a Family Medicine Physician provider in Seattle, WA (NPI 1417052648).
Provider details
- NPI number
- 1417052648
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00026317 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 78 | 32 |
| Amlodipine Besylate | 41 | 18 |
| Gabapentin | 26 | — |
| Lisinopril | 24 | 13 |
| Metformin Hclbrand: Metformin Hcl Er | 23 | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 | — |
Practice location
Mailing address
Additional practice locations (1)
- 12721 30th Ave NeSeattle, WA 98125-4498Phone: (206) 417-0326
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2024-01-05
- Certified
- 2024-01-05
Frequently asked questions
- What is Dennis Haack's NPI number?
- Dennis Haack's National Provider Identifier (NPI) is 1417052648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Haack's specialty?
- Dennis Haack is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Haack located?
- Dennis Haack's practice location on file with NPPES is 9245 Rainier Ave S, Seattle, WA 98118-5569.
- What is Dennis Haack's phone number?
- The practice phone number listed in the NPPES registry for Dennis Haack is (206) 548-5850.
- Does Dennis Haack accept Medicare?
- Dennis Haack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Haack's NPI active?
- Yes — Dennis Haack's NPI (1417052648) is active in the NPPES registry as of the last update on 2024-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.