Joseph Knapp, MD
NPI 1588636492 · Cardiovascular Disease Physician · Seattle, WA
Joseph Knapp, MD is a Cardiovascular Disease Physician provider in Seattle, WA (NPI 1588636492).
Provider details
- NPI number
- 1588636492
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00041935 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joseph Knapp's NPI number?
- Joseph Knapp's National Provider Identifier (NPI) is 1588636492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Knapp's specialty?
- Joseph Knapp is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Knapp located?
- Joseph Knapp's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101-2756.
- What is Joseph Knapp's phone number?
- The practice phone number listed in the NPPES registry for Joseph Knapp is (206) 223-6600.
- Is Joseph Knapp's NPI active?
- Yes — Joseph Knapp's NPI (1588636492) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.