Frederick Leaf, MD
NPI 1588679252 · Dermatology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Leaf, MD is a Dermatology Physician provider in Seattle, WA (NPI 1588679252).
Provider details
- NPI number
- 1588679252
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00021885 (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
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
- 2006-07-30
- Last updated
- 2012-04-18
Frequently asked questions
- What is Frederick Leaf's NPI number?
- Frederick Leaf's National Provider Identifier (NPI) is 1588679252, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Leaf's specialty?
- Frederick Leaf is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Leaf located?
- Frederick Leaf's practice location on file with NPPES is 904 7th Ave, Seattle, WA 98104-1132.
- What is Frederick Leaf's phone number?
- The practice phone number listed in the NPPES registry for Frederick Leaf is (206) 329-1760.
- Does Frederick Leaf accept Medicare?
- Frederick Leaf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Leaf's NPI active?
- Yes — Frederick Leaf's NPI (1588679252) is active in the NPPES registry as of the last update on 2012-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.