William Forsythe, DO, PLLC
NPI 1003143652 · Emergency Medical Services (Emergency Medicine) Physician · Kennewick, WA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Forsythe, DO, PLLC is a Emergency Medical Services (Emergency Medicine) Physician organization in Kennewick, WA (NPI 1003143652).
Provider details
- NPI number
- 1003143652
- Entity type
- Organization
- Primary specialty
- Emergency Medical Services (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Forsythe, Owner(509) 460-1065
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 tenure38% of score
16 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
- 2009-11-03
- Last updated
- 2025-11-21
- Certified
- 2025-11-21
Frequently asked questions
- What is William Forsythe, DO, PLLC's NPI number?
- William Forsythe, DO, PLLC's National Provider Identifier (NPI) is 1003143652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Forsythe, DO, PLLC?
- William Forsythe, DO, PLLC is classified in the NPPES registry as Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Forsythe, DO, PLLC located?
- William Forsythe, DO, PLLC's practice location on file with NPPES is 8656 W Gage Blvd Ste A106, Kennewick, WA 99336-1150.
- What is William Forsythe, DO, PLLC's phone number?
- The practice phone number listed in the NPPES registry for William Forsythe, DO, PLLC is (509) 366-2108.
- Does William Forsythe, DO, PLLC accept Medicare?
- William Forsythe, DO, PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William Forsythe, DO, PLLC?
- The authorized official listed on William Forsythe, DO, PLLC's NPPES record is William Forsythe, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William Forsythe, DO, PLLC's NPI active?
- Yes — William Forsythe, DO, PLLC's NPI (1003143652) is active in the NPPES registry as of the last update on 2025-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.