Stephen Allen, PA-C
NPI 1891878609 · Physician Assistant · Richland, WA
Stephen Allen, PA-C is a Physician Assistant provider in Richland, WA (NPI 1891878609).
Provider details
- NPI number
- 1891878609
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA10003238 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
- 2006-10-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Allen's NPI number?
- Stephen Allen's National Provider Identifier (NPI) is 1891878609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Allen's specialty?
- Stephen Allen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephen Allen located?
- Stephen Allen's practice location on file with NPPES is 948 Stevens Dr, Richland, WA 99352-3547.
- What is Stephen Allen's phone number?
- The practice phone number listed in the NPPES registry for Stephen Allen is (509) 946-1020.
- Is Stephen Allen's NPI active?
- Yes — Stephen Allen's NPI (1891878609) 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.