John O'Brien, PA-C
NPI 1639332844 · Physician Assistant · Tumwater, WA
John O'Brien, PA-C is a Physician Assistant provider in Tumwater, WA (NPI 1639332844).
Provider details
- NPI number
- 1639332844
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA10003178 (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
17 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
- 2008-07-08
- Last updated
- 2012-01-31
Frequently asked questions
- What is John O'Brien's NPI number?
- John O'Brien's National Provider Identifier (NPI) is 1639332844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John O'Brien's specialty?
- John O'Brien is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John O'Brien located?
- John O'Brien's practice location on file with NPPES is 6981 Littlerock Rd Sw, Tumwater, WA 98512-7226.
- What is John O'Brien's phone number?
- The practice phone number listed in the NPPES registry for John O'Brien is (360) 943-3633.
- Is John O'Brien's NPI active?
- Yes — John O'Brien's NPI (1639332844) is active in the NPPES registry as of the last update on 2012-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.