Colleen Williams, PA
NPI 1861421307 · Physician Assistant · Tuba City, AZ
Colleen Williams, PA is a Physician Assistant provider in Tuba City, AZ (NPI 1861421307).
Provider details
- NPI number
- 1861421307
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 2757 (AZ)
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
- 2006-06-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Colleen Williams's NPI number?
- Colleen Williams's National Provider Identifier (NPI) is 1861421307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Williams's specialty?
- Colleen Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Colleen Williams located?
- Colleen Williams's practice location on file with NPPES is 167 North Main Street, Tuba City, AZ 86045-0600.
- What is Colleen Williams's phone number?
- The practice phone number listed in the NPPES registry for Colleen Williams is (928) 283-2501.
- Is Colleen Williams's NPI active?
- Yes — Colleen Williams's NPI (1861421307) 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.