Walter Williamson, RN, CRNA
NPI 1477691939 · Certified Registered Nurse Anesthetist · North Chicago, IL
Walter Williamson, RN, CRNA is a Certified Registered Nurse Anesthetist provider in North Chicago, IL (NPI 1477691939).
Provider details
- NPI number
- 1477691939
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, CRNA
- Sex
- Male
- Sole proprietor
- Yes
- License
- 669610 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
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
- 2007-02-04
- Last updated
- 2018-09-04
Frequently asked questions
- What is Walter Williamson's NPI number?
- Walter Williamson's National Provider Identifier (NPI) is 1477691939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Williamson's specialty?
- Walter Williamson is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Walter Williamson located?
- Walter Williamson's practice location on file with NPPES is 3001 Green Bay Rd, North Chicago, IL 60064.
- What is Walter Williamson's phone number?
- The practice phone number listed in the NPPES registry for Walter Williamson is (847) 688-1900.
- Is Walter Williamson's NPI active?
- Yes — Walter Williamson's NPI (1477691939) is active in the NPPES registry as of the last update on 2018-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.