Clara Armstrong, RN, NP
NPI 1558330696 · Adult Health Nurse Practitioner · Chicago, IL
Clara Armstrong, RN, NP is a Adult Health Nurse Practitioner provider in Chicago, IL (NPI 1558330696).
Provider details
- NPI number
- 1558330696
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, NP
- Sex
- Female
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
20 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2006-03-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Clara Armstrong's NPI number?
- Clara Armstrong's National Provider Identifier (NPI) is 1558330696, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clara Armstrong's specialty?
- Clara Armstrong is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clara Armstrong located?
- Clara Armstrong's practice location on file with NPPES is 820 S Damen Ave, Chicago, IL 60612-3728.
- What is Clara Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Clara Armstrong is (312) 569-8387.
- Is Clara Armstrong's NPI active?
- Yes — Clara Armstrong's NPI (1558330696) 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.