IndividualActive
Mary De Lance, RN
NPI 1225929938 · Registered Nurse · Chicago, IL
Mary De Lance, RN is a Registered Nurse provider in Chicago, IL (NPI 1225929938).
Provider details
- NPI number
- 1225929938
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 041.485638 (IL)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
1620 W Harrison St
Chicago, IL 60612-3801
Phone: (312) 942-5000
Street-level locationGet directions
Mailing address
4112 Cove Ln Apt C
Glenview, IL 60025-3576
Registry dates
- Enumerated
- 2025-07-11
- Last updated
- 2025-07-11
- Certified
- 2025-07-11
Frequently asked questions
- What is Mary De Lance's NPI number?
- Mary De Lance's National Provider Identifier (NPI) is 1225929938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary De Lance's specialty?
- Mary De Lance is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Mary De Lance located?
- Mary De Lance's practice location on file with NPPES is 1620 W Harrison St, Chicago, IL 60612-3801.
- What is Mary De Lance's phone number?
- The practice phone number listed in the NPPES registry for Mary De Lance is (312) 942-5000.
- Is Mary De Lance's NPI active?
- Yes — Mary De Lance's NPI (1225929938) is active in the NPPES registry as of the last update on 2025-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.