Claudia Castellanos, RN
NPI 1538702949 · Addiction (Substance Use Disorder) Registered Nurse · Chicago, IL
Claudia Castellanos, RN is a Addiction (Substance Use Disorder) Registered Nurse provider in Chicago, IL (NPI 1538702949).
Provider details
- NPI number
- 1538702949
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 041284176 (IL)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2019-10-18
- Last updated
- 2019-10-18
Frequently asked questions
- What is Claudia Castellanos's NPI number?
- Claudia Castellanos's National Provider Identifier (NPI) is 1538702949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudia Castellanos's specialty?
- Claudia Castellanos is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Registered Nurse (Nursing Service Providers).
- Where is Claudia Castellanos located?
- Claudia Castellanos's practice location on file with NPPES is 140 N Ashland Ave, Chicago, IL 60607-1802.
- What is Claudia Castellanos's phone number?
- The practice phone number listed in the NPPES registry for Claudia Castellanos is (312) 850-0050.
- Is Claudia Castellanos's NPI active?
- Yes — Claudia Castellanos's NPI (1538702949) is active in the NPPES registry as of the last update on 2019-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.