Marilyn Featherston, D.O.
NPI 1912312547 · Developmental - Behavioral Pediatrics Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Featherston, D.O. is a Developmental - Behavioral Pediatrics Physician provider in Chicago, IL (NPI 1912312547).
Provider details
- NPI number
- 1912312547
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 125-065670 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 6405 S Promontory DrChicago, ID 60649Phone: (773) 363-6700
- 3401 Civic Center BlvdDivision of Developmental PediatricsPhiladelphia, PA 19104Phone: (215) 590-6336
Registry dates
- Enumerated
- 2014-06-23
- Last updated
- 2020-06-11
- Certified
- 2020-06-11
Frequently asked questions
- What is Marilyn Featherston's NPI number?
- Marilyn Featherston's National Provider Identifier (NPI) is 1912312547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Featherston's specialty?
- Marilyn Featherston is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Marilyn Featherston located?
- Marilyn Featherston's practice location on file with NPPES is 1725 W Harrison St Ste 710, Chicago, IL 60612-3863.
- What is Marilyn Featherston's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Featherston is (312) 942-5000.
- Does Marilyn Featherston accept Medicare?
- Marilyn Featherston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Featherston's NPI active?
- Yes — Marilyn Featherston's NPI (1912312547) is active in the NPPES registry as of the last update on 2020-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.