Stephanie Chassen, M.D.
NPI 1538480983 · Neonatal-Perinatal Medicine Physician · Aurora, CO
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Chassen, M.D. is a Neonatal-Perinatal Medicine Physician provider in Aurora, CO (NPI 1538480983).
Provider details
- NPI number
- 1538480983
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MT196942 (PA)
Specialties & taxonomies
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
16 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
- 2010-06-21
- Last updated
- 2016-07-05
Frequently asked questions
- What is Stephanie Chassen's NPI number?
- Stephanie Chassen's National Provider Identifier (NPI) is 1538480983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Chassen's specialty?
- Stephanie Chassen is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Chassen located?
- Stephanie Chassen's practice location on file with NPPES is 13121 E 17th Ave, Aurora, CO 80045-2535.
- What is Stephanie Chassen's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Chassen is (303) 724-2867.
- Does Stephanie Chassen accept Medicare?
- Stephanie Chassen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Chassen's NPI active?
- Yes — Stephanie Chassen's NPI (1538480983) is active in the NPPES registry as of the last update on 2016-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.