Stephen Chasen, MD
NPI 1063468429 · Maternal & Fetal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Chasen, MD is a Maternal & Fetal Medicine Physician provider in New York, NY (NPI 1063468429).
Provider details
- NPI number
- 1063468429
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 203108 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2006-05-26
- Last updated
- 2012-11-08
Frequently asked questions
- What is Stephen Chasen's NPI number?
- Stephen Chasen's National Provider Identifier (NPI) is 1063468429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Chasen's specialty?
- Stephen Chasen is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Chasen located?
- Stephen Chasen's practice location on file with NPPES is 525 E 68th St, New York, NY 10065-4870.
- What is Stephen Chasen's phone number?
- The practice phone number listed in the NPPES registry for Stephen Chasen is (212) 746-3000.
- Does Stephen Chasen accept Medicare?
- Stephen Chasen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Chasen's NPI active?
- Yes — Stephen Chasen's NPI (1063468429) is active in the NPPES registry as of the last update on 2012-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.