Margaret Bielefeld, PHYSICIAN ASSISTANT
NPI 1932938347 · Physician Assistant · New York, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Bielefeld, PHYSICIAN ASSISTANT is a Physician Assistant provider in New York, NY (NPI 1932938347).
Provider details
- NPI number
- 1932938347
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-08-01
- Last updated
- 2026-01-02
- Certified
- 2026-01-02
Frequently asked questions
- What is Margaret Bielefeld's NPI number?
- Margaret Bielefeld's National Provider Identifier (NPI) is 1932938347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Bielefeld's specialty?
- Margaret Bielefeld is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Bielefeld located?
- Margaret Bielefeld's practice location on file with NPPES is 1275 York Ave, New York, NY 10065-6007.
- What is Margaret Bielefeld's phone number?
- The practice phone number listed in the NPPES registry for Margaret Bielefeld is (720) 438-8010.
- Does Margaret Bielefeld accept Medicare?
- Margaret Bielefeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Bielefeld's NPI active?
- Yes — Margaret Bielefeld's NPI (1932938347) is active in the NPPES registry as of the last update on 2026-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.