Maureen Mckiernan, MD
NPI 1255864369 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · New York, NY
Enrolled with Medicare as Practitioner - Cardiac Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maureen Mckiernan, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in New York, NY (NPI 1255864369).
Provider details
- NPI number
- 1255864369
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 336148 (NY)
Specialties & taxonomies
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianPrimary208G00000XLicense 25MA12722600 (NJ)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-04-05
- Last updated
- 2026-01-05
- Certified
- 2026-01-05
Frequently asked questions
- What is Maureen Mckiernan's NPI number?
- Maureen Mckiernan's National Provider Identifier (NPI) is 1255864369, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maureen Mckiernan's specialty?
- Maureen Mckiernan is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Maureen Mckiernan located?
- Maureen Mckiernan's practice location on file with NPPES is 3959 Broadway, New York, NY 10032-1559.
- What is Maureen Mckiernan's phone number?
- The practice phone number listed in the NPPES registry for Maureen Mckiernan is (212) 305-5437.
- Does Maureen Mckiernan accept Medicare?
- Maureen Mckiernan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maureen Mckiernan's NPI active?
- Yes — Maureen Mckiernan's NPI (1255864369) is active in the NPPES registry as of the last update on 2026-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.