Helen Mac, MD
NPI 1619404522 · Pediatric Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Mac, MD is a Pediatric Gastroenterology Physician provider in New York, NY (NPI 1619404522).
Provider details
- NPI number
- 1619404522
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 304501 (NY)
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
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
- 2017-05-23
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Helen Mac's NPI number?
- Helen Mac's National Provider Identifier (NPI) is 1619404522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Mac's specialty?
- Helen Mac is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Mac located?
- Helen Mac's practice location on file with NPPES is 550 1st Ave, New York, NY 10016-6402.
- What is Helen Mac's phone number?
- The practice phone number listed in the NPPES registry for Helen Mac is (212) 263-5506.
- Does Helen Mac accept Medicare?
- Helen Mac is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Mac's NPI active?
- Yes — Helen Mac's NPI (1619404522) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.