DR. GUILLERMO ELIAS PI M.D.
NPI 1366898777
Pediatrics - Adolescent Medicine in New York, NY

Active since May 04, 2016PECOS Enrolled
550 1ST AVE, NEW YORK, NY 10016(212) 263-5506 Get Directions Write a Review

NPPES record last updated: May 15, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: May 15, 2026, Aug 4, 2025, May 29, 2020 and 1 more (4 updates tracked since 2016).

About Dr. Guillermo Elias Pi M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GUILLERMO ELIAS PI M.D. (NPI 1366898777) is an individual adolescent medicine provider in New York, New York, licensed in New York (297594) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366898777
Entity TypeIndividualMale
Primary Taxonomy2080A0000X
Provider Legal NameDR. GUILLERMO ELIAS PICredential: M.D.
Location Address550 1ST AVENew York, NY 10016-6402
Mailing Address550 1st AveNew York, NY 10016-6402 · (212) 263-5506
Sole ProprietorYes
Enumeration DateMay 4, 2016
Last NPPES UpdateMay 15, 20264 updates tracked since enumeration
NPPES CertifiedMay 15, 2026
NPI 1366898777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyPediatrics · Adolescent MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080A0000X
License Licensed in NY · 297594
Definition

A pediatrician who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.

Also ListedInternal Medicine · Adolescent MedicineTaxonomy 207RA0000X · License 297594 (NY)
Also ListedPediatricsTaxonomy 208000000X · License 297594 (NY)
550 1ST AVE, New York, NY 10016

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Guillermo Elias Pi M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Anesthetist, Certified Registered
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Nurse Anesthetist, Certified Registered
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Anesthesiology
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Anesthesiology
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Nurse Anesthetist, Certified Registered
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Anesthesiology
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Nurse Anesthetist, Certified Registered
550 1ST AVE, RUSK 607
NEW YORK, NY 10016
Nurse Anesthetist, Certified Registered
550 1ST AVE, RUSK 607
NEW YORK, NY 10016

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Guillermo Pi's NPI number?

The NPI number for Guillermo Pi is 1366898777. It was assigned to this individual provider in the NPPES registry on May 4, 2016.

Where is Guillermo Pi located?

Guillermo Pi practices at 550 1st Ave, New York, NY 10016. The listed phone number is (212) 263-5506.

What is Guillermo Pi's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.

Is Guillermo Pi enrolled in Medicare?

Yes. Guillermo Pi is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Guillermo Pi was last updated on May 15, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.