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MELISSA GUILLERMO MD
NPI 1841505187
Pediatrics - Neonatal-Perinatal Medicine in Staten Island, NY

Active since August 11, 2010PECOS Enrolled
355 BARD AVE RM 314, STATEN ISLAND, NY 10310(718) 818-4636(718) 818-2739 Get Directions Write a Review

NPPES record last updated: September 26, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 22, 2020, Mar 28, 2017 (2 updates tracked since 2017).

About Melissa Guillermo Md NPPES

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

MELISSA GUILLERMO MD (NPI 1841505187) is an individual neonatal-perinatal medicine provider in Staten Island, New York, licensed in New York (319242) and active in the NPI registry since August 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841505187
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameMELISSA GUILLERMOCredential: MD
Location Address355 BARD AVE RM 314Staten Island, NY 10310-1699
Mailing Address355 Bard Ave Rm 314Staten Island, NY 10310-1699 · (925) 384-7761 · Fax (718) 818-2739
Phone(718) 818-4636
Fax(718) 818-2739
Sole ProprietorYes
Enumeration DateAugust 11, 2010
Last NPPES UpdateSeptember 26, 20232 updates tracked since enumeration
NPPES CertifiedSeptember 26, 2023
✔ NPI 1841505187 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in NY · 319242
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
355 BARD AVE RM 314, Staten Island, NY 10310
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Melissa Guillermo Md 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.

Medicare Billing Reassignment

Medicare enrollment records show Melissa Guillermo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Amboy Medical Practice PC
Same address
Diagnostic Radiology
355 BARD AVE
Staten Island, NY 10310
  • Reassigned Medicare billing, New York enrollment
  • 305 clinicians in this Medicare group
NPI 1104692672 (718) 818-1234

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 4

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

ALEKSANDRA TODOROVA MD
Student in an Organized Health Care Education/Training Program
355 BARD AVE RM 314
STATEN ISLAND, NY 10310
Richmond County (718) 818-4636
SAMEH ELSHAHAWY MD
Student in an Organized Health Care Education/Training Program
355 BARD AVE RM 314
STATEN ISLAND, NY 10310
Richmond County (562) 441-0391
DR. HIRA JAWAD MD
Student in an Organized Health Care Education/Training Program
355 BARD AVE RM 314
STATEN ISLAND, NY 10310
Richmond County (718) 818-4636
DR. PRATEETI BEKOJU MD
Student in an Organized Health Care Education/Training Program
355 BARD AVE RM 314
STATEN ISLAND, NY 10310
Richmond County (718) 818-4636

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 Melissa Guillermo's NPI number?

The NPI number for Melissa Guillermo is 1841505187. It was assigned to this individual provider in the NPPES registry on August 11, 2010.

Where is Melissa Guillermo located?

Melissa Guillermo practices at 355 Bard Ave Rm 314, Staten Island, NY 10310. The listed phone number is (718) 818-4636.

What is Melissa Guillermo's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Melissa Guillermo enrolled in Medicare?

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

Which organization bills Medicare for Melissa Guillermo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Guillermo reassigns Medicare benefits to Amboy Medical Practice PC (Staten Island, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa Guillermo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Melissa Guillermo was last updated on September 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.