Melissa Guillermo, MD
NPI 1841505187 · Neonatal-Perinatal Medicine Physician · Staten Island, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Guillermo, MD is a Neonatal-Perinatal Medicine Physician provider in Staten Island, NY (NPI 1841505187).
Provider details
- NPI number
- 1841505187
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 319242 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-08-11
- Last updated
- 2023-09-26
- Certified
- 2023-09-26
Frequently asked questions
- What is Melissa Guillermo's NPI number?
- Melissa Guillermo's National Provider Identifier (NPI) is 1841505187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Guillermo's specialty?
- Melissa Guillermo is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Melissa Guillermo located?
- Melissa Guillermo's practice location on file with NPPES is 355 Bard Ave Rm 314, Staten Island, NY 10310-1699.
- What is Melissa Guillermo's phone number?
- The practice phone number listed in the NPPES registry for Melissa Guillermo is (718) 818-4636.
- Does Melissa Guillermo accept Medicare?
- Melissa Guillermo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Guillermo's NPI active?
- Yes — Melissa Guillermo's NPI (1841505187) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.