DR. MELISSA DANIELLA GUILLAUME MD
NPI 1497913842
Pediatrics in Brooklyn, NY

Active since May 31, 2008PECOS Enrolled
121 DEKALB AVE, BROOKLYN, NY 11201(718) 250-6919 Get Directions Write a Review

NPPES record last updated: July 30, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Melissa Daniella Guillaume Md NPPES

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

DR. MELISSA DANIELLA GUILLAUME MD (NPI 1497913842) is an individual pediatrics provider in Brooklyn, New York, licensed in New York (241069) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497913842
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MELISSA DANIELLA GUILLAUMECredential: MD
Location Address121 DEKALB AVEBrooklyn, NY 11201-5425
Mailing Address121 Dekalb AveBrooklyn, NY 11201-5425 · (718) 250-6919
Sole ProprietorYes
Enumeration DateMay 31, 2008
Last NPPES UpdateJuly 30, 2013
✔ NPI 1497913842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · 241069
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
121 DEKALB AVE, Brooklyn, NY 11201

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Melissa Daniella Guillaume 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 Guillaume reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pediatrics
240 WILLOUGHBY ST
Brooklyn, NY 11201
  • Reassigned Medicare billing, New York enrollment
  • 27 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Pharmacist (Nutrition Support)
121 DEKALB AVE, B231
BROOKLYN, NY 11201
Student in an Organized Health Care Education/Training Program
121 DEKALB AVE
BROOKLYN, NY 11201
Student in an Organized Health Care Education/Training Program
121 DEKALB AVE
BROOKLYN, NY 11201
Orthopaedic Surgery (Hand Surgery)
121 DEKALB AVE, ORTHOSUITE
BROOKLYN, NY 11201
Student in an Organized Health Care Education/Training Program
121 DEKALB AVE, HOUSE STAFF ADMINISTRATION
BROOKLYN, NY 11201
Physical Therapist
121 DEKALB AVE
BROOKLYN, NY 11201
Nurse Practitioner (Family)
121 DEKALB AVE
BROOKLYN, NY 11201
Student in an Organized Health Care Education/Training Program
121 DEKALB AVE
BROOKLYN, NY 11201

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 Guillaume's NPI number?

The NPI number for Melissa Guillaume is 1497913842. It was assigned to this individual provider in the NPPES registry on May 31, 2008.

Where is Melissa Guillaume located?

Melissa Guillaume practices at 121 Dekalb Ave, Brooklyn, NY 11201. The listed phone number is (718) 250-6919.

What is Melissa Guillaume's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Melissa Guillaume enrolled in Medicare?

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

Which organization bills Medicare for Melissa Guillaume's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Guillaume reassigns Medicare benefits to Tbhc Pediatric Services PC (Brooklyn, 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 Guillaume'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 Guillaume was last updated on July 30, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.