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GIULLIANA MARIA GONZALEZ PORTILLO CRNP
NPI 1225400757
Nurse Practitioner - Pediatrics in Washington, DC

Active since October 23, 2015PECOS Enrolled
2333 ONTARIO RD NW, ATTN: MARANGELY NAZARIO, WASHINGTON, DC 20009(202) 420-7175(202) 232-2745 Get Directions Write a Review

NPPES record last updated: March 2, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Giulliana Maria Gonzalez Portillo Crnp NPPES

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

GIULLIANA MARIA GONZALEZ PORTILLO CRNP (NPI 1225400757) is an individual pediatrics provider in Washington, District Of Columbia, licensed in District Of Columbia (RN1038874) and active in the NPI registry since October 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225400757
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameGIULLIANA MARIA GONZALEZ PORTILLOCredential: CRNP
Location Address2333 ONTARIO RD NW, ATTN: MARANGELY NAZARIOWashington, DC 20009-2627
Mailing Address2333 Ontario Rd Nw, Attn: Marangely NazarioWashington, DC 20009-2627 · (202) 420-7175 · Fax (202) 232-2745
Phone(202) 420-7175
Fax(202) 232-2745
Sole ProprietorNo
Enumeration DateOctober 23, 2015
Last NPPES UpdateMarch 2, 2024
NPPES CertifiedMarch 2, 2024
✔ NPI 1225400757 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
Licenses✔ Licensed in DC · RN1038874✔ Licensed in MD · R218295✔ Licensed in VA · 0024178826.
2333 ONTARIO RD NW, Washington, DC 20009
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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)

Giulliana Maria Gonzalez Portillo Crnp 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 Giulliana Gonzalez Portillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mary's Center For Maternal And Child Care, Inc
Same address
Federally Qualified Health Center (FQHC)
2333 ONTARIO RD. NW
Washington, DC 20009
  • Reassigned Medicare billing, District of Columbia enrollment
  • Medicare enrollment name: Marys Center For Maternal And Child Care Inc
  • 175 clinicians in this Medicare group
NPI 1962520288 (202) 483-8196

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 20009 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

JOANNA ESTHER RIVERA-SANTANA RN
Registered Nurse (Community Health)
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 483-8196
DR. ESTELA M. GONZALEZ MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 420-7121
MARY'S CENTER FOR MATERNAL & CHILD CARE, INC
Specialist
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 483-8196
CHRISTINA M HOEHNER
Social Worker
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 235-1900
MARY'S CENTER FOR MATERNAL & CHILD CARE, INC
Dentist (Dental Public Health)
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 483-8196
GABRIELA SANTAMARIA CPNP-PC, IBCLC
Nurse Practitioner (Pediatrics)
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 483-8196
ABIGAIL WILLIAMS LGSW
Social Worker
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 483-8196
MS. CARLA CECILIA CORNEJO RDH
Dental Hygienist
2333 ONTARIO RD NW
WASHINGTON, DC 20009
District of Columbia (202) 545-8023

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 Giulliana Gonzalez Portillo's NPI number?

The NPI number for Giulliana Gonzalez Portillo is 1225400757. It was assigned to this individual provider in the NPPES registry on October 23, 2015.

Where is Giulliana Gonzalez Portillo located?

Giulliana Gonzalez Portillo practices at 2333 Ontario Rd NW Attn: Marangely Nazario, Washington, DC 20009. The listed phone number is (202) 420-7175.

What is Giulliana Gonzalez Portillo's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Giulliana Gonzalez Portillo enrolled in Medicare?

Yes. Giulliana Gonzalez Portillo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Giulliana Gonzalez Portillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Giulliana Gonzalez Portillo reassigns Medicare benefits to Mary's Center For Maternal And Child Care, Inc (Washington, DC). 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 Giulliana Gonzalez Portillo'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 Giulliana Gonzalez Portillo was last updated on March 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.