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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIA DEL CARMEN CASTILLO FNP
NPI 1922753615
Nurse Practitioner - Family in Mesa, AZ

Active since February 21, 2022PECOS EnrolledAccepts Medicare Assignment
616 E SOUTHERN AVE STE 103, MESA, AZ 85204(602) 569-3999 Get Directions Write a Review

NPPES record last updated: September 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 9, 2026, Jun 8, 2022, Feb 21, 2022 (3 updates tracked since 2022).

About Maria Del Carmen Castillo Fnp NPPES

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

MARIA DEL CARMEN CASTILLO FNP (NPI 1922753615) is an individual family provider in Mesa, Arizona, licensed in Arizona (273453) and active in the NPI registry since February 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Mesa, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1922753615
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARIA DEL CARMEN CASTILLOCredential: FNP
Location Address616 E SOUTHERN AVE STE 103Mesa, AZ 85204-4941
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203 · Fax (702) 838-1456
Phone(602) 569-3999
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateFebruary 21, 2022
Last NPPES UpdateSeptember 9, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2026
✔ NPI 1922753615 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in AZ · 273453
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
616 E SOUTHERN AVE STE 103, Mesa, AZ 85204
Open in Google Maps ↗

Secondary Practice Location 1

Location 13048 E Baseline Rd Ste 120Mesa, AZ 85204-7288 · Phone (480) 505-3276 · Fax (480) 505-3288

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Maria Del Carmen Castillo Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799164992
PECOS Enrollment IDI20220617001991
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 Maria Del Carmen Castillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinica La Familia, PC
19 mi
Internal Medicine
13402 N 32ND ST
Phoenix, AZ 85032
  • Reassigned Medicare billing, Arizona enrollment
  • 32 clinicians in this Medicare group
NPI 1780668921 (602) 569-3999

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 85204 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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 8

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

ERICK TORRES FNP
Nurse Practitioner (Family)
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
FREDDY L MONTENEGRO NP
Nurse Practitioner (Family)
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
JENNYFER NAYELI WILLFORD NP
Nurse Practitioner (Family)
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
SANDY PAULINE MORALES PA-C
Physician Assistant
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
ALEX GUZMAN GARCIA PA-C
Physician Assistant
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
MR. FRANCIS RAHUL LUCIANO PA
Physician Assistant
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
LICEETT PENA FNP-C
Nurse Practitioner (Family)
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999
JULIANA MIAN DO PRADO PA-C
Physician Assistant
616 E SOUTHERN AVE STE 103
MESA, AZ 85204
Maricopa County (602) 569-3999

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 Maria Del Carmen Castillo's NPI number?

The NPI number for Maria Del Carmen Castillo is 1922753615. It was assigned to this individual provider in the NPPES registry on February 21, 2022.

Where is Maria Del Carmen Castillo located?

Maria Del Carmen Castillo practices at 616 E Southern Ave Ste 103, Mesa, AZ 85204. The listed phone number is (602) 569-3999.

What is Maria Del Carmen Castillo's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Maria Del Carmen Castillo enrolled in Medicare?

Yes. Maria Del Carmen Castillo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Maria Del Carmen Castillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Del Carmen Castillo reassigns Medicare benefits to Clinica La Familia, PC (Phoenix, AZ). 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 Maria Del Carmen Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria Del Carmen Castillo accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and UnitedHealthcare list Maria Del Carmen Castillo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Del Carmen Castillo was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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.