MELANIE MARIE CATACUTAN DARCY FNP-C, FNP-BC
NPI 1144900374
Internal Medicine - Endocrinology, Diabetes & Metabolism in Tempe, AZ

Active since July 21, 2023PECOS EnrolledAccepts Medicare Assignment
9900 S RURAL RD, TEMPE, AZ 85284(480) 783-6257(480) 783-6258 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 6, 2026, Nov 6, 2024, Jul 21, 2023 (3 updates tracked since 2023).

About Melanie Marie Catacutan Darcy Fnp-c, Fnp-bc NPPES

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

MELANIE MARIE CATACUTAN DARCY FNP-C, FNP-BC (NPI 1144900374) is an individual endocrinology, diabetes & metabolism provider in Tempe, Arizona, licensed in Arizona (273148) and active in the NPI registry since July 2023. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1144900374
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameMELANIE MARIE CATACUTAN DARCYCredential: FNP-C, FNP-BC
Location Address9900 S RURAL RDTempe, AZ 85284-4116
Mailing Address2620 Elm Hill PikeNashville, TN 37214-3108 · (888) 852-2567 · Fax (615) 891-5244
Fax(480) 783-6258
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateJuly 21, 2023
Last NPPES UpdateAugust 6, 20263 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1144900374 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in AZ · 273148
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 273148 (AZ)
9900 S RURAL RD, Tempe, AZ 85284

Secondary Practice Locations 2

Location 15520 W Chandler Blvd Ste 3Chandler, AZ 85226-3693 · Phone (602) 266-8463 · Fax (602) 266-0122
Location 29328 E Raintree DrScottsdale, AZ 85260-2098 · Phone (602) 266-8463 · Fax (602) 266-0122

Accepted 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

Melanie Marie Catacutan Darcy Fnp-c, Fnp-bc 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 ID6709249683
PECOS Enrollment IDI20230824002738
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 Reassignments

2

Medicare enrollment records show Melanie Marie Darcy reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family
1300 S WATSON RD
Buckeye, AZ 85326
  • Reassigned Medicare billing, Arizona enrollment
  • 107 clinicians in this Medicare group
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Arizona enrollment
  • 556 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.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
900 services12 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
33 services29 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
17 services14 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
15 services12 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
14 services11 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85284 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
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 15

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

Pharmacist
9900 S RURAL RD
TEMPE, AZ 85284
Pharmacist
9900 S RURAL RD
TEMPE, AZ 85284
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
9900 S RURAL RD
TEMPE, AZ 85284
Nurse Practitioner (Family)
9900 S RURAL RD
TEMPE, AZ 85284
Nurse Practitioner (Family)
9900 S RURAL RD
TEMPE, AZ 85284
Pharmacist
9900 S RURAL RD
TEMPE, AZ 85284
Pharmacist
9900 S RURAL RD
TEMPE, AZ 85284
Nurse Practitioner (Family)
9900 S RURAL RD
TEMPE, AZ 85284

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 Melanie Marie Darcy's NPI number?

The NPI number for Melanie Marie Darcy is 1144900374. It was assigned to this individual provider in the NPPES registry on July 21, 2023.

Where is Melanie Marie Darcy located?

Melanie Marie Darcy practices at 9900 S Rural Rd, Tempe, AZ 85284. The listed phone number is (480) 783-6257.

What is Melanie Marie Darcy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Melanie Marie Darcy enrolled in Medicare?

Yes. Melanie Marie Darcy 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 organizations bill Medicare for Melanie Marie Darcy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melanie Marie Darcy reassigns Medicare benefits to 2 organizations: The Little Clinic Of Arizona LLC (Buckeye, AZ) and Signify Health, LLC (Dallas, TX). Each 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 Melanie Marie Darcy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melanie Marie Darcy accept?

Health plans from Ambetter Health and Ambetter from Arizona Complete Health list Melanie Marie Darcy 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 Melanie Marie Darcy was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.