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CATHERINE A MASCARENAS MS, FNP-C
NPI 1043347065
Nurse Practitioner in Littleton, CO

Active since February 27, 2007PECOS EnrolledAccepts Medicare Assignment
7175 W FREMONT PL, LITTLETON, CO 80128(303) 518-1030 Get Directions Write a Review

NPPES record last updated: September 9, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 9, 2025, Apr 2, 2021, Jan 17, 2020 and 1 more (4 updates tracked since 2017).

About Catherine A Mascarenas Ms, Fnp-c NPPES

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

CATHERINE A MASCARENAS MS, FNP-C (NPI 1043347065) is an individual nurse practitioner in Littleton, Colorado, licensed in Colorado (118557) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2002).

NPPES Registry Identity

NPI1043347065
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCATHERINE A MASCARENASCredential: MS, FNP-C
Location Address7175 W FREMONT PLLittleton, CO 80128-4748
Mailing Address7175 W Fremont PlLittleton, CO 80128-4748
Phone(303) 518-1030
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateFebruary 27, 2007
Last NPPES UpdateSeptember 9, 20254 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2025
✔ NPI 1043347065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CO · 118557
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
7175 W FREMONT PL, Littleton, CO 80128
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Other Identifiers 1

Medicaid44130881CO

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Catherine A Mascarenas Ms, Fnp-c 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 ID2961560412
PECOS Enrollment IDI20081028000153
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80128 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
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
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.

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 Catherine Mascarenas's NPI number?

The NPI number for Catherine Mascarenas is 1043347065. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is Catherine Mascarenas located?

Catherine Mascarenas practices at 7175 W Fremont Pl, Littleton, CO 80128. The listed phone number is (303) 518-1030.

What is Catherine Mascarenas's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Catherine Mascarenas enrolled in Medicare?

Yes. Catherine Mascarenas 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.

When was this NPI record last updated?

The NPPES record for Catherine Mascarenas was last updated on September 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.