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CATHERINE AMY SIMAN
NPI 1558129031
Physician Assistant in Fort Collins, CO

Active since March 11, 2024PECOS EnrolledAccepts Medicare Assignment
1001 E HARMONY RD # A103, FORT COLLINS, CO 80525(970) 237-2239 Get Directions Write a Review

NPPES record last updated: February 26, 2025. Verified against the NPPES registry weekly; last sync: September 20, 2026.

About Catherine Amy Siman NPPES

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

CATHERINE AMY SIMAN (NPI 1558129031) is an individual physician assistant in Fort Collins, Colorado, licensed in Colorado (PA.0008653) and active in the NPI registry since March 2024. She is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (2024).

NPPES Registry Identity

NPI1558129031
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameCATHERINE AMY SIMAN
Location Address1001 E HARMONY RD # A103Fort Collins, CO 80525-8891
Mailing Address1001 E Harmony Rd # A103Fort Collins, CO 80525-8891
Phone(970) 237-2239
Sole ProprietorNo
Medical School CMSYale University School Of MedicineGraduated 2024
Enumeration DateMarch 11, 2024
Last NPPES UpdateFebruary 26, 2025
NPPES CertifiedFebruary 26, 2025
✔ NPI 1558129031 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CO · PA.0008653
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1001 E HARMONY RD # A103, Fort Collins, CO 80525
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

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 Amy Siman 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 ID4082137153
PECOS Enrollment IDI20250328002958
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 80525 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
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
Most-billed visit code 99213
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 Siman's NPI number?

The NPI number for Catherine Siman is 1558129031. It was assigned to this individual provider in the NPPES registry on March 11, 2024.

Where is Catherine Siman located?

Catherine Siman practices at 1001 E Harmony Rd # A103, Fort Collins, CO 80525. The listed phone number is (970) 237-2239.

What is Catherine Siman's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Catherine Siman enrolled in Medicare?

Yes. Catherine Siman 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.

What insurance does Catherine Siman accept?

Health plans from Medica list Catherine Siman 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 Catherine Siman was last updated on February 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.