Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Marissa Erin Moritz-Guzik, MS, PA-C

Individual provider Physician Assistant · NPI 1457669772

Marissa Erin Moritz-Guzik, MS, PA-C is a Physician Assistant in Louisville, Colorado. Qualified in 2010, 16 years ago. Practices with Portercare Adventist Health System, a 767-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado.

Years since qualifying
16
Licensed in
CO
In the registry since
2010
Specialties on file
2
What do these letters mean?
MS — Master of Science
A graduate science degree.
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

80 Health Park Dr
Louisville, CO 80027-9584
Phone: (303) 269-2085
Fax: (303) 269-2089
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 11900 Grant St Ste 360, Northglenn, CO 80233-1117 — (303) 604-5000

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA.0005555 (CO)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1457669772
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , PA-C
Sole proprietorNo
NPI enumeratedSeptember 21, 2010
Last updated in NPPESOctober 9, 2020
Certification dateOctober 9, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients144
Services billed 259 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $48,182 33 payments
Travel and Lodging $11,746 22 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $4,442 173 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $2,550 2 payments

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Adventhealth Avista Hospital · Louisville, CO

Colleagues at Portercare Adventist Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 767 clinicians in the practice; 12 are shown here.

Other providers in Louisville