Marissa Erin Moritz-Guzik, MS, PA-C
Physician Assistant · Louisville, CO
Marissa Erin Moritz-Guzik, MS, PA-C is a physician assistant with a practice address in Louisville, Colorado, and NPI 1457669772, issued on Sep 21, 2010. Check the license (Colorado PA.0005555, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa Erin Moritz-Guzik
- Credential
- MS, PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA.0005555 CO
Self-reported in NPPES; status is on the state search - Practice location
- 80 Health Park Dr, Louisville, CO 80027
- Phone
- (303) 269-2085
- Enumerated
- Sep 21, 2010
- Record last updated
- Oct 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (303) 269-2089
- Medicaid ID
- 9000168190 CO
- Medicare enrollment
- Enrolled (PECOS I20181211000151); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,767 in Colorado → Look up another NPI →
Also registered at 80 Health Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Gentile, OTR CHTOccupational Therapist1548232705
Verify Marissa Erin Moritz-Guzik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license PA.0005555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average physician assistant in 2024
725 Medicare Part D claims for 210 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Pantoprazole Sodium214 claims
- Omeprazole78 claims
- Famotidine75 claims
- Budesonide Dr46 claims
- Dicyclomine Hcl27 claims
- Ondansetron Odt19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $21,140.72
176 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Portercare Adventist Health SystemDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa Erin Moritz-Guzik among 3,767 physician assistant records in Colorado
Marissa Erin Moritz-Guzik, MS, PA-C is one of 3,767 physician assistant records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 31% of them.
- NPI issued2010 · 31% of these records are older, 66% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2017 among the 2,351 with a school on file
- Record last updated2020 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 physician assistant records list a practice address in Louisville
They are 27 of the 785 NPPES records with a practice address in Louisville, and 3,767 physician assistant records in Colorado.
All 3,767 in Colorado → Every provider in Louisville → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Joanna Baskett, PALouisville, CO 800271366492100
- Matthew BattagliaLouisville, CO 800271972818227
- Yaicha Bryan, PALouisville, CO 800271689076861
- Chelsea Floyd, PA-CLouisville, CO 800271548406432
- Sarah Foss, PA-CLouisville, CO 800271417252669
- Jeremy James, PA-CLouisville, CO 800271942535067
- Mary Jannik, PALouisville, CO 800271265653570
- Katrina Klaren, PA - CLouisville, CO 800271790998755
Common questions
What is Marissa Erin Moritz-Guzik, MS, PA-C's NPI number?
Marissa Erin Moritz-Guzik, MS, PA-C's National Provider Identifier (NPI) is 1457669772, issued on Sep 21, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Erin Moritz-Guzik, MS, PA-C located?
The NPPES record lists a practice address at 80 Health Park Dr, Louisville, CO, 80027. Phone: (303) 269-2085. Providers update this record themselves, so call before visiting.
How can I verify Marissa Erin Moritz-Guzik, MS, PA-C's license?
NPPES lists Colorado license number PA.0005555, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa Erin Moritz-Guzik, MS, PA-C prescribe under Medicare Part D?
In 2024, Marissa Erin Moritz-Guzik, MS, PA-C had 725 Medicare Part D claims for 210 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.