Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Marissa Rose Muscat, MD

Individual provider Family Medicine Physician · NPI 1881690485

Dr. Marissa Rose Muscat, MD is a Hospitalist in South Lake Tahoe, California. Graduated from Michigan State University College of Human Medicine in 2000, 26 years ago. Practices with Barton Healthcare System, a 25-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Trained at
Michigan State University College of Human Medicine
Licensed in
CA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2170 S Ave
South Lake Tahoe, CA 96150-7026
Phone: (530) 541-3420
Fax: (530) 541-8723
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A81313 (CA)
Family Medicine Physician Taxonomy 207Q00000X · Licence A81313 (CA)

Record details

NPI number1881690485
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 28, 2005
Last updated in NPPESNovember 7, 2017

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 2000 (26 years in practice)
Group practice Barton Healthcare System — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients278
Services billed 624 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Barton Healthcare System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 25 clinicians in the practice; 12 are shown here.

Other providers in South Lake Tahoe