Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Marcus Daniel Fazzari, DO

Individual provider Emergency Medicine Physician · NPI 1275067480

Dr. Marcus Daniel Fazzari, DO practises Emergency Medicine in Eau Claire, Wisconsin. Graduated from Pacific NW Un of Hs, Col of Osteopathic Medicine in 2017, 9 years ago. Practices with Mayo Clinic Health System-Northwest Wisconsin Region Inc, a 799-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan and Wisconsin.

Years since qualifying
9
Trained at
Pacific NW Un of Hs, Col of Osteopathic Medicine
Licensed in
MI, WI
In the registry since
2017
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1400 Bellinger St
Eau Claire, WI 54703-5222
Phone: (715) 838-5222
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 900 W Clairemont Ave, Eau Claire, WI 54701-6122 — (715) 717-4222

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 74679 (WI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 5101025210 (MI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1275067480
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 13, 2017
Last updated in NPPESApril 4, 2024
Certification dateApril 4, 2024

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolPACIFIC NW UN OF HS, COL OF OSTEOPATHIC MEDICINE
Graduated 2017 (9 years in practice)
Group practice Mayo Clinic Health System-Northwest Wisconsin Region Inc — 799 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients289
Services billed 354 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

  • Mayo Clinic Health System-Red Cedar Inc Hospital · Menomonie, WI · listed as Mayo Clinic Health System-Northwest Wisconsin Region, Inc
  • Mayo Clinic Health System Eau Claire Hospital Hospital · Eau Claire, WI
  • Mayo Clinic Health System-Northland Hospital · Barron, WI

Colleagues at Mayo Clinic Health System-Northwest Wisconsin Region Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 799 clinicians in the practice; 12 are shown here.

Other providers in Eau Claire