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

Individual provider Emergency Medicine Physician · NPI 1003907494

Dr. William R. Marriott, MD is an Emergency Medicine in Dayton, Ohio. Graduated from Wright State University Boonshoft School of Medicine in 1991, 35 years ago. Practices with Phs Emergency Billing LLC, a 71-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
35
Trained at
Wright State University Boonshoft School of Medicine
Licensed in
OH
In the registry since
2006
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

1 Wyoming St
Dayton, OH 45409-2722
Phone: (513) 281-4400
Fax: (513) 587-8213
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 35-063868 (OH)

Record details

NPI number1003907494
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESJuly 21, 2010
Mailing address2950 Robertson Ave, 2nd Floor, Cincinnati, OH 45209-1268

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolWRIGHT STATE UNIVERSITY BOONSHOFT SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Phs Emergency Billing Llc — 71 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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