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

Dr. Marc Ydenberg, MD

Individual provider Emergency Medical Services (Emergency Medicine) Physician · NPI 1912928110

Dr. Marc Ydenberg, MD is an Emergency Medicine in Muskegon, Michigan. Qualified in 1999, 27 years ago. Practices with Lake Michigan Observation Services PLLC, a 32-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
27
Licensed in
MI
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

1700 Clinton St
Muskegon, MI 49442-5502
Phone: (231) 728-4601
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medical Services (Emergency Medicine) Physician (primary) Taxonomy 207PE0004X · Licence 4301074458 (MI)

Record details

NPI number1912928110
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 22, 2006
Last updated in NPPESAugust 19, 2010
Mailing addressPo Box 1487, Muskegon, MI 49443-5502

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Lake Michigan Observation Services Pllc — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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