Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Michelle Marie Spech-Holderbaum, MD

Individual provider Internal Medicine Physician · NPI 1851407167

Michelle Marie Spech-Holderbaum, MD is an Internal Medicine in Willoughby, Ohio. Graduated from Northeastern Ohio University College of Medicine in 1986, 40 years ago. Practices with Dr Miodrag Zivic LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
40
Trained at
Northeastern Ohio University College 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

36100 Euclid Ave #240
Willoughby, OH 44094
Phone: (440) 953-6294
Fax: (440) 918-4687
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35-058884 (OH)

Record details

NPI number1851407167
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 21, 2006
Last updated in NPPESMarch 1, 2021
Certification dateMarch 1, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNORTHEASTERN OHIO UNIVERSITY COLLEGE OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Dr Miodrag Zivic Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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