Michelle Marie Spech-Holderbaum, MD
Internal Medicine Physician · Willoughby, OH
Michelle Marie Spech-Holderbaum, MD is an internal medicine physician with a practice address in Willoughby, Ohio, and NPI 1851407167, issued on Aug 21, 2006. Check the license (Ohio 35-058884, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Michelle Marie Spech-Holderbaum
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35-058884 OH
Self-reported in NPPES; status is on the state search - Practice location
- 36100 Euclid Ave, Willoughby, OH 44094
- Phone
- (440) 953-6294
- Enumerated
- Aug 21, 2006
- Record last updated
- Mar 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (440) 918-4687
- Medicaid ID
- 0756945 OH
- Medicare enrollment
- Enrolled (PECOS I20070621000575); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 36100 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michelle Marie Spech-Holderbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-058884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average internal medicine physician in 2024
5,101 Medicare Part D claims for 80 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 176 claims were for opioids.
Most prescribed
- Atorvastatin Calcium416 claims
- Levothyroxine Sodium346 claims
- Eliquis310 claims
- Pantoprazole Sodium208 claims
- Tramadol Hcl169 claims
- Amlodipine Besylate148 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Dr Miodrag Zivic LLCBeachwood, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michelle Marie Spech-Holderbaum among 5,277 internal medicine physician records in Ohio
Michelle Marie Spech-Holderbaum, MD is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1986 · median 2006 among the 3,414 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Willoughby
They are 24 of the 1,110 NPPES records with a practice address in Willoughby, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Willoughby → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stephen Archacki, MDEuclid, OH 440941376526053
- Syed Ashraf, M.D.Willoughby, OH 440941760431860
- Laura Bailey, MDWilloughby, OH 440941770699019
- Mitchell Ballin, MDWilloughby, OH 440941104866565
- Mihaela Donca, M.D.Willoughby, OH 440941881635670
- Sujata Khosla, M.DWilloughby, OH 440941730198425
- Sandeep Kotak, MDWilloughby, OH 440941013023357
- Inna Krasnyansky, M.D.Willoughby, OH 440941053312298
Common questions
What is Michelle Marie Spech-Holderbaum, MD's NPI number?
Michelle Marie Spech-Holderbaum, MD's National Provider Identifier (NPI) is 1851407167, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michelle Marie Spech-Holderbaum, MD located?
The NPPES record lists a practice address at 36100 Euclid Ave, Willoughby, OH, 44094. Phone: (440) 953-6294. Providers update this record themselves, so call before visiting.
How can I verify Michelle Marie Spech-Holderbaum, MD's license?
NPPES lists Ohio license number 35-058884, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michelle Marie Spech-Holderbaum, MD prescribe under Medicare Part D?
In 2024, Michelle Marie Spech-Holderbaum, MD had 5,101 Medicare Part D claims for 80 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.