Michelle Spech-Holderbaum, MD
NPI 1851407167 · Internal Medicine Physician · Willoughby, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Spech-Holderbaum, MD is a Internal Medicine Physician provider in Willoughby, OH (NPI 1851407167).
Provider details
- NPI number
- 1851407167
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 35-058884 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
476 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 96 | $38 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 91 | $38 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 91 | $70 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 71 | $70 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 55 | $102 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 416 | 30 |
| Levothyroxine Sodium | 346 | 21 |
| Apixabanbrand: Eliquis | 310 | 22 |
| Pantoprazole Sodium | 208 | 21 |
| Tramadol Hcl | 169 | 18 |
| Amlodipine Besylate | 148 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-21
- Last updated
- 2021-03-01
- Certified
- 2021-03-01
Frequently asked questions
- What is Michelle Spech-Holderbaum's NPI number?
- Michelle Spech-Holderbaum's National Provider Identifier (NPI) is 1851407167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Spech-Holderbaum's specialty?
- Michelle Spech-Holderbaum is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Spech-Holderbaum located?
- Michelle Spech-Holderbaum's practice location on file with NPPES is 36100 Euclid Ave, Willoughby, OH 44094.
- What is Michelle Spech-Holderbaum's phone number?
- The practice phone number listed in the NPPES registry for Michelle Spech-Holderbaum is (440) 953-6294.
- Does Michelle Spech-Holderbaum accept Medicare?
- Michelle Spech-Holderbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Spech-Holderbaum's NPI active?
- Yes — Michelle Spech-Holderbaum's NPI (1851407167) is active in the NPPES registry as of the last update on 2021-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.