Michael Bonner, M.D.
NPI 1619911195 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Bonner, M.D. is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1619911195).
Provider details
- NPI number
- 1619911195
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 49199 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 18 |
| Mirtazapine | 17 |
| Pantoprazole Sodium | 15 |
| Sotalol Hclbrand: Sotalol | 14 |
| Finasteride | 14 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 12 |
| Apixabanbrand: Eliquis | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2010-08-11
Frequently asked questions
- What is Michael Bonner's NPI number?
- Michael Bonner's National Provider Identifier (NPI) is 1619911195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Bonner's specialty?
- Michael Bonner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Bonner located?
- Michael Bonner's practice location on file with NPPES is 5000 W National Ave, Milwaukee, WI 53295-0001.
- What is Michael Bonner's phone number?
- The practice phone number listed in the NPPES registry for Michael Bonner is (414) 384-2000.
- Does Michael Bonner accept Medicare?
- Michael Bonner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Bonner's NPI active?
- Yes — Michael Bonner's NPI (1619911195) is active in the NPPES registry as of the last update on 2010-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.