Peter Timmermans, MD
NPI 1346223690 · Family Medicine Physician · Waupun, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Timmermans, MD is a Family Medicine Physician provider in Waupun, WI (NPI 1346223690).
Provider details
- NPI number
- 1346223690
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 23519 (WI)
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
20 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
276 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $85 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 37 | $53 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 27 | $13 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 17 | $169 |
Typical Medicare-allowed amounts for these services range $13–$169 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 47 | 22 |
| Cefdinir | 47 | 43 |
| Furosemide | 29 | 13 |
| Omeprazole | 28 | 11 |
| Prednisone | 27 | 24 |
| Celecoxib | 27 | 15 |
| Losartan Potassium | 26 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-21
- Last updated
- 2021-12-15
- Certified
- 2021-12-15
Frequently asked questions
- What is Peter Timmermans's NPI number?
- Peter Timmermans's National Provider Identifier (NPI) is 1346223690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Timmermans's specialty?
- Peter Timmermans is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Timmermans located?
- Peter Timmermans's practice location on file with NPPES is 608 W Brown St, Waupun, WI 53963-1702.
- What is Peter Timmermans's phone number?
- The practice phone number listed in the NPPES registry for Peter Timmermans is (920) 324-6801.
- Does Peter Timmermans accept Medicare?
- Peter Timmermans is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Timmermans's NPI active?
- Yes — Peter Timmermans's NPI (1346223690) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.