Derek Colmenares, MD
NPI 1831180470 · Family Medicine Physician · Fond Du Lac, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Colmenares, MD is a Family Medicine Physician provider in Fond Du Lac, WI (NPI 1831180470).
Provider details
- NPI number
- 1831180470
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 43322 (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
302 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 | 70 | $116 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $91 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $122 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 36 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $61 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 489 | 127 |
| Losartan Potassium | 200 | 54 |
| Lisinopril | 199 | 57 |
| Omeprazole | 185 | 51 |
| Metoprolol Succinate | 166 | 45 |
| Amlodipine Besylate | 149 | 43 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-02
- Last updated
- 2020-12-28
- Certified
- 2020-12-28
Frequently asked questions
- What is Derek Colmenares's NPI number?
- Derek Colmenares's National Provider Identifier (NPI) is 1831180470, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Colmenares's specialty?
- Derek Colmenares is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Colmenares located?
- Derek Colmenares's practice location on file with NPPES is 420 E Division St, Fond Du Lac, WI 54935-4560.
- What is Derek Colmenares's phone number?
- The practice phone number listed in the NPPES registry for Derek Colmenares is (920) 926-8200.
- Does Derek Colmenares accept Medicare?
- Derek Colmenares is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Colmenares's NPI active?
- Yes — Derek Colmenares's NPI (1831180470) is active in the NPPES registry as of the last update on 2020-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.