Gretchen Mueller
NPI 1487219333 · Family Medicine Physician · Waukesha, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Mueller is a Family Medicine Physician provider in Waukesha, WI (NPI 1487219333).
Provider details
- NPI number
- 1487219333
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- 81722 (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
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
52 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 22 | $121 |
Typical Medicare-allowed amounts for these services range $85–$121 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 35 | 18 |
| Amlodipine Besylate | 31 | 11 |
| Lisinopril | 27 | 13 |
| Metformin Hcl | 25 | 12 |
| Rosuvastatin Calcium | 22 | — |
| Omeprazole | 22 | — |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (1)
- 500 S Preston St Rm 305Louisville, KY 40202-1702Phone: (502) 852-8696
Registry dates
- Enumerated
- 2019-05-07
- Last updated
- 2024-07-24
- Certified
- 2024-07-24
Frequently asked questions
- What is Gretchen Mueller's NPI number?
- Gretchen Mueller's National Provider Identifier (NPI) is 1487219333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Mueller's specialty?
- Gretchen Mueller is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gretchen Mueller located?
- Gretchen Mueller's practice location on file with NPPES is 210 Nw Barstow St Ste 201, Waukesha, WI 53188-3771.
- What is Gretchen Mueller's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Mueller is (262) 548-6903.
- Does Gretchen Mueller accept Medicare?
- Gretchen Mueller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Mueller's NPI active?
- Yes — Gretchen Mueller's NPI (1487219333) is active in the NPPES registry as of the last update on 2024-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.