Barbara Grzaba-Gracz, MD
NPI 1366557316 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Grzaba-Gracz, MD is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1366557316).
Provider details
- NPI number
- 1366557316
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036-108135 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
997 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 | 560 | $113 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 224 | $114 |
| Administration of Influenza Virus VaccineG0008 | 42 | $30 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 39 | $160 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 31 | $13 |
| Anticoagulant Management of Patient Taking Warfarin93793 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 177 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,181 | 307 |
| Levothyroxine Sodium | 914 | 211 |
| Amlodipine Besylate | 808 | 214 |
| Losartan Potassium | 804 | 226 |
| Pantoprazole Sodium | 787 | 180 |
| Omeprazole | 635 | 167 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-20
- Last updated
- 2024-05-29
- Certified
- 2024-05-29
Frequently asked questions
- What is Barbara Grzaba-Gracz's NPI number?
- Barbara Grzaba-Gracz's National Provider Identifier (NPI) is 1366557316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Grzaba-Gracz's specialty?
- Barbara Grzaba-Gracz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Grzaba-Gracz located?
- Barbara Grzaba-Gracz's practice location on file with NPPES is 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 53215-3693.
- What is Barbara Grzaba-Gracz's phone number?
- The practice phone number listed in the NPPES registry for Barbara Grzaba-Gracz is (414) 385-8600.
- Does Barbara Grzaba-Gracz accept Medicare?
- Barbara Grzaba-Gracz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Grzaba-Gracz's NPI active?
- Yes — Barbara Grzaba-Gracz's NPI (1366557316) is active in the NPPES registry as of the last update on 2024-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.