Brenda Grass, MD
NPI 1356332753 · Adolescent Medicine (Internal Medicine) Physician · Fond Du Lac, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brenda Grass, MD is a Adolescent Medicine (Internal Medicine) Physician provider in Fond Du Lac, WI (NPI 1356332753).
Provider details
- NPI number
- 1356332753
- Entity type
- Individual
- Primary specialty
- Adolescent Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 43233 (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
255 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 | 77 | $61 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 73 | $122 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $90 |
| 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 | 33 | $15 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 16 | $33 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Simvastatin | 275 | 66 |
| Rosuvastatin Calcium | 185 | 55 |
| Lisinopril | 178 | 45 |
| Levothyroxine Sodium | 168 | 42 |
| Amlodipine Besylate | 148 | 39 |
| Metformin Hcl | 105 | 25 |
| Atorvastatin Calcium | 103 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-03
- Last updated
- 2020-12-10
- Certified
- 2020-12-10
Frequently asked questions
- What is Brenda Grass's NPI number?
- Brenda Grass's National Provider Identifier (NPI) is 1356332753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brenda Grass's specialty?
- Brenda Grass is listed in the NPPES registry with a primary specialty of Adolescent Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Brenda Grass located?
- Brenda Grass's practice location on file with NPPES is 420 E Division St, Fond Du Lac, WI 54935-4560.
- What is Brenda Grass's phone number?
- The practice phone number listed in the NPPES registry for Brenda Grass is (920) 926-8615.
- Does Brenda Grass accept Medicare?
- Brenda Grass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brenda Grass's NPI active?
- Yes — Brenda Grass's NPI (1356332753) is active in the NPPES registry as of the last update on 2020-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.