David Grambow, MD
NPI 1235178674 · Cardiovascular Disease Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Grambow, MD is a Cardiovascular Disease Physician provider in Milwaukee, WI (NPI 1235178674).
Provider details
- NPI number
- 1235178674
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28836 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,803 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 460 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 327 | $90 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 308 | $64 |
| Heart Muscle Strain Imaging93356 | 149 | $11 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 103 | $11 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 705 | 202 |
| Metoprolol Succinate | 635 | 181 |
| Ezetimibe | 493 | 138 |
| Atorvastatin Calcium | 450 | 128 |
| Spironolactone | 390 | 111 |
| Empagliflozinbrand: Jardiance | 379 | 87 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39,542 across 42 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-04
- Last updated
- 2012-06-12
Frequently asked questions
- What is David Grambow's NPI number?
- David Grambow's National Provider Identifier (NPI) is 1235178674, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Grambow's specialty?
- David Grambow is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is David Grambow located?
- David Grambow's practice location on file with NPPES is 2350 N Lake Dr, Milwaukee, WI 53211-4528.
- What is David Grambow's phone number?
- The practice phone number listed in the NPPES registry for David Grambow is (414) 271-1633.
- Does David Grambow accept Medicare?
- David Grambow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Grambow's NPI active?
- Yes — David Grambow's NPI (1235178674) is active in the NPPES registry as of the last update on 2012-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.