Heather Gantzer, MD
NPI 1639154404 · Internal Medicine Physician · St Louis Park, MN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Gantzer, MD is a Internal Medicine Physician provider in St Louis Park, MN (NPI 1639154404).
Provider details
- NPI number
- 1639154404
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 31600 (MN)
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
2,235 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 408 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 205 | $124 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 200 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 172 | $126 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 156 | $174 |
| 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'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 604 | 170 |
| Losartan Potassium | 529 | 140 |
| Levothyroxine Sodium | 477 | 113 |
| Amlodipine Besylate | 354 | 95 |
| Omeprazole | 313 | 98 |
| Hydrochlorothiazide | 312 | 82 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-14
- Last updated
- 2021-06-10
- Certified
- 2021-06-10
Frequently asked questions
- What is Heather Gantzer's NPI number?
- Heather Gantzer's National Provider Identifier (NPI) is 1639154404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Gantzer's specialty?
- Heather Gantzer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Heather Gantzer located?
- Heather Gantzer's practice location on file with NPPES is 3850 Park Nicollet Blvd, St Louis Park, MN 55416-2527.
- What is Heather Gantzer's phone number?
- The practice phone number listed in the NPPES registry for Heather Gantzer is (952) 993-2000.
- Does Heather Gantzer accept Medicare?
- Heather Gantzer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Gantzer's NPI active?
- Yes — Heather Gantzer's NPI (1639154404) is active in the NPPES registry as of the last update on 2021-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.