Terry Zarling, M.D.
NPI 1871562298 · Interventional Cardiology Physician · Mukwonago, WI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Terry Zarling, M.D. is a Interventional Cardiology Physician provider in Mukwonago, WI (NPI 1871562298).
Provider details
- NPI number
- 1871562298
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 28927 (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
1,279 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 | 493 | $120 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 159 | $8 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 138 | $64 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 82 | $20 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 82 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 1,428 | 403 |
| Apixabanbrand: Eliquis | 860 | 153 |
| Metoprolol Succinate | 828 | 226 |
| Atorvastatin Calcium | 532 | 155 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 413 | 122 |
| Lisinopril | 385 | 112 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-16
- Last updated
- 2024-01-05
- Certified
- 2024-01-05
Frequently asked questions
- What is Terry Zarling's NPI number?
- Terry Zarling's National Provider Identifier (NPI) is 1871562298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Terry Zarling's specialty?
- Terry Zarling is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Terry Zarling located?
- Terry Zarling's practice location on file with NPPES is 240 Maple Ave, Mukwonago, WI 53149-8475.
- What is Terry Zarling's phone number?
- The practice phone number listed in the NPPES registry for Terry Zarling is (262) 928-8800.
- Does Terry Zarling accept Medicare?
- Terry Zarling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Terry Zarling's NPI active?
- Yes — Terry Zarling's NPI (1871562298) is active in the NPPES registry as of the last update on 2024-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.