Zvonimir Krajcer, M.D.
NPI 1801816335 · Interventional Cardiology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zvonimir Krajcer, M.D. is a Interventional Cardiology Physician provider in Houston, TX (NPI 1801816335).
Provider details
- NPI number
- 1801816335
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- E5555 (TX)
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 tenure25% of score
19 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
790 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 294 | $130 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 149 | $14 |
| X-Ray of Chest, 2 Views71046 | 82 | $34 |
| Chemical Destruction of First Incompetent Vein of Arm Or Leg Using Imaging Guidance36482 | 45 | $1,653 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 45 | $175 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 98 | 37 |
| Metoprolol Succinate | 85 | 31 |
| Losartan Potassium | 77 | 27 |
| Apixabanbrand: Eliquis | 74 | 18 |
| Atorvastatin Calcium | 69 | 21 |
| Ezetimibe | 67 | 21 |
| Nebivolol Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,226 across 78 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
- 2006-07-20
- Last updated
- 2023-02-21
- Certified
- 2023-01-23
Frequently asked questions
- What is Zvonimir Krajcer's NPI number?
- Zvonimir Krajcer's National Provider Identifier (NPI) is 1801816335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zvonimir Krajcer's specialty?
- Zvonimir Krajcer is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Zvonimir Krajcer located?
- Zvonimir Krajcer's practice location on file with NPPES is 6624 Fannin St, Houston, TX 77030-2338.
- What is Zvonimir Krajcer's phone number?
- The practice phone number listed in the NPPES registry for Zvonimir Krajcer is (713) 790-9401.
- Does Zvonimir Krajcer accept Medicare?
- Zvonimir Krajcer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zvonimir Krajcer's NPI active?
- Yes — Zvonimir Krajcer's NPI (1801816335) is active in the NPPES registry as of the last update on 2023-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.