Quick answers
- Does Josephine C. Chou Catanzaro accept Medicare assignment?
- Yes. Medicare's clinician data says Josephine C. Chou Catanzaro accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Josephine C. Chou Catanzaro see?
- In 2024, CMS data shows 2,024 Original Medicare patients and 3,452 services for Josephine C. Chou Catanzaro. This counts Original Medicare only and measures volume, not quality.
- What is Josephine C. Chou Catanzaro's NPI number?
- 1346403359. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Josephine C. Chou Catanzaro, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,024 |
|---|---|
| Services billed to Medicare | 3,452 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)2,370 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)358 services
- Ultrasound of heart blood flow, valves and chambers, follow-up (93321)73 services
- Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)67 services
- Ultrasound of heart, follow-up (93308)65 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol73%
- Arthritis54%
- Ischemic heart disease43%
- Chronic kidney disease41%
- Heart failure39%
Hospitals where Josephine C. Chou Catanzaro works
Medicare's Facility Affiliation Data lists Josephine C. Chou Catanzaro at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- AdventHealth Castle RockCastle Rock, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060125
- AdventHealth LittletonLittleton, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060113
- AdventHealth ParkerParker, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060114
- AdventHealth PorterDenver, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060064
- University of Colorado Hospital AuthorityAurora, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060024
Practice locations
Addresses where Josephine C. Chou Catanzaro is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 1000 Southpark DrLittleton, CO 80120 (303) 744‑1065
- 2350 Meadows BlvdCastle Rock, CO 80109 (720) 455‑0650
- 2353 Meadows Blvd, Suite 300Castle Rock, CO 80109 (720) 455‑3750
- 2360 Meadows Blvd, Suite 300Castle Rock, CO 80109 (303) 715‑7106
- 2525 S Downing StDenver, CO 80210
Group practices
Medicare enrollment lists Josephine C. Chou Catanzaro as a member of this group (CMS data updated October 2, 2026).
- Portercare Adventist Health System774 clinicians in the group
Specialties
- Advanced Heart Failure and Transplant Cardiologyprimary
- Cardiac Electrophysiologyalso
- Cardiovascular Disease (Cardiology)also
- Internal Medicinealso
Find other Advanced Heart Failure and Transplant Cardiology doctors in Colorado →
Other heart failure and transplant cardiologists in Colorado
Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.
- Leo Simpson, MD
- Josephine Harrington, MD
- Benjamin Kopecky, MD
- Christine Sailer, MD
- Prateeti P. Khazanie, MD
- Amrut V. Ambardekar, MD
- Larry A. Allen, MD
- Andreas Brieke, MD
All heart failure and transplant cardiologists in Colorado →
Other clinicians in Portercare Adventist Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346403359 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians