Quick answers
- Does Balaji Natarajan accept Medicare assignment?
- Yes. Medicare's clinician data says Balaji Natarajan 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 Balaji Natarajan see?
- In 2024, CMS data shows 878 Original Medicare patients and 2,589 services for Balaji Natarajan. This counts Original Medicare only and measures volume, not quality.
- What is Balaji Natarajan's NPI number?
- 1366822801. 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 Balaji Natarajan, 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 | 878 |
|---|---|
| Services billed to Medicare | 2,589 |
| Different services or procedures | 98 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)622 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)223 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)149 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)145 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)120 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 cholesterol75%
- Ischemic heart disease56%
- Arthritis54%
- Atrial fibrillation50%
- Heart failure47%
Hospitals where Balaji Natarajan works
Medicare's Facility Affiliation Data lists Balaji Natarajan 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.
- Banner Boswell Medical CenterSun City, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030061
- Banner del E. Webb Medical CenterSun City West, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030093
- Banner Thunderbird Medical CenterGlendale, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 030089
Practice locations
Addresses where Balaji Natarajan is enrolled with Medicare (CMS data updated October 2, 2026).
- 10503 W Thunderbird Blvd, Suite 103Sun City, AZ 85351 (623) 974‑3649
- 13460 N 94th Dr, Suite J1Peoria, AZ 85381 (623) 876‑8816
Group practices
Medicare enrollment lists Balaji Natarajan as a member of these groups (CMS data updated October 2, 2026).
- Joseph a Caplan MD PC29 clinicians in the group
- Kumar Ravi MD Facc PC6 clinicians in the group
Specialties
Other interventional cardiologists in Sun City
Clinicians with the same Medicare primary specialty in Sun City, AZ — not a recommendation.
Other clinicians in Joseph a Caplan MD PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366822801 |
| 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