Quick answers
- Does Shun K. Sunder accept Medicare assignment?
- Yes. Medicare's clinician data says Shun K. Sunder 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 Shun K. Sunder see?
- In 2024, CMS data shows 412 Original Medicare patients and 3,586 services for Shun K. Sunder. This counts Original Medicare only and measures volume, not quality.
- What is Shun K. Sunder's NPI number?
- 1376557132. 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 Shun K. Sunder, 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 | 412 |
|---|---|
| Services billed to Medicare | 3,586 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)475 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)472 services
- Electrocardiogram (ecg) 1 to 3 leads with review by physician (93040)436 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)368 services
- Injection, regadenoson, 0.1 mg (J2785)344 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%
- Diabetes71%
- Heart failure64%
- Arthritis60%
- COPD46%
Hospitals where Shun K. Sunder works
Medicare's Facility Affiliation Data lists Shun K. Sunder 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.
- Antelope Valley HospitalLancaster, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050056
- Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051333
Practice locations
Addresses where Shun K. Sunder is enrolled with Medicare (CMS data updated October 2, 2026).
- 43860 10th St WLancaster, CA 93534
- 43860 10th St W, Suite 203Lancaster, CA 93534
- 43860 W 10th St, Suite 203Lancaster, CA 93534
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1968 (58 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) | 1376557132 |
| 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