Quick answers
- Does Gurunath Rajapuram accept Medicare assignment?
- Yes. Medicare's clinician data says Gurunath Rajapuram 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 Gurunath Rajapuram see?
- In 2024, CMS data shows 589 Original Medicare patients and 4,566 services for Gurunath Rajapuram. This counts Original Medicare only and measures volume, not quality.
- What is Gurunath Rajapuram's NPI number?
- 1144238510. 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 Gurunath Rajapuram, 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 | 589 |
|---|---|
| Services billed to Medicare | 4,566 |
| Different services or procedures | 55 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds) (J0153)660 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)585 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)554 services
- Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days (93297)405 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)374 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 disease61%
- Diabetes49%
- Arthritis46%
- Chronic kidney disease44%
Hospitals where Gurunath Rajapuram works
Medicare's Facility Affiliation Data lists Gurunath Rajapuram 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.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
- Sutter Auburn Faith HospitalAuburn, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050498
- Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050523
Practice locations
Addresses where Gurunath Rajapuram is enrolled with Medicare (CMS data updated October 2, 2026).
- 3200 Lone Tree Way, Suite 101Antioch, CA 94509 (925) 777‑3360
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1982 (44 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) | 1144238510 |
| 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