Quick answers
- Does Shadi Kalantarian accept Medicare assignment?
- Yes. Medicare's clinician data says Shadi Kalantarian 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 Shadi Kalantarian see?
- In 2024, CMS data shows 683 Original Medicare patients and 2,947 services for Shadi Kalantarian. This counts Original Medicare only and measures volume, not quality.
- What is Shadi Kalantarian's NPI number?
- 1871906875. 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 Shadi Kalantarian, 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 | 683 |
|---|---|
| Services billed to Medicare | 2,947 |
| Different services or procedures | 60 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)488 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)376 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)335 services
- Heart rhythm recording of continous external ekg over 8-15 days (93246)147 services
- Heart rhythm review and interpretation of continous external ekg over 8-15 days (93248)147 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%
- Atrial fibrillation75%
- Arthritis47%
- Ischemic heart disease37%
- Heart failure31%
Hospitals where Shadi Kalantarian works
Medicare's Facility Affiliation Data lists Shadi Kalantarian 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.
- Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
- Sequoia HospitalRedwood City, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050197
Practice locations
Addresses where Shadi Kalantarian is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.
- 123 S San Mateo DrSan Mateo, CA 94401 (650) 343‑4200
- 1501 Trousdale DrBurlingame, CA 94010 (650) 696‑5400
- 1501 Trousdale Dr, Suite 215Burlingame, CA 94010 (415) 600‑6400
- 170 Alameda De Las PulgasRedwood City, CA 94062 (650) 369‑5811
- 1950 University Ave, Suite 160East Palo Alto, CA 94303 (650) 317‑8100
Group practices
Medicare enrollment lists Shadi Kalantarian as a member of this group (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
Find other Cardiac Electrophysiology doctors in California →
Other cardiac electrophysiologists in San Mateo
Clinicians with the same Medicare primary specialty in San Mateo, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1871906875 |
| 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