Quick answers
- Which hospitals does Siddharth A. Wartak work at?
- Medicare's official clinician data lists Siddharth A. Wartak at 1 hospital: Kaiser Foundation Hospital Manteca. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Siddharth A. Wartak see patients?
- Medicare's clinician data lists 1 practice location in Modesto, CA. Call before your visit to confirm the address.
- What is Siddharth A. Wartak's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Siddharth A. Wartak accept Medicare assignment?
- Yes. Medicare's clinician data says Siddharth A. Wartak accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Siddharth A. Wartak?
- (209) 735-5000, as listed in official Medicare / NPI Registry data.
- What is Siddharth A. Wartak's NPI number?
- 1649478801. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Siddharth A. Wartak works
Medicare's Facility Affiliation Data lists Siddharth A. Wartak at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital MantecaManteca, CA · Acute Care Hospital · CCN 050748
Practice locations
Addresses where Siddharth A. Wartak is enrolled with Medicare (CMS data updated 2026-10-02).
- 4601 Dale RdModesto, CA 95356 (209) 735‑5000
Group practices
Medicare enrollment lists Siddharth A. Wartak as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Modesto
Clinicians with the same Medicare primary specialty in Modesto, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649478801 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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