Quick answers
- Which hospitals does Peter D. Chang Sing work at?
- Medicare's official clinician data lists Peter D. Chang Sing at 4 hospitals: Healdsburg Hospital, Petaluma Valley Hospital, Providence Santa Rosa Memorial Hospital and Providence St Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter D. Chang Sing see patients?
- Medicare's clinician data lists 6 practice locations, including Santa Rosa, CA, Petaluma, CA and Anaheim, CA. Call before your visit to confirm the address.
- What is Peter D. Chang Sing's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology) and Critical Care (Intensivists).
- Does Peter D. Chang Sing accept Medicare assignment?
- Yes. Medicare's clinician data says Peter D. Chang Sing 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.
- Does Peter D. Chang Sing offer telehealth?
- Medicare's clinician data says Peter D. Chang Sing offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Peter D. Chang Sing?
- (707) 546-3210, as listed in official Medicare / NPI Registry data.
- What is Peter D. Chang Sing's NPI number?
- 1386678902. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Peter D. Chang Sing works
Medicare's Facility Affiliation Data lists Peter D. Chang Sing at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Healdsburg HospitalHealdsburg, CA · Critical Access Hospital · CCN 051321
- Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · CCN 050136
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
- Providence St Joseph HospitalEureka, CA · Acute Care Hospital · CCN 050006
Practice locations
Addresses where Peter D. Chang Sing is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1165 Montgomery DrSanta Rosa, CA 95405 (707) 546‑3210
- 141 Lynch Creek Way, Suite CPetaluma, CA 94954 (707) 763‑0802
- 200 W Ctr St PromenadeAnaheim, CA 92805
- 2773 Harris StEureka, CA 95503
- 500 Doyle Park DrSanta Rosa, CA 95405
Group practices
Medicare enrollment lists Peter D. Chang Sing as a member of this group (CMS data updated 2026-10-02).
- Providence Medical Foundation1,466 clinicians in the group
Specialties
- Cardiac Electrophysiologyprimary
- Cardiovascular Disease (Cardiology)also
- Critical Care (Intensivists)also
Find other Cardiac Electrophysiology doctors in California →
Other cardiac electrophysiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Yale University School Of Medicine |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1386678902 |
| 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