Peter Chang-Sing, MD
NPI 1659807170 · Clinical Cardiac Electrophysiology Physician · Santa Rosa, CA
Peter Chang-Sing, MD is a Clinical Cardiac Electrophysiology Physician organization in Santa Rosa, CA (NPI 1659807170).
Provider details
- NPI number
- 1659807170
- Entity type
- Organization
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Peter Chang-Sing, Owner(707) 573-7070
- License
- G59460 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-03
- Last updated
- 2017-05-03
Frequently asked questions
- What is Peter Chang-Sing, MD's NPI number?
- Peter Chang-Sing, MD's National Provider Identifier (NPI) is 1659807170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Peter Chang-Sing, MD?
- Peter Chang-Sing, MD is classified in the NPPES registry as Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Chang-Sing, MD located?
- Peter Chang-Sing, MD's practice location on file with NPPES is 500 Doyle Park Dr, Santa Rosa, CA 95405-4558.
- What is Peter Chang-Sing, MD's phone number?
- The practice phone number listed in the NPPES registry for Peter Chang-Sing, MD is (707) 573-7070.
- Who is the authorized official for Peter Chang-Sing, MD?
- The authorized official listed on Peter Chang-Sing, MD's NPPES record is Peter Chang-Sing, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Peter Chang-Sing, MD's NPI active?
- Yes — Peter Chang-Sing, MD's NPI (1659807170) is active in the NPPES registry as of the last update on 2017-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.