Robert Ang, MD
NPI 1225219025 · Sleep Medicine (Internal Medicine) Physician · Sunnyvale, CA
Robert Ang, MD is a Sleep Medicine (Internal Medicine) Physician provider in Sunnyvale, CA (NPI 1225219025).
Provider details
- NPI number
- 1225219025
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A55893 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2007-11-20
- Last updated
- 2007-11-20
Frequently asked questions
- What is Robert Ang's NPI number?
- Robert Ang's National Provider Identifier (NPI) is 1225219025, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Ang's specialty?
- Robert Ang is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Ang located?
- Robert Ang's practice location on file with NPPES is 500 E Remington Dr Ste 18, Sunnyvale, CA 94087-2611.
- What is Robert Ang's phone number?
- The practice phone number listed in the NPPES registry for Robert Ang is (408) 730-5858.
- Is Robert Ang's NPI active?
- Yes — Robert Ang's NPI (1225219025) is active in the NPPES registry as of the last update on 2007-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.