Robert Hillyard, M.D.
NPI 1073607842 · Neonatal-Perinatal Medicine Physician · Orange, CA
Robert Hillyard, M.D. is a Neonatal-Perinatal Medicine Physician provider in Orange, CA (NPI 1073607842).
Provider details
- NPI number
- 1073607842
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G55855 (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
19 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
- 2006-10-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Hillyard's NPI number?
- Robert Hillyard's National Provider Identifier (NPI) is 1073607842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Hillyard's specialty?
- Robert Hillyard is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Hillyard located?
- Robert Hillyard's practice location on file with NPPES is 455 S Main St, Orange, CA 92868-3835.
- What is Robert Hillyard's phone number?
- The practice phone number listed in the NPPES registry for Robert Hillyard is (714) 532-8620.
- Is Robert Hillyard's NPI active?
- Yes — Robert Hillyard's NPI (1073607842) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.