Andrew O Schreiber M D Inc
NPI 1598069809 · Neurological Surgery Physician · Santa Ana, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew O Schreiber M D Inc is a Neurological Surgery Physician organization in Santa Ana, CA (NPI 1598069809).
Provider details
- NPI number
- 1598069809
- Entity type
- Organization
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gretchen Bergquist, Office Manager(714) 813-4464
- License
- G57315 (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
15 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
- 2010-12-29
- Last updated
- 2023-09-06
- Certified
- 2023-09-06
Frequently asked questions
- What is Andrew O Schreiber M D Inc's NPI number?
- Andrew O Schreiber M D Inc's National Provider Identifier (NPI) is 1598069809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Andrew O Schreiber M D Inc?
- Andrew O Schreiber M D Inc is classified in the NPPES registry as Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew O Schreiber M D Inc located?
- Andrew O Schreiber M D Inc's practice location on file with NPPES is 1535 E 17th St Ste 101, Santa Ana, CA 92705-8519.
- What is Andrew O Schreiber M D Inc's phone number?
- The practice phone number listed in the NPPES registry for Andrew O Schreiber M D Inc is (949) 333-1586.
- Does Andrew O Schreiber M D Inc accept Medicare?
- Andrew O Schreiber M D Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Andrew O Schreiber M D Inc?
- The authorized official listed on Andrew O Schreiber M D Inc's NPPES record is Gretchen Bergquist, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Andrew O Schreiber M D Inc's NPI active?
- Yes — Andrew O Schreiber M D Inc's NPI (1598069809) is active in the NPPES registry as of the last update on 2023-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.