Regina Patricia Singson, MD
NPI 1609842863 · Anatomic Pathology & Clinical Pathology Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Regina Patricia Singson, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Thousand Oaks, CA (NPI 1609842863).
Provider details
- NPI number
- 1609842863
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- A55921 (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
20 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
- 2006-02-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Regina Patricia Singson's NPI number?
- Regina Patricia Singson's National Provider Identifier (NPI) is 1609842863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regina Patricia Singson's specialty?
- Regina Patricia Singson is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Regina Patricia Singson located?
- Regina Patricia Singson's practice location on file with NPPES is 215 W Janss Rd, Thousand Oaks, CA 91360.
- What is Regina Patricia Singson's phone number?
- The practice phone number listed in the NPPES registry for Regina Patricia Singson is (805) 373-8582.
- Does Regina Patricia Singson accept Medicare?
- Regina Patricia Singson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Regina Patricia Singson's NPI active?
- Yes — Regina Patricia Singson's NPI (1609842863) 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.