Joseph Siegel, M.D.
NPI 1083935951 · Internal Medicine Physician · Oceanside, CA
Enrolled with Medicare as Order and Referring Only - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Siegel, M.D. is a Internal Medicine Physician provider in Oceanside, CA (NPI 1083935951).
Provider details
- NPI number
- 1083935951
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 65890 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-06-15
- Last updated
- 2025-01-17
- Certified
- 2025-01-15
Frequently asked questions
- What is Joseph Siegel's NPI number?
- Joseph Siegel's National Provider Identifier (NPI) is 1083935951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Siegel's specialty?
- Joseph Siegel is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Siegel located?
- Joseph Siegel's practice location on file with NPPES is 200 Mercy Circle, Oceanside, CA 92055.
- What is Joseph Siegel's phone number?
- The practice phone number listed in the NPPES registry for Joseph Siegel is (424) 421-4234.
- Does Joseph Siegel accept Medicare?
- Joseph Siegel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Siegel's NPI active?
- Yes — Joseph Siegel's NPI (1083935951) is active in the NPPES registry as of the last update on 2025-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.