Lance Siegel, MD
NPI 1629044185 · Ophthalmology Physician · Upland, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lance Siegel, MD is a Ophthalmology Physician provider in Upland, CA (NPI 1629044185).
Provider details
- NPI number
- 1629044185
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G72351 (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
- 2006-02-24
- Last updated
- 2015-02-17
Frequently asked questions
- What is Lance Siegel's NPI number?
- Lance Siegel's National Provider Identifier (NPI) is 1629044185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lance Siegel's specialty?
- Lance Siegel is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Lance Siegel located?
- Lance Siegel's practice location on file with NPPES is 1246 E Arrow Hwy, Upland, CA 91786-4955.
- What is Lance Siegel's phone number?
- The practice phone number listed in the NPPES registry for Lance Siegel is (909) 931-9675.
- Does Lance Siegel accept Medicare?
- Lance Siegel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lance Siegel's NPI active?
- Yes — Lance Siegel's NPI (1629044185) is active in the NPPES registry as of the last update on 2015-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.