Lance Mitchell Siegel, MD
Ophthalmology Physician · Upland, CA
Lance Mitchell Siegel, MD is an ophthalmology physician with a practice address in Upland, California, and NPI 1629044185, issued on Feb 24, 2006. Check the license (California G72351, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Lance Mitchell Siegel
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G72351 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1246 E Arrow Hwy, Upland, CA 91786
- Phone
- (909) 931-9675
- Enumerated
- Feb 24, 2006
- Record last updated
- Feb 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (909) 931-3239
- Medicaid ID
- 00G723510 CA
- Medicare enrollment
- Enrolled (PECOS I20040217000399); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Lance Mitchell Siegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G72351Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Lance Mitchell Siegel among 2,899 ophthalmology physician records in California
Lance Mitchell Siegel, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1990 · median 2001 among the 1,907 with a school on file
- Record last updated2015 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,899 in California → Every provider in Upland → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Pamela Bekendam, M.D.Upland, CA 917861225135288
- Peter Bekendam, MDUpland, CA 917861740468263
- Siddharth Bhargava, MDUpland, CA 917861043849078
- Andrea Ching, M.D.Upland, CA 917861669495214
- Kweku Grant-Acquah, M.D.Upland, CA 917861831327626
- Robert Gunzenhauser, MDUpland, CA 917861457988065
- Julie King, M.D.Upland, CA 917861518980069
- Richmond Roeske, M.D.Upland, CA 917861720009913
Common questions
What is Lance Mitchell Siegel, MD's NPI number?
Lance Mitchell Siegel, MD's National Provider Identifier (NPI) is 1629044185, issued on Feb 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lance Mitchell Siegel, MD located?
The NPPES record lists a practice address at 1246 E Arrow Hwy, Upland, CA, 91786. Phone: (909) 931-9675. Providers update this record themselves, so call before visiting.
How can I verify Lance Mitchell Siegel, MD's license?
NPPES lists California license number G72351, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.