Usman Siddiqui
Family Medicine Physician · Colton, CA
Usman Siddiqui is a family medicine physician with a practice address in Colton, California, and NPI 1457055097, issued on Mar 28, 2023. Check the license (California A206400, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Usman Siddiqui
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A206400 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1300 E Cooley Dr, Colton, CA 92324
- Phone
- (909) 370-4100
- Enumerated
- Mar 28, 2023
- Record last updated
- Jul 2, 2026
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1300 E Cooley Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Contreras, FNPFamily Nurse Practitioner1871895508
- Calvin Duong, M.D.Internal Medicine Physician1184646119
- Alkevin GacuyaFamily Nurse Practitioner1972204592
- Glen Gaerte, O.D.Optometrist1003855172
- Sarah Gomez, MDFamily Medicine Physician1760904924
Verify Usman Siddiqui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A206400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
180 Medicare Part D claims for 69 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Usman Siddiqui among 17,133 family medicine physician records in California
Usman Siddiqui is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 97% of them.
- NPI issued2023 · 97% of these records are older, 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
76 family medicine physician records list a practice address in Colton
They are 76 of the 2,459 NPPES records with a practice address in Colton, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Colton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ruben Avagimov, MDColton, CA 923241558376947
- Luis Chaname, D.O.Colton, CA 923241992712830
- Rosa Cortes, M.D.Colton, CA 923241154338010
- Emily Ebert, M.D., M.P.H.Colton, CA 923241730194127
- James Evans, M.D.Colton, CA 923241104858059
- Pooja Gupta, DOColton, CA 923241497762355
- Edward Keiderling, MDColton, CA 923241457366841
- Kuang-Chih Lo, D.O.Colton, CA 923241689617904
Common questions
What is Usman Siddiqui's NPI number?
Usman Siddiqui's National Provider Identifier (NPI) is 1457055097, issued on Mar 28, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Usman Siddiqui located?
The NPPES record lists a practice address at 1300 E Cooley Dr, Colton, CA, 92324. Phone: (909) 370-4100. Providers update this record themselves, so call before visiting.
How can I verify Usman Siddiqui's license?
NPPES lists California license number A206400, 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.
How much does Usman Siddiqui prescribe under Medicare Part D?
In 2024, Usman Siddiqui had 180 Medicare Part D claims for 69 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.