Sonaina Imtiaz, MD
Endocrinology, Diabetes & Metabolism Physician · Fullerton, CA
Sonaina Imtiaz, MD is an endocrinology, diabetes & metabolism physician with a practice address in Fullerton, California, and NPI 1376959510, issued on Jul 9, 2014. Check the license (California C192981, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sonaina Imtiaz
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- C192981 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1501 W Commonwealth Ave, Fullerton, CA 92833
- Phone
- (714) 410-3100
- Enumerated
- Jul 9, 2014
- Record last updated
- Feb 23, 2026
- Medicare enrollment
- Enrolled (PECOS I20240315000418); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 1501 W Commonwealth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jenny MoAcute Care Nurse Practitioner1679242960
- Ewelina Szymanowicz, NPFamily Nurse Practitioner1740674415
Verify Sonaina Imtiaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C192981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,613 Medicare Part D claims for 290 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Lantus Solostar145 claims
- Ozempic135 claims
- Metformin Hcl128 claims
- Glipizide114 claims
- Nano 2nd Gen Pen Needle80 claims
- Jardiance77 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.
Bills Medicare through one group practice
- Healthcare Partners Affiliates Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonaina Imtiaz among 1,131 endocrinology, diabetes & metabolism physician records in California
Sonaina Imtiaz, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 16% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2003 among the 779 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Fullerton → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Thomas Dougherty, M.D.Fullerton, CA 928321699712232
- Serhat Aytug, M.D.Fullerton, CA 928351194707471
- Jeffrey Bodwin, MDFullerton, CA 928351932195476
- John Gilbert, M.D.Fullerton, CA 928351588650667
- Maximiliano Hyon, D.O.Fullerton, CA 928351942626767
- Michael Kuo, MDFullerton, CA 928351033593744
- Jason Ling, MDFullerton, CA 928351154664597
- Shilpa Mehta, MDFullerton, CA 928351548422991
Common questions
What is Sonaina Imtiaz, MD's NPI number?
Sonaina Imtiaz, MD's National Provider Identifier (NPI) is 1376959510, issued on Jul 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sonaina Imtiaz, MD located?
The NPPES record lists a practice address at 1501 W Commonwealth Ave, Fullerton, CA, 92833. Phone: (714) 410-3100. Providers update this record themselves, so call before visiting.
How can I verify Sonaina Imtiaz, MD's license?
NPPES lists California license number C192981, 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 Sonaina Imtiaz, MD prescribe under Medicare Part D?
In 2024, Sonaina Imtiaz, MD had 1,613 Medicare Part D claims for 290 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.