Eric Brondfield, MD
Internal Medicine Physician · Union City, CA
Eric Brondfield, MD is an internal medicine physician with a practice address in Union City, California, and NPI 1033297882, issued on Nov 1, 2006. Check the license (California G21028, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Brondfield
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G21028 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3553 Whipple Road, Union City, CA 94587
- Phone
- (510) 784-4000
- Enumerated
- Nov 1, 2006
- Entity
- Type 1 · individual
Also registered at 3553 Whipple Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eric Brondfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G21028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
21 Medicare Part D claims for 16 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% of claims.
Most prescribed
- Adacel Tdap15 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.
44 internal medicine physician records list a Union City practice address
They are 44 of the 1,006 NPPES records with a Union City practice address, and 20,403 internal medicine physician records in California.
All 44 in Union City → All 20,403 in California → Every provider in Union City →
Other internal medicine physician records in California
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- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Eric Brondfield, MD's NPI number?
Eric Brondfield, MD's National Provider Identifier (NPI) is 1033297882, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric Brondfield, MD located?
The NPPES record lists a practice address at 3553 Whipple Road, Union City, CA, 94587. Phone: (510) 784-4000. Providers update this record themselves, so call before visiting.
How can I verify Eric Brondfield, MD's license?
NPPES lists California license number G21028, 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 Eric Brondfield, MD prescribe under Medicare Part D?
In 2024, Eric Brondfield, MD had 21 Medicare Part D claims for 16 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.