Alfonso Brigham, M.D.
Internal Medicine Physician · Hawthorne, CA
Alfonso Brigham, M.D. is an internal medicine physician with a practice address in Hawthorne, California, and NPI 1902858343, issued on May 16, 2006. Check the license (California G48631, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alfonso Brigham
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G48631 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11633 Hawthorne Blvd, Hawthorne, CA 90250
- Phone
- (310) 792-4450
- Enumerated
- May 16, 2006
- Entity
- Type 1 · individual
Also registered at 11633 Hawthorne Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alfonso Brigham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G48631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
90% more Medicare Part D claims than the average internal medicine physician in 2024
5,280 Medicare Part D claims for 497 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium499 claims
- Amlodipine Besylate287 claims
- Losartan Potassium173 claims
- Metformin Hcl159 claims
- Lisinopril130 claims
- Tamsulosin Hcl118 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.
One hospital or facility affiliation
- Providence Medical InstituteLaguna Niguel, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
16 internal medicine physician records list a Hawthorne practice address
They are 16 of the 818 NPPES records with a Hawthorne practice address, and 20,403 internal medicine physician records in California.
All 16 in Hawthorne → All 20,403 in California → Every provider in Hawthorne →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- 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 Alfonso Brigham, M.D.'s NPI number?
Alfonso Brigham, M.D.'s National Provider Identifier (NPI) is 1902858343, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alfonso Brigham, M.D. located?
The NPPES record lists a practice address at 11633 Hawthorne Blvd, Hawthorne, CA, 90250. Phone: (310) 792-4450. Providers update this record themselves, so call before visiting.
How can I verify Alfonso Brigham, M.D.'s license?
NPPES lists California license number G48631, 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 Alfonso Brigham, M.D. prescribe under Medicare Part D?
In 2024, Alfonso Brigham, M.D. had 5,280 Medicare Part D claims for 497 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.