Louis Maximilian Dibernardo, MD
Family Medicine Physician · Upland, CA
Louis Maximilian Dibernardo, MD is a family medicine physician with a practice address in Upland, California, and NPI 1528045358, issued on Dec 22, 2005. Check the license (California A73815, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Louis Maximilian Dibernardo
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A73815 CA
Self-reported in NPPES; status is on the state search - Practice location
- 974 W Foothill Blvd, Upland, CA 91786
- Phone
- (909) 981-2273
- Enumerated
- Dec 22, 2005
- Record last updated
- Jun 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040216001314); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 974 W Foothill Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Morris Kokhab, M.D.Rheumatology Physician1245248681
- Jennifer Prina, FNP-CFamily Nurse Practitioner1124654454
- Nehal Tawansy, M.D.Family Medicine Physician1073687588
Verify Louis Maximilian Dibernardo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average family medicine physician in 2024
598 Medicare Part D claims for 307 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate60 claims
- Azithromycin49 claims
- Methylprednisolone47 claims
- Cephalexin41 claims
- Mupirocin39 claims
- Amoxicillin32 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
- Advanced Medical And Urgent Care CenterUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Louis Maximilian Dibernardo among 17,133 family medicine physician records in California
Louis Maximilian Dibernardo, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1999 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 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).
38 family medicine physician records list a practice address in Upland
They are 38 of the 1,846 NPPES records with a practice address in Upland, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Upland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Armour, D.OUpland, CA 917861366488215
- Louis Brenner, M.D.Upland, CA 917861003852815
- Bryan Chan, MDUpland, CA 917861417059957
- Warren Regh Gabrillo, M.D.Upland, CA 917861982689295
- Dwight Guan, MDUpland, CA 917861184644676
- Rick Hirsch, D.O.Upland, CA 917861497774954
- James Ho, MDUpland, CA 917861669440988
- Yin Lai, MDUpland, CA 917861659344943
Common questions
What is Louis Maximilian Dibernardo, MD's NPI number?
Louis Maximilian Dibernardo, MD's National Provider Identifier (NPI) is 1528045358, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Louis Maximilian Dibernardo, MD located?
The NPPES record lists a practice address at 974 W Foothill Blvd, Upland, CA, 91786. Phone: (909) 981-2273. Providers update this record themselves, so call before visiting.
How can I verify Louis Maximilian Dibernardo, MD's license?
NPPES lists California license number A73815, 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 Louis Maximilian Dibernardo, MD prescribe under Medicare Part D?
In 2024, Louis Maximilian Dibernardo, MD had 598 Medicare Part D claims for 307 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.