Justin A. Fu, M.D.
Internal Medicine Physician · San Bernardino, CA
Justin A. Fu, M.D. is an internal medicine physician with a practice address in San Bernardino, California, and NPI 1447447818, issued on Oct 1, 2007. Check the license (California A96100, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Justin A. Fu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A96100 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2101 N Waterman Ave, San Bernardino, CA 92404
- Phone
- (909) 881-4520
- Enumerated
- Oct 1, 2007
- Record last updated
- Mar 6, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081003000675); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2101 N Waterman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Justin A. Fu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
133 Medicare Part D claims for 41 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $14.85
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Inpatient Specialists OF California PCSan Bernardino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin A. Fu among 17,696 internal medicine physician records in California
Justin A. Fu, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · median 2004 among the 11,065 with a school on file
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 internal medicine physician records list a practice address in San Bernardino
They are 58 of the 5,645 NPPES records with a practice address in San Bernardino, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Bernardino → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shuang Bai, M.D.San Bernardino, CA 924041154346799
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- Ronald Burton, MDSan Bernardino, CA 924041225008006
- Peter Csapoczi, MDSan Bernardino, CA 924041841357118
- Magdi Elsaadi, MDSan Bernardino, CA 924041902876683
- Ahamed Jiffry, MDSan Bernardino, CA 924041295848679
- Tony Kastoon, M.D.San Bernardino, CA 924041184636235
- Ernest Levister, MDSan Bernardino, CA 924041962577080
Common questions
What is Justin A. Fu, M.D.'s NPI number?
Justin A. Fu, M.D.'s National Provider Identifier (NPI) is 1447447818, issued on Oct 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Justin A. Fu, M.D. located?
The NPPES record lists a practice address at 2101 N Waterman Ave, San Bernardino, CA, 92404. Phone: (909) 881-4520. Providers update this record themselves, so call before visiting.
How can I verify Justin A. Fu, M.D.'s license?
NPPES lists California license number A96100, 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 Justin A. Fu, M.D. prescribe under Medicare Part D?
In 2024, Justin A. Fu, M.D. had 133 Medicare Part D claims for 41 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.