Joseph J. Lum, MD
Diagnostic Radiology Physician · Sacramento, CA
Joseph J. Lum, MD is a diagnostic radiology physician with a practice address in Sacramento, California, and NPI 1033186374, issued on Mar 7, 2006. Check the license (California A93920, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph J. Lum
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A93920 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4860 Y St Ste 3100, Sacramento, CA 95817
- Phone
- (916) 734-3606
- Enumerated
- Mar 7, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091106000503); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 4860 Y St Ste 3100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Brown, M.D.Diagnostic Radiology Physician1841636321
- Arjun Byju, MDStudent in an Organized Health Care Education/Training Program1891497723
- Gloria CastanedaStudent in an Organized Health Care Education/Training Program1821882911
Verify Joseph J. Lum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A93920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Permanente Medical Group IncFresno, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph J. Lum among 4,500 diagnostic radiology physician records in California
Joseph J. Lum, MD is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2002 · median 2004 among the 3,130 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Sacramento → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Erik Abrames, M.D.Sacramento, CA 958171558342337
- Carol Beatty, M.D.Sacramento, CA 958171043297807
- Jasjeet Bindra, M.D.Sacramento, CA 958171962488148
- Dillon Chen, MDSacramento, CA 958171740277060
- Brian Dahlin, M.D.Sacramento, CA 958171861478042
- Raymond Dougherty, M.D.Sacramento, CA 958171699751487
- Arthur Dublin, M.D.Sacramento, CA 958171669458477
- Eva Escobedo, M.D.Sacramento, CA 958171619955648
Common questions
What is Joseph J. Lum, MD's NPI number?
Joseph J. Lum, MD's National Provider Identifier (NPI) is 1033186374, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph J. Lum, MD located?
The NPPES record lists a practice address at 4860 Y St Ste 3100, Sacramento, CA, 95817. Phone: (916) 734-3606. Providers update this record themselves, so call before visiting.
How can I verify Joseph J. Lum, MD's license?
NPPES lists California license number A93920, 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.
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.