Wen Sun Lum, MD
Internal Medicine Physician · South Bend, IN
Wen Sun Lum, MD is an internal medicine physician with a practice address in South Bend, Indiana, and NPI 1497781124, issued on Jun 24, 2006. Check the license (Indiana 01068990A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Wen Sun Lum
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01068990A IN
Self-reported in NPPES; status is on the state search - Practice location
- 615 N Michigan St, South Bend, IN 46601
- Phone
- (574) 647-3050
- Enumerated
- Jun 24, 2006
- Record last updated
- May 1, 2023
- Medicaid ID
- 201005070 IN
- Medicare enrollment
- Enrolled (PECOS I20110118000561); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,109 in Indiana → Look up another NPI →
Also registered at 615 N Michigan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Blakesley, MDEmergency Medicine Physician1275614570
Verify Wen Sun Lum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01068990ACheck 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
- Beacon Medical Group IncSouth Bend, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wen Sun Lum among 2,109 internal medicine physician records in Indiana
Wen Sun Lum, MD is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2002 · median 2005 among the 1,448 with a school on file
- Record last updated2023 · 43% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 internal medicine physician records list a practice address in South Bend
They are 54 of the 3,178 NPPES records with a practice address in South Bend, and 2,109 internal medicine physician records in Indiana.
All 2,109 in Indiana → Every provider in South Bend → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sylvana Atallah, M.D.South Bend, IN 466011225235336
- Justin Chow, MDSouth Bend, IN 466011700899622
- Robert Einterz, MDSouth Bend, IN 466011992762652
- Celestina Iheanacho, MDSouth Bend, IN 466011619927530
- Mathew Kallookulangara, M.D.South Bend, IN 466011912998642
- Carolyn Klaus, M.D.South Bend, IN 466011811988561
- Monika Niemiec, MDSouth Bend, IN 466011063610327
- Sunday Osunnuga, MDSouth Bend, IN 466011710937388
Common questions
What is Wen Sun Lum, MD's NPI number?
Wen Sun Lum, MD's National Provider Identifier (NPI) is 1497781124, issued on Jun 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wen Sun Lum, MD located?
The NPPES record lists a practice address at 615 N Michigan St, South Bend, IN, 46601. Phone: (574) 647-3050. Providers update this record themselves, so call before visiting.
How can I verify Wen Sun Lum, MD's license?
NPPES lists Indiana license number 01068990A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. 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.