Ronald Lam, M.D.
Anatomic Pathology & Clinical Pathology Physician · Elmhurst, IL
Ronald Lam, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Elmhurst, Illinois, and NPI 1538111232, issued on May 17, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ronald Lam
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- Practice location
- 200 Berteau Ave, Elmhurst, IL 60126
- Phone
- (630) 834-0610
- Enumerated
- May 17, 2006
- Record last updated
- Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 0360634934 IL
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 789 in Illinois → Look up another NPI →
Also registered at 200 Berteau Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ronald Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average anatomic pathology & clinical pathology physician in 2024
63 Medicare Part D claims, against an average of 192 among the 401 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin15 claims
- Celecoxib12 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.
Ronald Lam among 789 anatomic pathology & clinical pathology physician records in Illinois
Ronald Lam, M.D. is one of 789 anatomic pathology & clinical pathology physician records with a practice address in Illinois. 55% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 58% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Illinois
There are 789 anatomic pathology & clinical pathology physician records in Illinois.
All 789 in Illinois → Every provider in Elmhurst → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Rima Bakhos, M.D.Elmhurst, IL 601261508819095
- Mary Bird, M.D.Elmhurst, IL 601261669489464
- Alvaro Candel, M.D.Elmhurst, IL 601261528019189
- Keith Izban, M.D.Elmhurst, IL 601261548211139
- Fayyaz KhananiElmhurst, IL 601261952592503
- Ezequiel Lopez-Presas, M.D.Elmhurst, IL 601261902001787
- Amar AgadiElgin, IL 601231407015415
- Catherine Britton Kuzel, M.D.Elgin, IL 601231700918406
Common questions
What is Ronald Lam, M.D.'s NPI number?
Ronald Lam, M.D.'s National Provider Identifier (NPI) is 1538111232, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Lam, M.D. located?
The NPPES record lists a practice address at 200 Berteau Ave, Elmhurst, IL, 60126. Phone: (630) 834-0610. Providers update this record themselves, so call before visiting.
How can I verify Ronald Lam, M.D.'s license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ronald Lam, M.D. prescribe under Medicare Part D?
In 2024, Ronald Lam, M.D. had 63 Medicare Part D claims; the average among anatomic pathology & clinical pathology physician prescribers was 192. 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.