NPPES file of Aug 9, 2026

Justin Lam, D.O

Psychiatry Physician · Park Ridge, IL

Justin Lam, D.O is a psychiatry physician with a practice address in Park Ridge, Illinois, and NPI 1265894786, issued on Mar 23, 2016. Check the license (Illinois 125.068859, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265894786
Name
Justin Lam
Credential
D.O
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
125.068859 IL
Self-reported in NPPES; status is on the state search
Practice location
1875 W Dempster St, Park Ridge, IL 60068
Phone
(847) 795-5865
Enumerated
Mar 23, 2016
Record last updated
Jun 20, 2016 (not updated in 10 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1875 W Dempster St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joseph AdamsCardiovascular Disease Physician1073179594
  2. Heidi Barnett, PT, DPTSports Physical Therapist1497076095
  3. Chelsea Curry, MDPsychiatry Physician1841721925
  4. Matthew Filippo, DOPsychiatry Physician1780078337
  5. Lori Hamamoto, DPTPhysical Therapist1679886865
  6. Sarah HuttonPsychiatry Physician1194091009

Verify Justin Lam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 125.068859
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

59% fewer Medicare Part D claims than the average psychiatry physician in 2024

406 Medicare Part D claims for 55 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Justin Lam406
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate41 claims
  2. Lamotrigine36 claims
  3. Trazodone Hcl34 claims
  4. Duloxetine Hcl31 claims
  5. Venlafaxine Hcl Er30 claims
  6. Bupropion Xl29 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.

Industry payments in 2024: $878.33

38 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Justin Lam$878.33
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Justin Lam among 2,147 psychiatry physician records in Illinois

Justin Lam, D.O is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.

  • NPI issued2016 · 70% of these records are older, 27% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 41% of these records are
  • Record last updated2016 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 psychiatry physician records list a practice address in Park Ridge

They are 48 of the 2,577 NPPES records with a practice address in Park Ridge, and 2,147 psychiatry physician records in Illinois.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Daniel Anzia, M.D.Park Ridge, IL 600681972613222
  2. Susan Bank, MDRark Ridge, IL 600681578696332
  3. Marla Hartzen, MDPark Ridge, IL 600681356352447
  4. Ok Hong, MDPark Ridge, IL 600681497711873
  5. Charles Kaegi, MDPark Ridge, IL 600681528058567
  6. Warren Kammerer, MDPark Ridge, IL 600681134236565
  7. Dickie Kay, M.D.Park Ridge, IL 600681497846042
  8. Donald Koziol, M.D.Park Ridge, IL 600681548392301

Common questions

What is Justin Lam, D.O's NPI number?

Justin Lam, D.O's National Provider Identifier (NPI) is 1265894786, issued on Mar 23, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Justin Lam, D.O located?

The NPPES record lists a practice address at 1875 W Dempster St, Park Ridge, IL, 60068. Phone: (847) 795-5865. Providers update this record themselves, so call before visiting.

How can I verify Justin Lam, D.O's license?

NPPES lists Illinois license number 125.068859, as entered by the provider. 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 Justin Lam, D.O prescribe under Medicare Part D?

In 2024, Justin Lam, D.O had 406 Medicare Part D claims for 55 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.