Timothy Lam
Internal Medicine Physician · West Reading, PA
Timothy Lam is an internal medicine physician with a practice address in West Reading, Pennsylvania, and NPI 1427620087, issued on Jul 13, 2021. Check the license (Pennsylvania MD486399, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Timothy Lam
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD486399 PA
MT223897 PA
Self-reported in NPPES; status is on the state search - Practice location
- 420 S 5TH Ave, West Reading, PA 19611
- Phone
- (484) 628-5455
- Enumerated
- Jul 13, 2021
- Record last updated
- Aug 2, 2024
- Medicare enrollment
- Enrolled (PECOS I20240816000528); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 420 S 5TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paul Adeyemi, DPMFoot & Ankle Surgery Podiatrist1295621795
Verify Timothy Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD486399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
269 Medicare Part D claims for 101 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Amlodipine Besylate21 claims
- Atorvastatin Calcium18 claims
- Losartan Potassium15 claims
- Omeprazole13 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.
Bills Medicare through one group practice
- Tower Health Medical GroupWest Reading, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Lam among 7,300 internal medicine physician records in Pennsylvania
Timothy Lam is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.
- NPI issued2021 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2008 among the 4,208 with a school on file
- Record last updated2024 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
111 internal medicine physician records list a practice address in West Reading
They are 111 of the 1,123 NPPES records with a practice address in West Reading, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in West Reading → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Walter Bohnenblust, M.D.West Reading, PA 196111053316968
- Craig Derr, M.D.W Reading, PA 196111912902578
- Anthony Donato, M.D.West Reading, PA 196111306849815
- Deepam Gokal, M.D.Reading, PA 196111902861842
- Ian Goonewardene, M.D.West Reading, PA 196111679522676
- Patrick Hart, M.D.West Reading, PA 196111245237585
- George Jenckes, M.D.West Reading, PA 196111437115615
- Sheryl Jones-Henderson, M.D.West Reading, PA 196111386605020
Common questions
What is Timothy Lam's NPI number?
Timothy Lam's National Provider Identifier (NPI) is 1427620087, issued on Jul 13, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Lam located?
The NPPES record lists a practice address at 420 S 5TH Ave, West Reading, PA, 19611. Phone: (484) 628-5455. Providers update this record themselves, so call before visiting.
How can I verify Timothy Lam's license?
NPPES lists Pennsylvania license number MD486399, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Lam prescribe under Medicare Part D?
In 2024, Timothy Lam had 269 Medicare Part D claims for 101 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.