NPPES file of Aug 9, 2026

Jennifer Lam, DO

Internal Medicine Physician · Glenside, PA

Jennifer Lam, DO is an internal medicine physician with a practice address in Glenside, Pennsylvania, and NPI 1639871585, issued on Mar 21, 2023. Check the license (Pennsylvania OS025501, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1639871585
Name
Jennifer Lam
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OS025501 PA
Self-reported in NPPES; status is on the state search
Practice location
8200 Flourtown Ave, Glenside, PA 19038
Phone
(215) 233-1555
Enumerated
Mar 21, 2023
Record last updated
Feb 17, 2026
Medicare enrollment
Enrolled (PECOS I20260228000607); may accept Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Jennifer Lam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS025501
    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 Pennsylvania license search

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97% fewer Medicare Part D claims than the average internal medicine physician in 2024

88 Medicare Part D claims for 22 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Jennifer Lam88
  2. Specialty average3,176

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.

Jennifer Lam among 7,300 internal medicine physician records in Pennsylvania

Jennifer Lam, DO 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 2023, is newer than 89% of them.

  • NPI issued2023 · 89% of these records are older, 7% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2023 · median 2008 among the 4,208 with a school on file
  • Record last updated2026 · 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).

Internal Medicine Physician providers in Pennsylvania

There are 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Simeon Bardin, MDWyndmoor, PA 190381508851874
  2. Sahani Jayatilaka, DOWyndmoor, PA 190381518526078
  3. Richard Kagen, MDWyndmoor, PA 190381730174996
  4. Daniel Mines, MDWyndmoor, PA 190381336458686
  5. Daniel Peterson, MDWyndmoor, PA 190381902883846
  6. Anthony Roselli, M.D.Wyndmoor, PA 190381316174600
  7. Neil Sand, DOWyndmoor, PA 190381336105782
  8. Frances Sirico-Kelly, D.O.Wyndmoor, PA 190381477547610

Common questions

What is Jennifer Lam, DO's NPI number?

Jennifer Lam, DO's National Provider Identifier (NPI) is 1639871585, issued on Mar 21, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Lam, DO located?

The NPPES record lists a practice address at 8200 Flourtown Ave, Glenside, PA, 19038. Phone: (215) 233-1555. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Lam, DO's license?

NPPES lists Pennsylvania license number OS025501, 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 Jennifer Lam, DO prescribe under Medicare Part D?

In 2024, Jennifer Lam, DO had 88 Medicare Part D claims for 22 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.