Si Tien Lam, DO
Family Medicine Physician · Feasterville Trevose, PA
Si Tien Lam, DO is a family medicine physician with a practice address in Feasterville Trevose, Pennsylvania, and NPI 1992192744, issued on Apr 20, 2015. Check the license (Pennsylvania OS018519, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Si Tien Lam
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS018519 PA
Self-reported in NPPES; status is on the state search - Practice location
- 23 Bustleton Pike Ste 200, Feasterville Trevose, PA 19053
- Phone
- (215) 464-0770
- Enumerated
- Apr 20, 2015
- Record last updated
- Jul 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (267) 579-0720
- Medicare enrollment
- Enrolled (PECOS I20180628000434); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 23 Bustleton Pike Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara Bix, MDInternal Medicine Physician1194749630
- Jaclyn Timoney, CRNPFamily Nurse Practitioner1912372947
Verify Si Tien Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS018519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average family medicine physician in 2024
3,387 Medicare Part D claims for 357 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium277 claims
- Losartan Potassium136 claims
- Levothyroxine Sodium135 claims
- Metformin Hcl128 claims
- Fluticasone Propionate93 claims
- Amlodipine Besylate86 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: $2,494.72
31 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- HR Physician ServicesFeasterville Trevose, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Si Tien Lam among 7,483 family medicine physician records in Pennsylvania
Si Tien Lam, DO is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2015 · median 2005 among the 4,529 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 family medicine physician records list a practice address in Feasterville Trevose
They are 16 of the 256 NPPES records with a practice address in Feasterville Trevose, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Feasterville Trevose → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thomas Duffield, M.D.Feasterville, PA 190531548207699
- John Junod, M.D.Feasterville Trevose, PA 190531205839339
- Gilbert Kasirsky, D.O.Feasterville Trevose, PA 190531609826429
- Douglas Kimmel, D.O.Feasterville Trevose, PA 190531891780631
- Alberto Larrieu, MDFeasterville Trevose, PA 190531447209614
- John McDonald, D.O.Feasterville Trevose, PA 190531427021872
- Adam Mikulski, D.O.Trevose, PA 190531437129574
- Susan Pak-Lee, DOFeasterville, PA 190531093711574
Common questions
What is Si Tien Lam, DO's NPI number?
Si Tien Lam, DO's National Provider Identifier (NPI) is 1992192744, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Si Tien Lam, DO located?
The NPPES record lists a practice address at 23 Bustleton Pike Ste 200, Feasterville Trevose, PA, 19053. Phone: (215) 464-0770. Providers update this record themselves, so call before visiting.
How can I verify Si Tien Lam, DO's license?
NPPES lists Pennsylvania license number OS018519, 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 Si Tien Lam, DO prescribe under Medicare Part D?
In 2024, Si Tien Lam, DO had 3,387 Medicare Part D claims for 357 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.