Stephen L. Tam, MD
Internal Medicine Physician · Las Vegas, NV
Stephen L. Tam, MD is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1689738478, issued on Dec 19, 2006. Check the license (Nevada 12069, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Stephen L. Tam
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 12069 NV
Self-reported in NPPES; status is on the state search - Practice location
- 5380 S Rainbow, Las Vegas, NV 89118
- Phone
- (702) 838-3889
- Enumerated
- Dec 19, 2006
- Record last updated
- Dec 13, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (702) 838-3890
- Medicare enrollment
- Enrolled (PECOS I20070314000538); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,229 in Nevada → Look up another NPI →
Verify Stephen L. Tam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 12069Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average internal medicine physician in 2024
442 Medicare Part D claims for 50 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Lisinopril31 claims
- Albuterol Sulfate Hfa30 claims
- Gabapentin27 claims
- Atorvastatin Calcium19 claims
- Furosemide14 claims
- Hydrocodone-Acetaminophen14 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: $3,400.23
20 payments; by number, the most common kind was food and beverage; the largest payer was ModernaTX, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Mind Power Behavioral Services LLCLas Vegas, NV
- Vegas Valley Primary CareLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen L. Tam among 1,229 internal medicine physician records in Nevada
Stephen L. Tam, MD is one of 1,229 internal medicine physician records with a practice address in Nevada. 82% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2001 · median 2006 among the 772 with a school on file
- Record last updated2007 · 43% 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 Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
716 internal medicine physician records list a practice address in Las Vegas
They are 716 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,229 internal medicine physician records in Nevada.
All 1,229 in Nevada → Every provider in Las Vegas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lawrence Allen, MDLas Vegas, NV 891181174596142
- Olivia Astor, MDLas Vegas, NV 891181275160400
- Constantine George, MDLas Vegas, NV 891181164429858
- Jeffrey Joe, M.D.Las Vegas, NV 891181588770598
- Kaveh Kashani, D.O.Las Vegas, NV 891181235343211
- David Kim, MDLas Vegas, NV 891181396705661
- Janie Kwak-Tran, M.D.Las Vegas, NV 891181497847438
- Huy Ly, MDLas Vegas, NV 891181679547525
Common questions
What is Stephen L. Tam, MD's NPI number?
Stephen L. Tam, MD's National Provider Identifier (NPI) is 1689738478, issued on Dec 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen L. Tam, MD located?
The NPPES record lists a practice address at 5380 S Rainbow, Las Vegas, NV, 89118. Phone: (702) 838-3889. Providers update this record themselves, so call before visiting.
How can I verify Stephen L. Tam, MD's license?
NPPES lists Nevada license number 12069, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen L. Tam, MD prescribe under Medicare Part D?
In 2024, Stephen L. Tam, MD had 442 Medicare Part D claims for 50 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.