Summer R. Lam, MD
Internal Medicine Physician · Newberg, OR
Summer R. Lam, MD is an internal medicine physician with a practice address in Newberg, Oregon, and NPI 1922266709, issued on May 28, 2008. Check the license (Oregon MD28455, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Summer R. Lam
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD28455 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1003 Providence Dr, Newberg, OR 97132
- Phone
- (503) 537-5900
- Enumerated
- May 28, 2008
- Record last updated
- Nov 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090910000317); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 1003 Providence Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sorin Cadar, M.D.Family Medicine Physician1376854158
Verify Summer R. Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD28455Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,110 Medicare Part D claims for 270 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 54 claims were for opioids.
Most prescribed
- Atorvastatin Calcium157 claims
- Amlodipine Besylate87 claims
- Levothyroxine Sodium78 claims
- Lisinopril71 claims
- Omeprazole62 claims
- Rosuvastatin Calcium60 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: $17.40
1 payment: food and beverage; the largest payer was Ascensia Diabetes Care Us 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 one group practice
- James J Biemer JR MD, P.C.Portland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Summer R. Lam among 2,116 internal medicine physician records in Oregon
Summer R. Lam, MD is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2005 · median 2008 among the 1,232 with a school on file
- Record last updated2011 · 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 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Newberg
They are 23 of the 703 NPPES records with a practice address in Newberg, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Newberg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Matthew Becker, D.O.Newberg, OR 971321679817704
- Nina Bergquam, MDNewberg, OR 971321558301259
- Charles Campbell, DONewberg, OR 971321437592383
- Julien Chirouze, DONewberg, OR 971321407273543
- Matthew Fischer, M.D.Newberg, OR 971321811382922
- Nathaniel McCoy, M.D.Newberg, OR 971321689973182
- Hitomi Nakai, M.D,Newberg, OR 971321205031283
- Sarah Rahkola, MDNewberg, OR 971321700044583
Common questions
What is Summer R. Lam, MD's NPI number?
Summer R. Lam, MD's National Provider Identifier (NPI) is 1922266709, issued on May 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Summer R. Lam, MD located?
The NPPES record lists a practice address at 1003 Providence Dr, Newberg, OR, 97132. Phone: (503) 537-5900. Providers update this record themselves, so call before visiting.
How can I verify Summer R. Lam, MD's license?
NPPES lists Oregon license number MD28455, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Summer R. Lam, MD prescribe under Medicare Part D?
In 2024, Summer R. Lam, MD had 2,110 Medicare Part D claims for 270 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.