Timothy Lan, M.D.
Family Medicine Physician · Clackamas, OR
Timothy Lan, M.D. is a family medicine physician with a practice address in Clackamas, Oregon, and NPI 1972745404, issued on Mar 30, 2009. Check the license (Oregon 158967, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Timothy Lan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 158967 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9800 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (503) 652-2880
- Enumerated
- Mar 30, 2009
- Record last updated
- Aug 27, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161130002595); accepts Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 9800 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline AdlawanFamily Medicine Physician1598708125
- Tatyana Aleksandrova, MDInternal Medicine Physician1740719103
- Jun Ying Ao, PSY.D.Counselor1548396450
- Ashley Austin, M.D.Family Medicine Physician1285097543
- Jaspreet Bains, PHARM DPharmacist1356591184
- Kristina Barley, MDFamily Medicine Physician1891145462
Verify Timothy Lan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 158967Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
459 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 4% of claims.
Most prescribed
- Cephalexin97 claims
- Prednisone77 claims
- Amoxicillin33 claims
- Doxycycline Monohydrate22 claims
- Amoxicillin-Clavulanate Potass17 claims
- Ciprofloxacin Hcl17 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
- Ihc Health Services IncTaylorsville, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Lan among 2,847 family medicine physician records in Oregon
Timothy Lan, M.D. is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 59% of them.
- NPI issued2009 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2008 · median 2009 among the 1,671 with a school on file
- Record last updated2012 · 57% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
85 family medicine physician records list a practice address in Clackamas
They are 85 of the 2,098 NPPES records with a practice address in Clackamas, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Clackamas → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Anderson, MDClackamas, OR 970151992744056
- Daniel Constien, M.D.Clackamas, OR 970151447204086
- Barry Davis, DOClackamas, OR 970151356324842
- Patricia Gallegos, DOClackamas, OR 970151285617779
- Moses Gallegos, DOClackamas, OR 970151184607673
- Thomas Hickerson, MDClackamas, OR 970151700840675
- Raymond Lee, DOClackamas, OR 970151578559951
- Mith Leng, M.D.Clackamas, OR 970151457306458
Common questions
What is Timothy Lan, M.D.'s NPI number?
Timothy Lan, M.D.'s National Provider Identifier (NPI) is 1972745404, issued on Mar 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Lan, M.D. located?
The NPPES record lists a practice address at 9800 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 652-2880. Providers update this record themselves, so call before visiting.
How can I verify Timothy Lan, M.D.'s license?
NPPES lists Oregon license number 158967, 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 Timothy Lan, M.D. prescribe under Medicare Part D?
In 2024, Timothy Lan, M.D. had 459 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.