Gerald Acheson Dunlap, MD
Internal Medicine Physician · Beaverton, OR
Gerald Acheson Dunlap, MD is an internal medicine physician with a practice address in Beaverton, Oregon, and NPI 1144497009, issued on May 9, 2008. Check the license (Oregon MD151063, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gerald Acheson Dunlap
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD151063 OR
LL17373 OR
Self-reported in NPPES; status is on the state search - Practice location
- 4855 SW Western Ave, Beaverton, OR 97005
- Phone
- (800) 813-2000
- Enumerated
- May 9, 2008
- Record last updated
- May 5, 2026
- Medicaid ID
- 500623081 OR
- Medicare enrollment
- Enrolled (PECOS I20100917000115); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2007
- 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 4855 SW Western Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jean Akin, PMHNPAdult Psychiatric/Mental Health Registered Nurse1316013857
- Amanda AndersenInternal Medicine Physician1033504410
- Carole Anderson, FNPFamily Nurse Practitioner1467561241
- Scott Anderson, ODOptometrist1689774218
- Tovi Anderson, M.D., PH.D.Family Medicine Physician1902225725
- Sarah Anderson Mills, EFDADental Assistant1154886877
Verify Gerald Acheson Dunlap in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD151063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% more Medicare Part D claims than the average internal medicine physician in 2024
5,728 Medicare Part D claims for 517 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 40 claims were for opioids.
Most prescribed
- Atorvastatin Calcium698 claims
- Lisinopril398 claims
- Losartan Potassium253 claims
- Amlodipine Besylate214 claims
- Gabapentin178 claims
- Levothyroxine Sodium172 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
- Kaiser Foundation Health Plan OF The NorthwestBeaverton, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gerald Acheson Dunlap among 2,116 internal medicine physician records in Oregon
Gerald Acheson Dunlap, 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
- Graduated2007 · median 2008 among the 1,232 with a school on file
- Record last updated2026 · 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).
46 internal medicine physician records list a practice address in Beaverton
They are 46 of the 3,604 NPPES records with a practice address in Beaverton, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Beaverton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Richard Bills, M.D.Beaverton, OR 970051750493235
- Vandana Bindal, M.D.Beaverton, OR 970051639113590
- Kelly Block, M.D.Beaverton, OR 970051396831913
- Page Dardis, M.D.Beaverton, OR 970051831296367
- Scott Dunlap, M.D.Beaverton, OR 970051568576510
- Sharon Kenny, M.D.Beaverton, OR 970051225124639
- Ramu Kotamarti, MDBeaverton, OR 970051982711172
- Wendy Mills Watson, MDBeaverton, OR 970051487780391
Common questions
What is Gerald Acheson Dunlap, MD's NPI number?
Gerald Acheson Dunlap, MD's National Provider Identifier (NPI) is 1144497009, issued on May 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Gerald Acheson Dunlap, MD located?
The NPPES record lists a practice address at 4855 SW Western Ave, Beaverton, OR, 97005. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Gerald Acheson Dunlap, MD's license?
NPPES lists Oregon license number MD151063, 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 Gerald Acheson Dunlap, MD prescribe under Medicare Part D?
In 2024, Gerald Acheson Dunlap, MD had 5,728 Medicare Part D claims for 517 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.