Alicia Meridith Ahn, MD
Internal Medicine Physician · Tualatin, OR
Alicia Meridith Ahn, MD is an internal medicine physician with a practice address in Tualatin, Oregon, and NPI 1811109283, issued on May 5, 2007. Check the license (Oregon MD27759, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alicia Meridith Ahn
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD27759 OR
Self-reported in NPPES; status is on the state search - Practice location
- 19185 SW 90TH Ave, Tualatin, OR 97062
- Phone
- (503) 885-7300
- Enumerated
- May 5, 2007
- Record last updated
- Jun 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 19185 SW 90TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alicia Meridith Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD27759Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
207 Medicare Part D claims for 100 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Metoprolol Tartrate13 claims
- Potassium Chloride12 claims
- Anastrozole11 claims
- Lisinopril11 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.
Alicia Meridith Ahn among 2,116 internal medicine physician records in Oregon
Alicia Meridith Ahn, 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2008 · 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).
44 internal medicine physician records list a practice address in Tualatin
They are 44 of the 863 NPPES records with a practice address in Tualatin, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Tualatin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tammi Boston, MDTualatin, OR 970621033184593
- Jaymee Delaney, MDTualatin, OR 970621003864687
- John Forsythe, MDTualatin, OR 970621134188386
- Jeffrey Fullman, MDTualatin, OR 970621932178951
- Gwen Grewe, M.D.Tualatin, OR 970621326014234
- Tana Haynes, M.D.Tualatin, OR 970621639160369
- Mark McKinstry, MDTualatin, OR 970621073582383
- Suzanne Migchelbrink, MDTualatin, OR 970621174592190
Common questions
What is Alicia Meridith Ahn, MD's NPI number?
Alicia Meridith Ahn, MD's National Provider Identifier (NPI) is 1811109283, issued on May 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alicia Meridith Ahn, MD located?
The NPPES record lists a practice address at 19185 SW 90TH Ave, Tualatin, OR, 97062. Phone: (503) 885-7300. Providers update this record themselves, so call before visiting.
How can I verify Alicia Meridith Ahn, MD's license?
NPPES lists Oregon license number MD27759, 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 Alicia Meridith Ahn, MD prescribe under Medicare Part D?
In 2024, Alicia Meridith Ahn, MD had 207 Medicare Part D claims for 100 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.