Ann G. Tseng, MD
Family Medicine Physician · Hillsboro, OR
Ann G. Tseng, MD is a family medicine physician with a practice address in Hillsboro, Oregon, and NPI 1063519833, issued on Sep 20, 2006. Check the license (Oregon MD26905, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ann G. Tseng
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD26905 OR
Self-reported in NPPES; status is on the state search - Practice location
- 10690 NE Cornell RD Ste 220, Hillsboro, OR 97124
- Phone
- (503) 848-5861
- Enumerated
- Sep 20, 2006
- Record last updated
- Sep 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 278340 OR
- Medicare enrollment
- Enrolled (PECOS I20061106000088); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 10690 NE Cornell RD Ste 220
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebekah Alder, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1982221081
- Christine Arthur, M.D.Psychiatry Physician1164529780
- Aberash Assefa, RN, MS, FNPNurse Practitioner1376730739
- Jan Sharone Bacani, RNRegistered Nurse1831790054
- Brooke Bachelor, DO, BSN, RNFamily Medicine Physician1649733999
- Emily BaldelliRegistered Nurse1932064631
Verify Ann G. Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD26905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average family medicine physician in 2024
1,286 Medicare Part D claims for 188 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium105 claims
- Amlodipine Besylate67 claims
- Omeprazole67 claims
- Metformin Hcl53 claims
- Gabapentin50 claims
- Rosuvastatin Calcium37 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
- Neighborhood Health CenterHillsboro, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann G. Tseng among 2,847 family medicine physician records in Oregon
Ann G. Tseng, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2003 · median 2009 among the 1,671 with a school on file
- Record last updated2021 · 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).
106 family medicine physician records list a practice address in Hillsboro
They are 106 of the 3,302 NPPES records with a practice address in Hillsboro, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Hillsboro → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Cade, MDHillsboro, OR 971241205835048
- Phyllis Gilmore, MDHillsboro, OR 971241528004462
- Michelle Hall, M.D.Hillsboro, OR 971241457337859
- Kim Heydon, MDHillsboro, OR 971241881649705
- Michael Hicken, M.D.Hillsboro, OR 971241033160411
- Carmen Kendall, MDHillsboro, OR 971241780639575
- John Kingman, MDHillsboro, OR 971241881633980
- Diane Loux, F.N.P.Hillsboro, OR 971241114953866
Common questions
What is Ann G. Tseng, MD's NPI number?
Ann G. Tseng, MD's National Provider Identifier (NPI) is 1063519833, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ann G. Tseng, MD located?
The NPPES record lists a practice address at 10690 NE Cornell RD Ste 220, Hillsboro, OR, 97124. Phone: (503) 848-5861. Providers update this record themselves, so call before visiting.
How can I verify Ann G. Tseng, MD's license?
NPPES lists Oregon license number MD26905, 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 Ann G. Tseng, MD prescribe under Medicare Part D?
In 2024, Ann G. Tseng, MD had 1,286 Medicare Part D claims for 188 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.