Richard L. Hsu, MD
Internal Medicine Physician · Portland, OR
Richard L. Hsu, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1174552491, issued on Jun 30, 2006. Check the license (Oregon MD20993, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Richard L. Hsu
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD20993 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1321 NE 99TH Ave Ste 100, Portland, OR 97220
- Phone
- (503) 215-4050
- Enumerated
- Jun 30, 2006
- Record last updated
- Feb 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 215-4055
- Medicare enrollment
- Enrolled (PECOS I20100429000088); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1995
- 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 1321 NE 99TH Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kimberly Ernest, PA-CPhysician Assistant1447592266
- Katherine Fritz, PA-CPhysician Assistant1386136158
Verify Richard L. Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD20993Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,377 Medicare Part D claims for 827 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 973 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,099 claims
- Amlodipine Besylate687 claims
- Losartan Potassium487 claims
- Hydrocodone-Acetaminophen458 claims
- Metoprolol Succinate454 claims
- Lisinopril378 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
- Providence Health And Services OregonPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard L. Hsu among 2,116 internal medicine physician records in Oregon
Richard L. Hsu, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1995 · median 2008 among the 1,232 with a school on file
- Record last updated2021 · 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).
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Soraya Abbassian, M.D.Portland, OR 972201225029184
- Mahnaz Ahmad, M.D.Portland, OR 972201124046727
- Michael Bower, MDPortland, OR 972201700814936
- Kay Gates, MDPortland, OR 972201437194891
- Richard Gicking, MDPortland, OR 972201477524338
- Linda Hungerford, MDPortland, OR 972201902832363
- Jennifer Lin, MDPortland, OR 972201114996485
- Brian Little, D.O.Portland, OR 972201912987009
Common questions
What is Richard L. Hsu, MD's NPI number?
Richard L. Hsu, MD's National Provider Identifier (NPI) is 1174552491, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard L. Hsu, MD located?
The NPPES record lists a practice address at 1321 NE 99TH Ave Ste 100, Portland, OR, 97220. Phone: (503) 215-4050. Providers update this record themselves, so call before visiting.
How can I verify Richard L. Hsu, MD's license?
NPPES lists Oregon license number MD20993, 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 Richard L. Hsu, MD prescribe under Medicare Part D?
In 2024, Richard L. Hsu, MD had 14,377 Medicare Part D claims for 827 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.