Ariel Kathleen Smits, MD
Family Medicine Physician · Portland, OR
Ariel Kathleen Smits, MD is a family medicine physician with a practice address in Portland, Oregon, and NPI 1811903370, issued on Aug 1, 2006. Check the license (Oregon MD22458, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ariel Kathleen Smits
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD22458 OR
Self-reported in NPPES; status is on the state search - Practice location
- 4411 SW Vermont St, Portland, OR 97219
- Phone
- (503) 494-9992
- Enumerated
- Aug 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 226991 OR
- Medicare enrollment
- Enrolled (PECOS I20081007000839); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 4411 SW Vermont St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juliet Baker, ATCAthletic Trainer1609289032
- Savannah Deming, PA-CPhysician Assistant1851011639
- Thea Dennis-Arends, MDFamily Medicine Physician1225778756
- Sherilyn Destefano, MDFamily Medicine Physician1033616602
- Jennifer Devoe, MDFamily Medicine Physician1457399321
- Franklyn Dornfest, MDFamily Medicine Physician1306852918
Verify Ariel Kathleen Smits in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD22458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average family medicine physician in 2024
1,037 Medicare Part D claims for 108 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium62 claims
- Levothyroxine Sodium56 claims
- Hydrochlorothiazide40 claims
- Losartan Potassium35 claims
- Lisinopril34 claims
- Escitalopram Oxalate31 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
- University Professional ServicesPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariel Kathleen Smits among 2,847 family medicine physician records in Oregon
Ariel Kathleen Smits, 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
- Graduated1999 · median 2009 among the 1,671 with a school on file
- Record last updated2007 · 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).
561 family medicine physician records list a practice address in Portland
They are 561 of the 42,088 NPPES records with a practice address in Portland, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thea Dennis-Arends, MDPortland, OR 972191225778756
- Sherilyn Destefano, MDPortland, OR 972191033616602
- Jennifer Devoe, MDPortland, OR 972191457399321
- Franklyn Dornfest, MDPortland, OR 972191306852918
- Lyle Fagnan, MDPortland, OR 972191669487161
- Eric Herman, MDPortland, OR 972191851483432
- Elizabeth Steiner Hayward, MDPortland, OR 972191053329508
- Kaitlyn Stettnichs, MDPortland, OR 972191962082503
Common questions
What is Ariel Kathleen Smits, MD's NPI number?
Ariel Kathleen Smits, MD's National Provider Identifier (NPI) is 1811903370, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ariel Kathleen Smits, MD located?
The NPPES record lists a practice address at 4411 SW Vermont St, Portland, OR, 97219. Phone: (503) 494-9992. Providers update this record themselves, so call before visiting.
How can I verify Ariel Kathleen Smits, MD's license?
NPPES lists Oregon license number MD22458, 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 Ariel Kathleen Smits, MD prescribe under Medicare Part D?
In 2024, Ariel Kathleen Smits, MD had 1,037 Medicare Part D claims for 108 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.