Mary Frances T L Lowdermilk, M.D.
Family Medicine Physician · Portland, OR
Mary Frances T L Lowdermilk, M.D. is a family medicine physician with a practice address in Portland, Oregon, and NPI 1245453315, issued on Apr 10, 2007. Check the license (Oregon MD197413, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mary Frances T L Lowdermilk
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD197413 OR
MD60603364 WA
C168167 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20 N Skidmore St, Portland, OR 97217
- Phone
- (888) 663-6331
- Enumerated
- Apr 10, 2007
- Record last updated
- Aug 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20260217002703); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 20 N Skidmore St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Owens, FNP-CFamily Nurse Practitioner1740696160
- Nadia Reinhart-McMillan, D.O.Family Medicine Physician1750813507
- Jonathan Shie, MDFamily Medicine Physician1619322393
- Stephen Zeimantz, NPNurse Practitioner1922001478
Verify Mary Frances T L Lowdermilk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD197413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average family medicine physician in 2024
4,912 Medicare Part D claims for 416 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. 139 claims were for opioids.
Most prescribed
- Atorvastatin Calcium411 claims
- Levothyroxine Sodium242 claims
- Lisinopril192 claims
- Amlodipine Besylate184 claims
- Losartan Potassium180 claims
- Omeprazole156 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
- Rolling Hills ClinicCorning, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Frances T L Lowdermilk among 2,847 family medicine physician records in Oregon
Mary Frances T L Lowdermilk, M.D. 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 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2009 among the 1,671 with a school on file
- Record last updated2026 · 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
- Matthew Breeze, MDPortland, OR 972171083655609
- Simon Chan, DOPortland, OR 972171841242195
- Diego Diaz, MDPortland, OR 972171407019532
- Shauna Ensminger, MDPortland, OR 972171619960002
- Gregory Freed, M.D.Portland, OR 972171346433042
- Monique Gedenk, MDPortland, OR 972171740226745
- Janel Guyette, M.D.Portland, OR 972171205990660
- Michael Miller, MDPortland, OR 972171104902659
Common questions
What is Mary Frances T L Lowdermilk, M.D.'s NPI number?
Mary Frances T L Lowdermilk, M.D.'s National Provider Identifier (NPI) is 1245453315, issued on Apr 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Frances T L Lowdermilk, M.D. located?
The NPPES record lists a practice address at 20 N Skidmore St, Portland, OR, 97217. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.
How can I verify Mary Frances T L Lowdermilk, M.D.'s license?
NPPES lists Oregon license number MD197413, 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 Mary Frances T L Lowdermilk, M.D. prescribe under Medicare Part D?
In 2024, Mary Frances T L Lowdermilk, M.D. had 4,912 Medicare Part D claims for 416 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.