Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mary Frances T L Lowdermilk, MD

Individual provider Family Medicine Physician · NPI 1245453315

Dr. Mary Frances T L Lowdermilk, MD is registered under Family Practice in Portland, Oregon. Qualified in 2005, 21 years ago. Practices with Rolling Hills Clinic, a 13-clinician group and accepts Medicare assignment. Licensed in California, Oregon and Washington.

Years since qualifying
21
Licensed in
CA, OR, WA
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

20 N Skidmore St
Portland, OR 97217-3058
Phone: (888) 663-6331
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD197413 (OR)
Family Medicine Physician Taxonomy 207Q00000X · Licence C168167 (CA)
Family Medicine Physician Taxonomy 207Q00000X · Licence MD60603364 (WA)

Record details

NPI number1245453315
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2007
Last updated in NPPESSeptember 3, 2026
Certification dateSeptember 3, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Rolling Hills Clinic — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients132
Services billed 452 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • St Elizabeth Community Hospital Hospital · Red Bluff, CA · listed as Dignity Health St Elizabeth Community Hospital
  • Peacehealth Southwest Medical Cente Hospital · Vancouver, WA
  • St. Elizabeth Comm Hosp Hha Home health agency · Red Bluff, CA

Colleagues at Rolling Hills Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 13 clinicians in the practice; 11 are shown here.

Other providers in Portland