DR. MARY FRANCES T L LOWDERMILK M.D.
NPI 1245453315
Family Medicine in Portland, OR
About Dr. Mary Frances T L Lowdermilk M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY FRANCES T L LOWDERMILK M.D. (NPI 1245453315) is an individual family medicine provider in Portland, Oregon, licensed in Oregon (MD197413) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Peacehealth Southwest Medical Center, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mary Frances T L Lowdermilk M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Mary Frances Lowdermilk reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97210
- Reassigned Medicare billing, Oregon enrollment
- 1,248 clinicians in this Medicare group
Vancouver, WA 98664
- Reassigned Medicare billing, Washington enrollment
- 244 clinicians in this Medicare group
Tigard, OR 97223
- Reassigned Medicare billing, Oregon enrollment
- 9 clinicians in this Medicare group
Tualatin, OR 97062
- Reassigned Medicare billing, Oregon enrollment
- 218 clinicians in this Medicare group
Red Bluff, CA 96080
- Reassigned Medicare billing, Texas enrollment
- 25 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Peacehealth Southwest Medical Center
Acute Care Hospitals · Vancouver, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97217 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mary Frances Lowdermilk's NPI number?
The NPI number for Mary Frances Lowdermilk is 1245453315. It was assigned to this individual provider in the NPPES registry on April 10, 2007. The provider is also known as Mary Frances B Lim MD.
Where is Mary Frances Lowdermilk located?
Mary Frances Lowdermilk practices at 20 N Skidmore St, Portland, OR 97217. The listed phone number is (888) 663-6331.
What is Mary Frances Lowdermilk's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mary Frances Lowdermilk enrolled in Medicare?
Yes. Mary Frances Lowdermilk is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mary Frances Lowdermilk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Frances Lowdermilk reassigns Medicare benefits to 5 organizations: Legacy Clinics LLC (Portland, OR), Peacehealth (Vancouver, WA), One Medical Group, Inc (Tigard, OR), Legacy Meridian Park Hospital (Tualatin, OR) and Rolling Hills Clinic (Red Bluff, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Frances Lowdermilk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Frances Lowdermilk accept?
Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., Providence Health Plan and Regence BlueCross BlueShield of Oregon list Mary Frances Lowdermilk as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mary Frances Lowdermilk affiliated with any hospitals?
According to CMS data, Mary Frances Lowdermilk is affiliated with Peacehealth Southwest Medical Center.
When was this NPI record last updated?
The NPPES record for Mary Frances Lowdermilk was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Mary Frances T L Lowdermilk, M.D. · NPI 1245453315
Family Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since April 10, 2007.
## Identity
- **NPI:** 1245453315 (Entity type: Individual)
- **Enumerated:** April 10, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MD197413 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 20 N SKIDMORE ST, Portland, OR 97217-3058
- **Phone:** (888) 663-6331
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Legacy Clinics LLC (NPI 1902827272, Portland, OR); Peacehealth (NPI 1134178999, Vancouver, WA); One Medical Group, Inc (NPI 1891521134, Tigard, OR); Legacy Meridian Park Hospital (NPI 1023305034, Tualatin, OR); Rolling Hills Clinic (NPI 1679988950, Red Bluff, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** September 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1245453315) · Data from the CMS NPPES public registry.