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Healthcare Providers & Facilities in Lake Oswego, OR

Public healthcare directory of 1,382 individual practitioners and 391 healthcare facilities located in Lake Oswego, Oregon.

1,382 Practitioners
391 Facilities
140 Specialties

Medical Specialties in Lake Oswego

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Lake Oswego

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 126 more with at least one listed practitioner. Number of practitioners in brackets.

Dietary & Nutritional Service Providers

Nursing Service Related Providers

Podiatric Medicine & Surgery Service Providers

Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Speech, Language and Hearing Service Providers

Technologists, Technicians & Other Technical Service Providers

Featured Healthcare Providers in Lake Oswego

Practitioner profiles in Lake Oswego, OR with recent CMS Medicare or Open Payments data.

Dennis Marquez , APRN

Nurse Practitioner - Gerontology

5 Centerpointe Dr Ste 600, Lake Oswego, OR
Phone: 5036037355
NPI 1619564192

Natalie Chvirov

Nurse Practitioner - Family

5 Centerpointe Dr, Lake Oswego, OR
Phone: 5032781592
NPI 1134542913

Kyla Walish , PT

Physical Therapist

Medicare Accepted
17355 Boones Ferry Rd, Lake Oswego, OR
Phone: 5036320844
NPI 1508113093

Joanne Taylor , RPH

Pharmacist

401 A Ave, Lake Oswego, OR
Phone: 5036754486
NPI 1720389661

Anthony Matt , PT

Physical Therapist

Medicare Accepted
6405 Rosewood St, Lake Oswego, OR
Phone: 5036757603
NPI 1124146576

Dr. Alia Alhumaid , MD

Internal Medicine

5 Centerpointe Dr Ste 400, Lake Oswego, OR
Phone: 5034867276
NPI 1598936916

Largest Cities in Oregon

Other Oregon cities with a full directory, by the number of active practitioners listed in NPPES.

How Lake Oswego compares with the U.S.

Compared with the U.S. as a whole, Lake Oswego has more clinicians in Naturopath (38.2x), clinicians in Orthopaedic Surgery (3.7x) and Chiropractors (3.6x) per 100,000 residents.

Lake Oswego has 3,422 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

88% of clinicians in Lake Oswego listed in the CMS Medicare file (213 of 241) accept Medicare assignment. That is similar to the Oregon share of 92%.

Only 241 of 1,382 active clinicians in Lake Oswego appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

29% of clinicians in Lake Oswego listed in the CMS Medicare file (71 of 241) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Oregon share of 24%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Lake Oswego CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Lake Oswego, OR

Source: CMS public datasets

Healthcare operations in Lake Oswego, OR encompass 1,382 active individual practitioners and 391 registered medical facilities across 140 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Lake Oswego accounts for $10.7 Million across 159,445 prescription claims. 374 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.4 Million in payments reported by companies to 122 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $10.7M 159,445 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.4M 122 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 374 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $6.2M 113,112 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Lake Oswego

Part B Lab & Imaging Eligible: 256
Durable Medical Equipment (DME): 263
Home Health Agency (HHA): 188
Source: CMS Order and Referring