Gwen Johanna Grewe, M.D.

Internal Medicine

Gwen Johanna Grewe is an Internal Medicine specialist based in Tualatin, OR with over 29 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(503) 692-7785Tualatin, OR
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Gwen Johanna Grewe, M.D. practices as part of a group internist practice in Tualatin, OR. She has been practicing since 2006 — over 29 years. She regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).

At a glance

  • Prescribes opioids less than 60% of reporting doctors in Oregon
  • Virtual visits available — no app or travel required
1 of 339 Internal Medicine providers in ORSee all Internal Medicine in Tualatin29+ years experienceNPI since 2006

Older · 5574dNPPES updated 2011-02-18 · verify NPI on CMS · Verify license at Oregon Medical Board

Contact & Location

Practice Location

19875 Sw 65th Ave, Tualatin, OR 97062-8353

Fax: (503) 885-1663
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively.

Opioid Rx

↓ Lower = better

1%

Oregon avg: 7 · US avg: 5.1

Higher than most doctors nationally(-4.1 pts)

Typical range among reporting doctors in Oregon

1% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Medicare Patients

57

Unique beneficiaries

Standard volume

Prescription Recipients

126

Patients prescribed

Prescriptions Written

1,809

Total claims

Total Medicare drug cost: $112k

Percentile rankings compared against 1,341 reporting peers in Oregon.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Lower than avg (-9%)61%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↓ Fewer patients than average (-9%) — less common here

Arthritis
49%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%
Mood Disorders
33%

Conditions affecting emotional state, including depression and bipolar disorder

Depression
Lower than avg (-4%)28%

A mood disorder causing persistent sadness and loss of interest in activities

US avg: 31.8%

↓ Fewer patients than average (-4%) — less common here

Diabetes
Lower than avg (-9%)25%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-9%) — less common here

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. 29 years in practice

    Experienced

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Practice Footprint

Mailing address

2007 Sw Dewitt St, Portland, OR 97239-2031

Differs from practice location

Virtual Internal Medicine Care With Gwen Johanna Grewe

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Gwen Johanna Grewe for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Tualatin required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Gwen Johanna Grewe

NPI records show Dr. Grewe as active with telehealth listed in Tualatin, OR. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (503) 692-7785.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

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Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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