Mark Warnholz Williams, MD

Family Medicine

(541) 548-2164Redmond, OR
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Patients across OR can see Mark Warnholz Williams, MD in person in Redmond or via virtual visit — no travel required. He graduated from University of Nevada School of Medicine in 2012 and has 14+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).

At a glance

  • Prescribes opioids less than 36% of reporting doctors in Oregon
  • Uses generic medications more than 69% of reporting doctors in Oregon
  • Virtual visits available — no app or travel required
1 of 408 Family Medicine providers in ORSee all Family Medicine in Redmond14+ years experienceNPI since 2012

Older · 2205dNPPES updated 2020-04-23 · verify on CMS

Contact & Location

Practice Location

211 Nw Larch Ave, Redmond, OR 97756-1357

Fax: (541) 548-0534
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.

Opioid Rx

↓ Lower = better

4.52%

Oregon avg: 7 · US avg: 5.1

Higher than most doctors nationally(-0.6 pts)

4.52% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

90.5%

Oregon avg: 83.7 · US avg: 82.8

Higher than most doctors nationally(+7.7 pts)

Typical range among reporting doctors in Oregon

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

411

Unique beneficiaries

Standard volume

Prescription Recipients

869

Patients prescribed

Prescriptions Written

9,050

Total claims

Total Medicare drug cost: $751k

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 (+2%)72%

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

US avg: 70.2%

↑ More patients than average (+2%) — a focus area for this doctor

High Cholesterol
Lower than avg (-4%)66%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

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

Arthritis
Lower than avg (-8%)41%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-8%) — 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

Ischemic Heart Disease
Lower than avg (-7%)25%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

US avg: 31.7%

↓ Fewer patients than average (-7%) — less common here

Mood Disorders
20%

Conditions affecting emotional state, including depression and bipolar disorder

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. Graduated medical school · 2012

    University of Nevada School of Medicine

  2. Board certified · Apr 22, 2020

    CMS-verified certification date

  3. 14 years in practice

    Established

Family MedicineAllopathic & Osteopathic Physicians

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Taxonomy: 207Q00000X

Education & Training

University of Nevada School of Medicine (Class of 2012)

Practice Footprint

Mailing address

Po Box 5579, Bend, OR 97708-5579

Differs from practice location

Virtual Family Medicine Care With Mark Warnholz Williams

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

Schedule a virtual visit with Mark Warnholz Williams for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Redmond 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 Mark Warnholz Williams

Dr. Williams is listed as active in the NPI registry with telehealth listed in Redmond, OR. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (541) 548-2164.

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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