Mark W Beiter, DO

Internal Medicine

Mark W Beiter is an Internal Medicine specialist based in Seattle, WA with over 21 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

(206) 583-6079Seattle, WA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Mark W Beiter, DO has practiced internal medicine for 21+ years, working in group practice. He graduated from Arizona College of Osteopathic Medicine Mid Western University in 2005 and has 21+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and cancer (per CMS claims data).

1 of 581 Internal Medicine providers in WASee all Internal Medicine in Seattle21+ years experienceNPI since 2007

Older · 4711dNPPES updated 2013-07-01 · verify NPI on CMS · Verify license at Washington Medical Commission

Contact & Location

Practice Location

925 Seneca St, Seattle, WA 98101-2742

CMS Clinical Data

How Does This Doctor Compare?

Opioid Rx

↓ Lower = better

40.15%

Washington avg: 5.7 · US avg: 5.1

Lower than most doctors nationally(+35 pts)

40.15% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Medicare Patients

113

Unique beneficiaries

Standard volume

Prescription Recipients

113

Patients prescribed

Prescriptions Written

954

Total claims

Total Medicare drug cost: $51k

Percentile rankings compared against 1,521 reporting peers in Washington.

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 Cancer.

Hypertension
Higher than avg (+1%)71%

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

US avg: 70.2%

↑ More patients than average (+1%) — a focus area for this doctor

High Cholesterol
Lower than avg (-12%)58%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↓ Fewer patients than average (-12%) — less common here

Cancer
Higher than avg (+23%)44%

Diseases involving abnormal cell growth with potential to spread to other body parts

US avg: 20.8%

↑ More patients than average (+23%) — a focus area for this doctor

Depression
Higher than avg (+10%)42%

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

US avg: 31.8%

↑ More patients than average (+10%) — a focus area for this doctor

Mood Disorders
42%

Conditions affecting emotional state, including depression and bipolar disorder

Arthritis
Lower than avg (-11%)38%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-11%) — less common here

Anxiety Disorders
Higher than avg (+1%)35%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↑ More patients than average (+1%) — a focus area for this doctor

Diabetes
Lower than avg (-4%)30%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-4%) — 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. Graduated medical school · 2005

    Arizona College of Osteopathic Medicine Mid Western University

  2. 21 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

Education & Training

Arizona College of Osteopathic Medicine Mid Western University (Class of 2005)

Practice Footprint

Mailing address

1100 9th Ave, Seattle, WA 98101-2756

Differs from practice location

Virtual Internal Medicine Care With Mark W Beiter

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

Schedule a virtual visit with Mark W Beiter for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Seattle 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 W Beiter

NPI records show Dr. Beiter as active with telehealth listed in Seattle, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (206) 583-6079.

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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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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