Adam C. Diehl, MD
Adam C. Diehl is a Hematology & Oncology specialist based in Seattle, WA with over 11 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Adam C. Diehl, MD specializes in internal medicine, serving patients in Seattle, WA in group practice. A Johns Hopkins University School of Medicine graduate since 2015, he brings 11+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and cancer. CMS MIPS quality score: 93.09/100 (2023).
At a glance
- Federal MIPS score higher than 46% of MIPS-scored doctors in Washington
- Virtual visits available — no app or travel required
Older · 1797dNPPES updated 2021-06-22 · verify NPI on CMS · Verify license at Washington Medical Commission
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in Washington.
MIPS Score
202393.09/100
Washington avg: 87.4 · US avg: 83.6
✓ Higher than most doctors nationally(+9.5 pts)
Average range among MIPS-scored doctors in WashingtonHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better7.86%
Washington avg: 5.7 · US avg: 5.1
⚠ Lower than most doctors nationally(+2.8 pts)
7.86% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
184
Unique beneficiaries
Standard volumePrescription Recipients
133
Patients prescribed
Prescriptions Written
1,120
Total claims
Total Medicare drug cost: $2.27M
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.
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.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+3%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-3%) — less common here
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+32%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-14%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-9%) — less common here
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+2%) — a focus area for this doctor
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.
Graduated medical school · 2015
Johns Hopkins University School of Medicine
Board certified · Jun 21, 2021
Self-reported via NPPES
11 years in practice
Established
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Taxonomy: 207RH0003X
Education & Training
Johns Hopkins University School of Medicine (Class of 2015)
Mailing address
Po Box 50095, Seattle, WA 98145-5095
Differs from practice location
Virtual Hematology & Oncology Care With Adam C. Diehl
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Adam C. Diehl 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 Adam C. Diehl
NPI records show Dr. Diehl as active with telehealth listed in Seattle, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (206) 520-5000.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Adam C. Diehl
Practice Location
825 Eastlake Ave. E, Seattle, WA 98109-1023
Mailing Address
Po Box 50095, Seattle, WA 98145-5095
This is a provider directory. Contact the office directly to schedule appointments.
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