John Casey Heffernan, DO
John Casey Heffernan, DO has been part of the Walla Walla medical community since 2017 in group practice. He has been in practice for 9+ years. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data). CMS MIPS quality score: 94.96/100 (2023).
At a glance
- Federal MIPS score higher than 95% of MIPS-scored doctors in Washington
- Virtual visits available — no app or travel required
Older · 608dNPPES updated 2024-09-05 · verify on CMS
Contact & Location
Practice Location
380 Chase Ave, Walla Walla, WA 99362-2924
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 95% of doctors in Washington on federal quality measures.
MIPS Score
202394.96/100
Washington avg: 87.4 · US avg: 83.6
✓ Higher than most doctors nationally(+11.4 pts)
Top 5% of MIPS-scored doctors in WashingtonHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better74.7%
Washington avg: 85.1 · US avg: 82.8
⚠ Lower than most doctors nationally(-8.1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
81
Unique beneficiaries
Standard volumePrescription Recipients
249
Patients prescribed
Prescriptions Written
3,052
Total claims
Total Medicare drug cost: $906k
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 Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+4%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-8%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+2%) — a focus area for this doctor
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%↓ Fewer patients than average (-5%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-13%) — less common here
A condition causing airway inflammation, wheezing, and difficulty breathing
US avg: 13.3%↑ More patients than average (+7%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$134 received from industry
7 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to John Casey Heffernan's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Sep 4, 2024
CMS-verified certification date
9 years in practice
Established
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
Virtual Internal Medicine Care With John Casey Heffernan
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John Casey Heffernan for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Walla Walla 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 John Casey Heffernan
Dr. Heffernan is listed as active in the NPI registry with telehealth listed in Walla Walla, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (509) 897-5836.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact John Casey Heffernan
Practice Location
380 Chase Ave, Walla Walla, WA 99362-2924
Mailing Address
380 Chase Ave, Walla Walla, WA 99362-2924
This is a provider directory. Contact the office directly to schedule appointments.
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