John Karan, M.D.
Neurology Psychiatry & Neurology
With over 40 years in psychiatry & neurology, John Karan, M.D. is a long-established neurology psychiatry & neurology specialist in Antioch. With 40+ years of experience, he has been practicing in the Antioch area. Among his Medicare patients, common conditions include hypertension, high cholesterol, and diabetes (per CMS data).
At a glance
- Uses generic medications more than 90% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 5628dNPPES updated 2010-12-09 · verify NPI on CMS · Verify license at Medical Board of California
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
MIPS Score
202325.34/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-58.3 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better96.2%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+13.4 pts)
Top 10% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
422
Unique beneficiaries
Standard volumePrescription Recipients
172
Patients prescribed
Prescriptions Written
1,399
Total claims
Total Medicare drug cost: $141k
Percentile rankings compared against 9,360 reporting peers in California.
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 Diabetes.
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
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+20%) — a focus area for this doctor
Disrupted blood supply to the brain, requiring urgent medical attention
US avg: 13.4%↑ 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 (-5%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+9%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+16%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$209 received from industry
10 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 Karan's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
40 years in practice
Senior practitioner
Neurologists diagnose and treat disorders of the nervous system including stroke, epilepsy, multiple sclerosis, Parkinson's disease, migraines, neuropathy, and dementia.
Taxonomy: 2084N0400X
Mailing address
Po Box 3796, Antioch, CA 94531-3796
Differs from practice location
Primary hospital affiliation: Acute Care - Department of Defense
CMS Certification Number: 19050F
View hospital on Medicare Care CompareVirtual Psychiatry & Neurology Care With John Karan
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John Karan for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Antioch 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 Karan
Dr. Karan is listed as active in the NPI registry with telehealth listed in Antioch, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (925) 753-1986.
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 Karan
Practice Location
3701 Lone Tree Way Suite 5, Antioch, CA 94509-6038
Mailing Address
Po Box 3796, Antioch, CA 94531-3796
This is a provider directory. Contact the office directly to schedule appointments.
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