John Joseph Jernick, M.D.
John Joseph Jernick is a Family Medicine specialist based in Stanford, CA with over 47 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Patients across CA can see John Joseph Jernick, M.D. in person in Stanford or via virtual visit — no travel required. He graduated from State University of New York at Stony Brook, School of Medicine in 1979 and has 47+ years of clinical experience. Among his Medicare patients, common conditions include high cholesterol and hypertension (per CMS data).
At a glance
- Prescribes opioids less than 39% of reporting doctors in California
- Uses generic medications more than 76% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 6894dNPPES updated 2007-07-08 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
300 Pasteur Dr # N329, Stanford, CA 94305-2200
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 = better2.01%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-3.1 pts)
2.01% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better91.7%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+8.9 pts)
Better than 76% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
193
Unique beneficiaries
Standard volumePrescription Recipients
190
Patients prescribed
Prescriptions Written
1,790
Total claims
Total Medicare drug cost: $172k
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 High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-16%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-18%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-21%) — less common here
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 · 1979
Renaissance School of Medicine at Stony Brook University
47 years in practice
Senior practitioner
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
State University of New York at Stony Brook, School of Medicine (Class of 1979)
Mailing address
33 Grove Dr, Portola Valley, CA 94028-7636
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 200034
View hospital on Medicare Care CompareVirtual Family Medicine Care With John Joseph Jernick
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John Joseph Jernick for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Stanford 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 Joseph Jernick
Dr. Jernick is listed as active in the NPI registry with telehealth listed in Stanford, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 723-6963.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact John Joseph Jernick
Practice Location
300 Pasteur Dr # N329, Stanford, CA 94305-2200
Mailing Address
33 Grove Dr, Portola Valley, CA 94028-7636
This is a provider directory. Contact the office directly to schedule appointments.
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