Physician Profile
John Joseph Jernick, M.D.
Unclaimed ProfileAbout Dr. Jernick
John Joseph Jernick, M.D. is a healthcare provider in Stanford, CA specializing in family practice. John trained at State University of New York at Stony Brook, School of Medicine, graduating in 1979. John is also listed as specializing in family medicine. Medicare claims data shows John provided 418 services to 323 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (650) 723-6963
- Email not available
Practice Locations
300 PASTEUR DR # N329
Stanford, CA 94305
Conditions Commonly Evaluated or Treated
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cardiometabolic
- High blood pressure (hypertension)
- High cholesterol and lipid disorders
- Metabolic syndrome
- Overweight and obesity
- Peripheral artery disease
- Prediabetes
- Stable coronary artery disease
- Type 2 diabetes
Digestive
- Acid reflux (GERD)
- Acute diarrhea
- Constipation
- Diverticulosis and uncomplicated diverticulitis
- Fatty liver disease
- Hemorrhoids
- Irritable bowel syndrome
- Peptic ulcer disease
- Viral gastroenteritis
Endocrine, blood, and bone
- Iron-deficiency anemia
- Osteoporosis
- Overactive thyroid (hyperthyroidism)
- Underactive thyroid (hypothyroidism)
- Vitamin D deficiency
Genitourinary and reproductive
- Abnormal uterine bleeding
- Enlarged prostate (BPH)
- Erectile dysfunction
- Painful periods
- Sexually transmitted infections
- Urinary tract infection
- Vaginitis
Musculoskeletal and pain
- Fibromyalgia
- Gout
- Low back pain
- Neck pain
- Osteoarthritis
- Plantar fasciitis
- Sprains and muscle strains
- Tendinitis and tendinopathy
Neurologic and behavioral
- Anxiety disorders
- Attention-deficit/hyperactivity disorder
- Depression
- Dizziness and vertigo
- Insomnia
- Migraine
- Tension headaches
Respiratory and infectious
- Acute bronchitis
- Asthma
- Chronic obstructive pulmonary disease
- Common cold and upper respiratory infections
- Community-acquired pneumonia
- COVID-19
- Influenza
- Mononucleosis
- Sinus infection
- Strep throat
Skin
Common childhood and ear conditions
Procedures & services
Preventive and evaluation
- Annual physical and preventive visit
- Chronic disease management
- Medicare annual wellness visit
- Medication review and management
- Preoperative medical clearance
- Sports physical
- Well-child visits
Preventive interventions
- Birth control counseling
- Smoking cessation counseling
- Vaccinations and immunizations
- Weight-management counseling
Screening and testing
- Blood pressure screening
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- Electrocardiogram
- Point-of-care laboratory testing
- Spirometry
Office procedures
Procedures Most Often Billed to Medicare
418 services · 323 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
140 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
136 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
117 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
25 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other family practices in Stanford 8
Same specialty, same city.
Trained at State University of New York at Stony Brook, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1979 at State University of New York at Stony Brook, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Jernick specialize in?
Dr. Jernick is a family practice in Stanford, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
Where is Dr. Jernick located?
Dr. Jernick is listed at 300 PASTEUR DR # N329, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Jernick's phone number?
The number on file is (650) 723-6963. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Jernick?
Dr. Jernick's National Provider Identifier is 1689739369. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Jernick go to medical school?
Dr. Jernick attended State University of New York at Stony Brook, School of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Jernick have?
Dr. Jernick has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Jernick do most often?
According to Medicare billing data, Dr. Jernick the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Jernick's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Jernick. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.