John S. Kellogg, M.D., M.S.
John S. Kellogg is an Allergy Allergy & Immunology specialist based in San Jose, CA with over 33 years of clinical experience. Offers virtual telehealth visits.
John S. Kellogg, M.D., M.S. has practiced allergy & immunology for 33+ years, working in group practice. He graduated from Tulane University School of Medicine in 1993 and has 33+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
Older · 1174dNPPES updated 2023-03-07 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
130 Bellerose Dr, San Jose, CA 95128-1729
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%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-9%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+4%) — a focus area for this doctor
A condition causing airway inflammation, wheezing, and difficulty breathing
US avg: 13.3%↑ More patients than average (+25%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-3%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+10%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — 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 · 1993
Tulane University School of Medicine
33 years in practice
Senior practitioner
A physician who specializes in the diagnosis, treatment, and management of allergies.
Taxonomy: 207KA0200X
Education & Training
Tulane University School of Medicine (Class of 1993)
Virtual Allergy & Immunology Care With John S. Kellogg
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John S. Kellogg for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to San Jose required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about John S. Kellogg
Dr. Kellogg is listed as active in the NPI registry with telehealth listed in San Jose, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (408) 286-1707.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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