Gregory Martinez, M.D.
Gregory Martinez is a Nephrology Internal Medicine specialist based in Fresno, CA with over 20 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
Patients across CA can see Gregory Martinez, M.D. in person in Fresno or via virtual visit — no travel required. He graduated from Jefferson Medical College of Thomas Jefferson University in 2006 and has 20+ years of clinical experience. Among his Medicare patients, common conditions include hypertension, high cholesterol, and kidney disease (per CMS data).
Older · 3203dNPPES updated 2017-08-15 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
568 E Herndon Ave Suite 201, Fresno, CA 93720-2989
How Does This Doctor Compare?
Medicare Patients
883
Unique beneficiaries
High volumePrescription Recipients
437
Patients prescribed
Prescriptions Written
1,959
Total claims
Total Medicare drug cost: $598k
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 Chronic Kidney Disease.
High blood pressure — a leading risk factor for heart disease and stroke
Elevated cholesterol or triglycerides that increase heart disease risk
Gradual loss of kidney function over time, often linked to diabetes or hypertension
A condition where the body cannot properly regulate blood sugar levels
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
The heart cannot pump blood efficiently enough to meet the body's needs
Joint inflammation causing pain, swelling, and stiffness
An irregular, often rapid heartbeat that increases the risk of stroke
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.3k received from industry
62 transactions reported in 2024 ·Moderate 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 Gregory Martinez's NPI.
Patient Reviews
No patient reviews yet. If you've seen Gregory Martinez, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2006
Sidney Kimmel Medical College at Thomas Jefferson University
20 years in practice
Experienced
Nephrologists treat kidney diseases including chronic kidney disease, kidney failure requiring dialysis, glomerulonephritis, kidney stones, and electrolyte disorders. They manage dialysis access and kidney transplant follow-up.
Taxonomy: 207RN0300X
Education & Training
Jefferson Medical College of Thomas Jefferson University (Class of 2006)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190045
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Gregory Martinez
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Gregory Martinez for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Fresno 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 Gregory Martinez
NPI records show Dr. Martinez as active with telehealth listed in Fresno, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (559) 228-6600.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Gregory Martinez
Practice Location
568 E Herndon Ave Suite 201, Fresno, CA 93720-2989
Mailing Address
568 E Herndon Ave Suite 201, Fresno, CA 93720-2989
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers
Nephrology Internal Medicine in California
See allGerson Charles Bernhard, MD
San Francisco, CA
John P. Kane, MD
San Francisco, CA
Yzhar Charuzi, M.D
Los Angeles, CA