Jason E Williams, MD
Gastroenterology Internal Medicine
Jason E Williams is a Gastroenterology Internal Medicine specialist based in San Jose, CA with over 21 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
With over 21 years in internal medicine, Jason E Williams, MD is a long-established gastroenterologist in San Jose. Trained at Duke University School of Medicine (class of 2005), he has been practicing for over 21 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and diabetes. CMS MIPS quality score: 80.58/100 (2023).
At a glance
- Federal MIPS score higher than 46% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 5073dNPPES updated 2012-07-03 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
751 S Bascom Ave Santa Clara Valley Medical Center, San Jose, CA 95128-2604
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in California.
MIPS Score
202380.58/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-3 pts)
Average range among MIPS-scored doctors in CaliforniaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better68.8%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-14 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
155
Unique beneficiaries
Standard volumePrescription Recipients
86
Patients prescribed
Prescriptions Written
311
Total claims
Total Medicare drug cost: $261k
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%↓ Fewer patients than average (-10%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+9%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-5%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-26%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-12%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↓ Fewer patients than average (-2%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
Patient Reviews
No patient reviews yet. If you've seen Jason E Williams, 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 · 2005
Duke University School of Medicine
21 years in practice
Experienced
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
Duke University School of Medicine (Class of 2005)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190017
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Jason E Williams
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Jason E Williams for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to San Jose 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 Jason E Williams
Dr. Williams 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) 885-7947.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · 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 Jason E Williams
Practice Location
751 S Bascom Ave Santa Clara Valley Medical Center, San Jose, CA 95128-2604
Mailing Address
751 S Bascom Ave Santa Clara Valley Medical Center, San Jose, CA 95128-2604
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers
Gastroenterology 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