Diane Ashley Mar, MD
Rheumatology Internal Medicine
Diane Ashley Mar is a Rheumatology Internal Medicine specialist based in Stanford, CA with over 10 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
Patients across CA can see Diane Ashley Mar, MD in person in Stanford or via virtual visit — no travel required. Trained at University of Nevada School of Medicine (class of 2016), she has been practicing for over 10 years. Among her Medicare patients, common conditions include arthritis, hypertension, and high cholesterol (per CMS data). CMS MIPS quality score: 76.5/100 (2023).
At a glance
- Uses generic medications more than 39% of reporting doctors in California
- Federal MIPS score higher than 30% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 770dNPPES updated 2024-04-15 · verify NPI on CMS · Verify license at Medical Board of California
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
MIPS Score
202376.5/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-7.1 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better85.7%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+2.9 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
93
Unique beneficiaries
Standard volumePrescription Recipients
44
Patients prescribed
Prescriptions Written
279
Total claims
Total Medicare drug cost: $383k
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 Arthritis, Hypertension, and High Cholesterol.
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+26%) — 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 (-1%) — less common here
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-2%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+12%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+6%) — a focus area for this doctor
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+15%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-1%) — 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 · 2016
University of Nevada School of Medicine
Board certified · Apr 14, 2024
Self-reported via NPPES
10 years in practice
Established
Rheumatologists treat autoimmune and inflammatory conditions including rheumatoid arthritis, lupus, psoriatic arthritis, gout, osteoarthritis, and vasculitis. They manage biologic therapies and joint-preserving treatments.
Taxonomy: 207RR0500X
Education & Training
University of Nevada School of Medicine (Class of 2016)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190017
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Diane Ashley Mar
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Diane Ashley Mar for arthritis follow-ups, blood pressure monitoring, cholesterol management — 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 Diane Ashley Mar
Dr. Mar 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) 723-4000.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Diane Ashley Mar
Practice Location
300 Pasteur Dr, Stanford, CA 94305-2200
Mailing Address
300 Pasteur Dr, Stanford, CA 94305-2200
This is a provider directory. Contact the office directly to schedule appointments.
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