Mohan Nallicheri Viswanathan, MD

3 locations · Stanford Health Care · 3,152 clinicians in this group

Hospitals listed: Stanford Health Care · Stanford Health Care Tri-Valley. That is not proof they admit you there this week.

5 plans · 2 carriers

Licence A80904 · Current

Licensed to practise in California · since 2002 · expires 2028-04-30 · University of California San Francisco School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

2 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

• Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend it
  Overall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
• Stanford Health Care Tri-ValleyPleasanton, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Stanford Health Care, which runs 3 hospitalsPatients rate it 3 of 5 · 74% would definitely recommend it
  Overall rating: 5 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.178, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.237, Oct 2024 – Sep 2025

$213,732

Medicare paid this office $213,732 for 1,242 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Procedures Medicare counted

Who their Medicare patients are

1,242 Original Medicare patients in 2024. Average age 75 · Under 65 9% · 85 and older 17% · Women 48% · Also on Medicaid 27% · Health risk score 2.23. Sicker patients than 9 in 10 peers; the typical clinical cardiac electrophysiology clinician is at 1.8.

Conditions among them: High blood pressure 75% · Atrial fibrillation 60% · Coronary heart disease 50% · Heart failure 47% · Chronic kidney disease 42% · Diabetes 37% · Depression 25% · Cancer 21% · COPD 20% · Stroke 17% · Dementia 16%.

The office billed $1,657,092, Medicare allowed $271,380 and paid $213,732; for 2,110 services of 59 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

$5,504 in 2024

Medicaid paid $5,504 for 579 billed services this clinician did in 2024, up to 115 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

$303,942

Pharmacies billed $303,942 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their Part D prescriptions (0 of 733) in 2024. At or below the middle of the specialty; the typical clinical cardiac electrophysiology clinician is at 0%.

499 generic and 234 brand-name prescriptions · $303,942 in drug cost.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Year by year

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

$4,117 in 2025

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Research money

Money a company paid to run a study. Where it went to their institution, the clinician is named as an investigator and did not receive it; the amount covers the whole study, often across many sites.

Medicare did not publish checkup rates for this clinician.

NPI

1689898397

Licence

CA A 80904California A80904: Current · expires 2028-04-30

Trained

University of California, San Francisco School of Medicine, 1999

Group

Stanford Health Care

Video visits

Lists video visits

Gender

Male