Mohan Viswanathan, M.D.
NPI 1689898397 · Clinical Cardiac Electrophysiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mohan Viswanathan, M.D. is a Clinical Cardiac Electrophysiology Physician provider in Stanford, CA (NPI 1689898397).
Provider details
- NPI number
- 1689898397
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A 80904 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,961 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 759 | $9 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 140 | $194 |
| Heart Rhythm Review and Interpretation of Continous External Ekg Over 8-15 Days93248 | 116 | $29 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 109 | $217 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 101 | $164 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 179 | 55 |
| Metoprolol Succinate | 156 | 57 |
| Rivaroxabanbrand: Xarelto | 44 | 14 |
| Amiodarone Hcl | 38 | 21 |
| Sotalol Hclbrand: Sotalol | 38 | 11 |
| Pantoprazole Sodium | 35 | 35 |
| Diltiazem Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,857 across 21 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-12
- Last updated
- 2024-04-26
- Certified
- 2024-04-26
Frequently asked questions
- What is Mohan Viswanathan's NPI number?
- Mohan Viswanathan's National Provider Identifier (NPI) is 1689898397, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mohan Viswanathan's specialty?
- Mohan Viswanathan is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mohan Viswanathan located?
- Mohan Viswanathan's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Mohan Viswanathan's phone number?
- The practice phone number listed in the NPPES registry for Mohan Viswanathan is (650) 723-4000.
- Does Mohan Viswanathan accept Medicare?
- Mohan Viswanathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mohan Viswanathan's NPI active?
- Yes — Mohan Viswanathan's NPI (1689898397) is active in the NPPES registry as of the last update on 2024-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.