Madhav Vissa
Hematology/Oncology · Pediatric Medicine (CMS) · Oakland, CA
At a glance
747 52Nd Street, Oakland, CA 94609
NPPES record updated Aug 6, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
747 52Nd StreetOakland, CA 94609
Additional reported practice locations
995 Potrero AvenueBldg. 80 Ward 86
San Francisco, CA 94110
Phone: 6282062407 4401 Penn Ave
Aob Suite 5400
Pittsburgh, PA 152241334
Phone: 4126925285
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2014
- CMS specialties
- Hematology/Oncology · Pediatric Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Ucsf Benioff Children's Hospital Oakland Oakland, CA
- Zuckerberg San Francisco General Hosp & Trauma Ctr San Francisco, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Consulting fee | $5,000.00 |
| Travel and lodging | $998.30 |
| Food and beverage | $496.16 |
Reporting companies
| Company | Amount |
|---|---|
| AGIOS PHARMACEUTICALS, INC. | $6,293.16 |
| NOVO NORDISK INC | $124.81 |
| PFIZER INC. | $76.49 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Hematology/Oncology · Pediatric Medicine (CMS)
- Taxonomy code
- 2080P0207X
- Enumeration date
- Mar 29, 2014
- Record updated
- Aug 6, 2023
More registry details
- Provider type
- Individual · Type 1
Reported taxonomies and licenses
207R00000X
License reported: A154321 CA
207RH0003X
License reported: A154321 CA
2080P0207X · Primary
License reported: A154321 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
747 52Nd StreetOakland, CA 94609
- Phone
- (510) 428-3000
Mailing address
995 POTRERO AVENUEBLDG. 80 WARD 86
SAN FRANCISCO, CA 94110
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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