Sirisha Tummala, MD
NPI 1851755151 · Hematology & Oncology Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sirisha Tummala, MD is a Hematology & Oncology Physician provider in San Mateo, CA (NPI 1851755151).
Provider details
- NPI number
- 1851755151
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 1851755151 (DC)
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 tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
4 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$69 across 2 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
Additional practice locations (3)
- 505 Parnassus AveSan Francisco, CA 94143-2204Phone: (415) 476-1000
- 2500 Pennsylvania Ave NwSuite 5-416Washington, DC 20037-1611Phone: (202) 741-3574
- 1620 W Harrison StChicago, IL 60612-3801Phone: (312) 942-5000
Registry dates
- Enumerated
- 2016-04-12
- Last updated
- 2024-06-20
- Certified
- 2024-06-20
Frequently asked questions
- What is Sirisha Tummala's NPI number?
- Sirisha Tummala's National Provider Identifier (NPI) is 1851755151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sirisha Tummala's specialty?
- Sirisha Tummala is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sirisha Tummala located?
- Sirisha Tummala's practice location on file with NPPES is 218 De Anza Blvd, San Mateo, CA 94402-3913.
- What is Sirisha Tummala's phone number?
- The practice phone number listed in the NPPES registry for Sirisha Tummala is (650) 341-9131.
- Does Sirisha Tummala accept Medicare?
- Sirisha Tummala is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sirisha Tummala's NPI active?
- Yes — Sirisha Tummala's NPI (1851755151) is active in the NPPES registry as of the last update on 2024-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.