Rajeshwari Ayyar, MD
NPI 1871670703 · Medical Oncology Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rajeshwari Ayyar, MD is a Medical Oncology Physician provider in San Jose, CA (NPI 1871670703).
Provider details
- NPI number
- 1871670703
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- C42666 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
45 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 17 | $117 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 15 | $173 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $102 |
Typical Medicare-allowed amounts for these services range $102–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 710 Lawrence ExpySanta Clara, CA 95051-5173Phone: (408) 851-1000
Registry dates
- Enumerated
- 2006-10-31
- Last updated
- 2024-04-15
- Certified
- 2024-04-15
Frequently asked questions
- What is Rajeshwari Ayyar's NPI number?
- Rajeshwari Ayyar's National Provider Identifier (NPI) is 1871670703, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rajeshwari Ayyar's specialty?
- Rajeshwari Ayyar is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Rajeshwari Ayyar located?
- Rajeshwari Ayyar's practice location on file with NPPES is 2589 Samaritan Dr, San Jose, CA 95124-4102.
- What is Rajeshwari Ayyar's phone number?
- The practice phone number listed in the NPPES registry for Rajeshwari Ayyar is (408) 426-4900.
- Does Rajeshwari Ayyar accept Medicare?
- Rajeshwari Ayyar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rajeshwari Ayyar's NPI active?
- Yes — Rajeshwari Ayyar's NPI (1871670703) is active in the NPPES registry as of the last update on 2024-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.