Quick answers
- Does Karthik Giridhar accept Medicare assignment?
- Yes. Medicare's clinician data says Karthik Giridhar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Karthik Giridhar see?
- In 2024, CMS data shows 470 Original Medicare patients and 86,736 services for Karthik Giridhar. This counts Original Medicare only and measures volume, not quality.
- What is Karthik Giridhar's NPI number?
- 1962778183. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Karthik Giridhar, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 470 |
|---|---|
| Services billed to Medicare | 86,736 |
| Different services or procedures | 132 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)10,804 services
- Injection, fosaprepitant, 1 mg (J1453)10,200 services
- Injection, paclitaxel, 1 mg (J9267)8,149 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)6,481 services
- Injection, oxaliplatin, 0.5 mg (J9263)4,340 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure64%
- High cholesterol60%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)57%
- Arthritis33%
- Chronic kidney disease31%
- Anxiety24%
Hospitals where Karthik Giridhar works
Medicare's Facility Affiliation Data lists Karthik Giridhar at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mayo Clinic Hospital RochesterRochester, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240010
Practice locations
Addresses where Karthik Giridhar is enrolled with Medicare (CMS data updated October 2, 2026).
- 200 1st St SWRochester, MN 55905 (507) 284‑2511
Group practices
Medicare enrollment lists Karthik Giridhar as a member of this group (CMS data updated October 2, 2026).
- Mayo Clinic4,956 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematology/Oncologyalso
Other oncologists in Rochester
Clinicians with the same Medicare primary specialty in Rochester, MN — not a recommendation.
Other clinicians in Mayo Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Pittsburgh School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1962778183 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians