DR. NATHAN I VISWESHWAR M.D.
NPI 1033214325
Internal Medicine - Hematology & Oncology in Tampa, FL
About Dr. Nathan I Visweshwar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATHAN I VISWESHWAR M.D. (NPI 1033214325) is an individual hematology & oncology provider in Tampa, Florida, licensed in Florida (ME97021) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Baptist Health Paducah, and is a graduate of Other (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Nathan I Visweshwar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Nathan Visweshwar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Elizabethtown, KY 42701
- Reassigned Medicare billing, Kentucky enrollment
- 967 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baptist Health Paducah
Acute Care Hospitals · Paducah, KYWheeling Hospital, Inc
Acute Care Hospitals · Wheeling, WVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TAMPA, FL 33612
TAMPA, FL 33612
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Nathan Visweshwar's NPI number?
The NPI number for Nathan Visweshwar is 1033214325. It was assigned to this individual provider in the NPPES registry on September 13, 2006.
Where is Nathan Visweshwar located?
Nathan Visweshwar practices at 13330 Usf Laurel Dr, Tampa, FL 33612. The listed phone number is (813) 974-2201.
What is Nathan Visweshwar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Nathan Visweshwar enrolled in Medicare?
Yes. Nathan Visweshwar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Nathan Visweshwar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Visweshwar reassigns Medicare benefits to Baptist Health Medical Group Inc (Elizabethtown, KY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nathan Visweshwar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Visweshwar accept?
Health plans from Anthem Blue Cross and Blue Shield and Molina Healthcare list Nathan Visweshwar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Nathan Visweshwar affiliated with any hospitals?
According to CMS data, Nathan Visweshwar is affiliated with Baptist Health Paducah and Wheeling Hospital, Inc.
When was this NPI record last updated?
The NPPES record for Nathan Visweshwar was last updated on March 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Nathan I Visweshwar, M.D. · NPI 1033214325
Hematology & Oncology physician in Tampa, Florida. Individual provider, active in the CMS NPPES registry since September 13, 2006.
## Identity
- **NPI:** 1033214325 (Entity type: Individual)
- **Enumerated:** September 13, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** ME97021 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 13330 USF LAUREL DR, Tampa, FL 33612-6601
- **Phone:** (813) 974-2201
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Baptist Health Medical Group Inc (NPI 1093338527, Elizabethtown, KY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1983
## Record status
- **NPPES last updated:** March 30, 2021
- **Other identifiers:** Medicaid 276782100 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1033214325) · Data from the CMS NPPES public registry.