HOWARD EISENBERG
NPI 1841572559
Internal Medicine - Pulmonary Disease in Cape Coral, FL
About Howard Eisenberg NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOWARD EISENBERG (NPI 1841572559) is a healthcare organization registered as a pulmonary disease in Cape Coral, Florida and active in the NPI registry since September 2011. The organization lists Kim Commins, Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Howard Eisenberg is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
282Medicare enrollment records show 282 clinicians reassign Medicare billing to Howard Eisenberg, which bills Medicare for the services they deliver. Of these, 53 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 19
Nearest to this location (20)
See all 282Fort Myers, FL 33907
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 21st Century Oncology LLC's NPI number?
The NPI number for 21st Century Oncology LLC is 1841572559. It was assigned to this organization in the NPPES registry on September 20, 2011. The provider is doing business as Howard Eisenberg.
Where is 21st Century Oncology LLC located?
21st Century Oncology LLC is located at 1031 SE 9th Pl Unit 2, Cape Coral, FL 33990. The listed phone number is (239) 573-8448.
What is 21st Century Oncology LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is 21st Century Oncology LLC enrolled in Medicare?
Yes. 21st Century Oncology LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through 21st Century Oncology LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 282 clinicians in 19 Medicare specialties reassign their Medicare billing to 21st Century Oncology LLC. A 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 the clinician's services. The largest specialties are Urology (86), Nurse Practitioner (56) and Radiation Oncology (53). Of these, 53 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does 21st Century Oncology LLC accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list 21st Century Oncology LLC 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.
When was this NPI record last updated?
The NPPES record for 21st Century Oncology LLC was last updated on July 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Howard Eisenberg · NPI 1841572559
Pulmonary Disease organization in Cape Coral, Florida. Organization record, active in the CMS NPPES registry since September 20, 2011.
## Identity
- **NPI:** 1841572559 (Entity type: Organization)
- **Enumerated:** September 20, 2011
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **Legal business name:** 21st Century Oncology Llc
- **Organization subpart:** Yes (part of Radiation Therapy Services Inc)
- **Authorized official:** Kim Commins, CEO
## Practice location
- **Address:** 1031 SE 9TH PL, UNIT 2, Cape Coral, FL 33990-3003
- **Phone:** (239) 573-8448 · **Fax:** (239) 573-8604
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 282 clinicians in 19 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Urology (86), Nurse Practitioner (56), Radiation Oncology (53); 53 practice within 10 miles; [full list](https://npiprofile.com/npi/1841572559/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 12, 2019
- **Other identifiers:** Other CE7138 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1841572559) · Data from the CMS NPPES public registry.