MSMC OF THE FLORIDA KEYS, LLC
NPI 1194455881
Internal Medicine in Key West, FL
About Msmc Of The Florida Keys, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MSMC OF THE FLORIDA KEYS, LLC (NPI 1194455881) is a healthcare organization registered as an internal medicine in Key West, Florida and active in the NPI registry since June 2022. The organization holds a CLIA Waiver certificate valid through February 12, 2028 and lists Mervyn Mills, Sr Vp Of Finance, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 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)
Msmc Of The Florida Keys, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
11Medicare enrollment records show 11 clinicians reassign Medicare billing to Msmc Of The Florida Keys, LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (11)
Key West, FL 33040
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA 2
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 10D2338628
Msmc Of The Florida Keys LLC · Key West, FLCertificate of Waiver 10D2312603
Msmc Of The Florida Keys, LLC · Key West, FLFrequently 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 Msmc Of The Florida Keys, LLC's NPI number?
The NPI number for Msmc Of The Florida Keys, LLC is 1194455881. It was assigned to this organization in the NPPES registry on June 15, 2022.
Where is Msmc Of The Florida Keys, LLC located?
Msmc Of The Florida Keys, LLC is located at 2505 Flagler Ave, Key West, FL 33040. The listed phone number is (305) 295-6767.
What is Msmc Of The Florida Keys, LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Msmc Of The Florida Keys, LLC enrolled in Medicare?
Yes. Msmc Of The Florida Keys, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Msmc Of The Florida Keys, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 4 Medicare specialties reassign their Medicare billing to Msmc Of The Florida Keys, 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 Emergency Medicine (3), Family Practice (3) and Nurse Practitioner (3). Of these, 2 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Msmc Of The Florida Keys, LLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 10D2338628) is associated with this NPI, valid through February 12, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Msmc Of The Florida Keys, LLC accept?
Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Msmc Of The Florida Keys, 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 Msmc Of The Florida Keys, LLC was last updated on March 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Msmc Of The Florida Keys, Llc · NPI 1194455881
Internal Medicine organization in Key West, Florida. Organization record, active in the CMS NPPES registry since June 15, 2022.
## Identity
- **NPI:** 1194455881 (Entity type: Organization)
- **Enumerated:** June 15, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Also known as:** MSMC OF THE FLORIDA KEYS, LLC (Doing Business As)
- **Organization subpart:** Yes (part of Mount Sinai Medical Center, Florida)
- **Authorized official:** Mervyn Mills, SR VP OF FINANCE
## Practice location
- **Address:** 2505 FLAGLER AVE, Key West, FL 33040-3934
- **Phone:** (305) 295-6767 · **Fax:** (305) 602-8455
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 11 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (3), Family Practice (3), Nurse Practitioner (3); 2 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 9, 2026
- **CLIA laboratory certificates:** 2 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1194455881) · Data from the CMS NPPES public registry.