MARK ALEXANDER FONSECA MSN AGPCNP-BC
NPI 1346608726
Nurse Practitioner - Adult Health in Miami, FL
About Mark Alexander Fonseca Msn Agpcnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK ALEXANDER FONSECA MSN AGPCNP-BC (NPI 1346608726) is an individual adult health provider in Miami, Florida, licensed in Florida (ARNP9309582) and active in the NPI registry since February 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 2
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
Mark Alexander Fonseca Msn Agpcnp-bc 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 Mark Fonseca reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Miami, FL 33137
- Reassigned Medicare billing, Florida enrollment
- 53 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33184 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mark Fonseca's NPI number?
The NPI number for Mark Fonseca is 1346608726. It was assigned to this individual provider in the NPPES registry on February 1, 2016.
Where is Mark Fonseca located?
Mark Fonseca practices at 51 SW 134th Ct, Miami, FL 33184. The listed phone number is (786) 493-6556.
What is Mark Fonseca's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Mark Fonseca enrolled in Medicare?
Yes. Mark Fonseca 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 Mark Fonseca's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Fonseca reassigns Medicare benefits to Miami Jewish Health Systems, Inc. (Miami, FL). 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 Mark Fonseca's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Fonseca was last updated on February 1, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Mark Alexander Fonseca, MSN AGPCNP-BC · NPI 1346608726
Adult Health physician in Miami, Florida. Individual provider, active in the CMS NPPES registry since February 1, 2016.
## Identity
- **NPI:** 1346608726 (Entity type: Individual)
- **Enumerated:** February 1, 2016
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** ARNP9309582 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 51 SW 134TH CT, Miami, FL 33184-1177
- **Phone:** (786) 493-6556
## 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:** Miami Jewish Health Systems, Inc. (NPI 1821093451, Miami, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** February 1, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1346608726) · Data from the CMS NPPES public registry.