DR. MARK STEPHEN MCTAMMANY M.D.
NPI 1265434211
Obstetrics & Gynecology - Gynecology in Melbourne, FL
About Dr. Mark Stephen Mctammany M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK STEPHEN MCTAMMANY M.D. (NPI 1265434211) is an individual gynecology provider in Melbourne, Florida, licensed in Florida (ME0072191) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark Stephen Mctammany M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Mctammany reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Melbourne, FL 32935
- Reassigned Medicare billing, Florida enrollment
- 254 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 32901 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MELBOURNE, FL 32901
MELBOURNE, FL 32901
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 Mctammany's NPI number?
The NPI number for Mark Mctammany is 1265434211. It was assigned to this individual provider in the NPPES registry on June 2, 2005.
Where is Mark Mctammany located?
Mark Mctammany practices at 1315 Valentine St, Melbourne, FL 32901. The listed phone number is (321) 768-7677.
What is Mark Mctammany's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is Mark Mctammany enrolled in Medicare?
Yes. Mark Mctammany is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Mctammany's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mctammany reassigns Medicare benefits to Steward Medical Group, Inc (Melbourne, 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 Mctammany'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 Mctammany was last updated on May 18, 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.