MS. TAMMY E CASTRO ARNP
NPI 1164665972
Nurse Practitioner - Family in St Petersburg, FL
About Ms. Tammy E Castro Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. TAMMY E CASTRO ARNP (NPI 1164665972) is an individual family provider in St Petersburg, Florida, licensed in Florida (363LF0000X) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
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
Ms. Tammy E Castro Arnp 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 Reassignments
4Medicare enrollment records show Tammy Castro reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nashville, TN 37219
- Reassigned Medicare billing, Florida and Georgia enrollments
- 85 clinicians in this Medicare group
Nashville, TN 37219
- Reassigned Medicare billing, Massachusetts enrollment
- 125 clinicians in this Medicare group
Houston, TX 77096
- Reassigned Medicare billing, Florida enrollment
- 15 clinicians in this Medicare group
Abilene, TX 79606
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Regional Physician Services Of Texas PA
- 396 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33713 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.
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 Tammy Castro's NPI number?
The NPI number for Tammy Castro is 1164665972. It was assigned to this individual provider in the NPPES registry on April 8, 2009.
Where is Tammy Castro located?
Tammy Castro practices at 1839 Central Ave, St Petersburg, FL 33713. The listed phone number is (727) 322-1054.
What is Tammy Castro's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Tammy Castro enrolled in Medicare?
Yes. Tammy Castro 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 organizations bill Medicare for Tammy Castro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Castro reassigns Medicare benefits to 4 organizations: Community Care Health Network LLC (Nashville, TN), Matrix Medical Plus (Nashville, TN), Gold Diagnostics Corp (Houston, TX) and Regional Physician Services Of Texas, P.A. (Abilene, TX). Each 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 Tammy Castro'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 Tammy Castro was last updated on January 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Ms. Tammy E Castro, ARNP · NPI 1164665972
Family physician in St Petersburg, Florida. Individual provider, active in the CMS NPPES registry since April 8, 2009.
## Identity
- **NPI:** 1164665972 (Entity type: Individual)
- **Enumerated:** April 8, 2009
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 363LF0000X (Florida)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1839 CENTRAL AVE, St Petersburg, FL 33713-8900
- **Phone:** (727) 322-1054
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Community Care Health Network LLC (NPI 1619368842, Nashville, TN); Matrix Medical Plus (NPI 1376973461, Nashville, TN); Gold Diagnostics Corp (NPI 1346824554, Houston, TX); Regional Physician Services Of Texas, P.A. (NPI 1043529944, Abilene, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** January 15, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1164665972) · Data from the CMS NPPES public registry.