TAMMY YARNELL WARREN APRN
NPI 1538794565
Nurse Practitioner - Family in Portsmouth, VA
About Tammy Yarnell Warren Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMMY YARNELL WARREN APRN (NPI 1538794565) is an individual family provider in Portsmouth, Virginia, licensed in Virginia (0024182464) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tammy Yarnell Warren Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Tammy Warren reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Murrells Inlet, SC 29576
- Reassigned Medicare billing, South Carolina enrollment
- 290 clinicians in this Medicare group
Beaufort, SC 29907
- Reassigned Medicare billing, South Carolina enrollment
- 200 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 23708 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.
PORTSMOUTH, VA 23708
PORTSMOUTH, VA 23708
PORTSMOUTH, VA 23708
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 Warren's NPI number?
The NPI number for Tammy Warren is 1538794565. It was assigned to this individual provider in the NPPES registry on March 10, 2020.
Where is Tammy Warren located?
Tammy Warren practices at 620 John Paul Jones Cir, Portsmouth, VA 23708. The listed phone number is (757) 953-5000.
What is Tammy Warren's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Tammy Warren enrolled in Medicare?
Yes. Tammy Warren is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Tammy Warren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Warren reassigns Medicare benefits to 2 organizations: Palmetto Primary Care Physicians, LLC (Murrells Inlet, SC) and Lowcountry Urgent Care LLC (Beaufort, SC). 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 Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tammy Warren accept?
Health plans from First Choice Next list Tammy Warren 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 Tammy Warren was last updated on May 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Tammy Yarnell Warren, APRN · NPI 1538794565
Family physician in Portsmouth, Virginia. Individual provider, active in the CMS NPPES registry since March 10, 2020.
## Identity
- **NPI:** 1538794565 (Entity type: Individual)
- **Enumerated:** March 10, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 0024182464 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 620 JOHN PAUL JONES CIR, Portsmouth, VA 23708-2111
- **Phone:** (757) 953-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Palmetto Primary Care Physicians, LLC (NPI 1043808132, Murrells Inlet, SC); Lowcountry Urgent Care LLC (NPI 1326364100, Beaufort, SC) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 8, 2023
- **Other identifiers:** Medicaid NP6754 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1538794565) · Data from the CMS NPPES public registry.