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MRS. TAMMIE WARREN APRN, CPNP-AC/PC
NPI 1386850667
Nurse Practitioner - Acute Care in Fort Worth, TX

Active since May 15, 2007PECOS Enrolled
1500 COOPER ST, FORT WORTH, TX 76104(682) 885-4007(682) 885-3914 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 1, 2026, Aug 24, 2026, Mar 10, 2020 (3 updates tracked since 2020).

About Mrs. Tammie Warren Aprn, Cpnp-ac/pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. TAMMIE WARREN APRN, CPNP-AC/PC (NPI 1386850667) is an individual acute care provider in Fort Worth, Texas, licensed in Texas (AP114957) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1386850667
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameMRS. TAMMIE WARRENCredential: APRN, CPNP-AC/PC
Location Address1500 COOPER STFort Worth, TX 76104-2710
Mailing AddressPo Box 733784Dallas, TX 75373-3784 · (682) 885-6483 · Fax (682) 885-3113
Phone(682) 885-4007
Fax(682) 885-3914
Sole ProprietorNo
Enumeration DateMay 15, 2007
Last NPPES UpdateSeptember 1, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 1, 2026
✔ NPI 1386850667 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in TX · AP114957
Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License 700730 (TX)
1500 COOPER ST, Fort Worth, TX 76104
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Harbor Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Tammie Warren Aprn, Cpnp-ac/pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Tammie Warren reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cook Children's Physician Network
Same address
Developmental - Behavioral Pediatrics
1500 COOPER ST
Fort Worth, TX 76104
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Cook Childrens Physician Network
  • 1,186 clinicians in this Medicare group
NPI 1548230923 (682) 303-9200
Surgeons Who Only Care For Kids, PA
154 mi
Surgery
1301 MEDICAL PKWY, SUITE 200
Cedar Park, TX 78613
  • Reassigned Medicare billing, Texas enrollment
  • 33 clinicians in this Medicare group
NPI 1386192656 (512) 708-1234

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 76104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$87.20 typical visit price
range $56.47 – $171.07
Typical copayment $21.80 (range $14.11 – $42.76)
Most-billed visit code 99203
Established Patient
$99.68 typical visit price
range $18.18 – $139.68
Typical copayment $24.92 (range $4.54 – $34.92)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

KATRINA L WILLIE-MUSOMA MD
Pediatrics (Neurodevelopmental Disabilities)
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 303-9300
SCHARLYN R HENDERSON LCSW
Social Worker (Clinical)
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-1475
GREGORY BARKER
Pediatrics (Pediatric Cardiology)
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-2140
DR. ELORA PATTANAIK CORBIN M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-2500
SHANE KELLEHER PA-C
Physician Assistant
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-7840
BENJAMIN CRAIG PA-C
Physician Assistant
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-2500
DR. SHAILENDRA DAS D.O.
Pediatrics (Pediatric Pulmonology)
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-6299
JAMES C CUNNINGHAM MD
Pediatrics (Pediatric Pulmonology)
1500 COOPER ST
FORT WORTH, TX 76104
Tarrant County (682) 885-6299

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 Tammie Warren's NPI number?

The NPI number for Tammie Warren is 1386850667. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Where is Tammie Warren located?

Tammie Warren practices at 1500 Cooper St, Fort Worth, TX 76104. The listed phone number is (682) 885-4007.

What is Tammie Warren's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Tammie Warren enrolled in Medicare?

Yes. Tammie Warren is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tammie Warren's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tammie Warren reassigns Medicare benefits to 2 organizations: Cook Children's Physician Network (Fort Worth, TX) and Surgeons Who Only Care For Kids, PA (Cedar Park, 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 Tammie Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tammie Warren accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Harbor Health, Oscar Insurance Company and UnitedHealthcare list Tammie 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 Tammie Warren was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 days 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.