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DEREK W GUILLORY M.D.
NPI 1710972880
Emergency Medicine in La Vernia, TX

Active since September 15, 2005Opted out of Medicare · through Oct 1, 2026
202 FM 1346, SUITE 2, LA VERNIA, TX 78121(830) 779-3200(830) 779-3211 Get Directions Write a Review

NPPES record last updated: November 28, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Derek W Guillory M.d. NPPES

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

DEREK W GUILLORY M.D. (NPI 1710972880) is an individual emergency medicine provider in La Vernia, Texas, licensed in Texas (L5751) and active in the NPI registry since September 2005. He has opted out of Medicare through October 1, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1710972880
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDEREK W GUILLORYCredential: M.D.
Location Address202 FM 1346, SUITE 2La Vernia, TX 78121
Mailing Address503 Avenue A, Suite 1118San Antonio, TX 78215-1264 · (210) 468-3042
Phone(830) 779-3200
Fax(830) 779-3211
Sole ProprietorYes
Enumeration DateSeptember 15, 2005
Last NPPES UpdateNovember 28, 2016
✔ NPI 1710972880 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TX · L5751
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
202 FM 1346, La Vernia, TX 78121
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Other Identifiers 6

Medicare PIN611032TX
Medicaid167798105TX
Medicare PINP00177387TX
Medicare PIN8L17415TX
Other8M8130TX · Bcbs
Medicaid167798102TX

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Derek W Guillory M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 1, 2020 through October 1, 2026.

Opt-Out Effective DateOctober 1, 2020
Opt-Out In Effect ThroughOctober 1, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78121 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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.

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 Derek Guillory's NPI number?

The NPI number for Derek Guillory is 1710972880. It was assigned to this individual provider in the NPPES registry on September 15, 2005.

Where is Derek Guillory located?

Derek Guillory practices at 202 Fm 1346 Suite 2, La Vernia, TX 78121. The listed phone number is (830) 779-3200.

What is Derek Guillory's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Derek Guillory enrolled in Medicare?

No. Derek Guillory has opted out of Medicare through October 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Derek Guillory was last updated on November 28, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.