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DR. GERARDO EMMANUEL ALCAZAR M.D.
NPI 1922444280
Internal Medicine in Austin, TX

Active since May 14, 2013PECOS Enrolled
5209 BURNET RD UNIT 200, AUSTIN, TX 78756(512) 537-4898(512) 254-6580 Get Directions Write a Review

NPPES record last updated: December 12, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 12, 2025, Sep 3, 2025, Jun 12, 2025 and 1 more (4 updates tracked since 2016).

About Dr. Gerardo Emmanuel Alcazar M.d. NPPES

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

DR. GERARDO EMMANUEL ALCAZAR M.D. (NPI 1922444280) is an individual internal medicine provider in Austin, Texas, licensed in Texas (T0989) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1922444280
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GERARDO EMMANUEL ALCAZARCredential: M.D.
Location Address5209 BURNET RD UNIT 200Austin, TX 78756-2443
Mailing Address5209 Burnet Rd Unit 200Austin, TX 78756-2443 · (512) 537-4898 · Fax (512) 254-6580
Phone(512) 537-4898
Fax(512) 254-6580
Sole ProprietorYes
Enumeration DateMay 14, 2013
Last NPPES UpdateDecember 12, 20254 updates tracked since enumeration
NPPES CertifiedDecember 12, 2025
✔ NPI 1922444280 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in TX · T0989✔ Licensed in CA · 204536✔ Licensed in NY · 339801✔ Licensed in DC · MD600004839
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5209 BURNET RD UNIT 200, Austin, TX 78756
Open in Google Maps ↗

Secondary Practice Locations 3

Location 11120 E St SEWashington, DC 20003-2232 · Phone (512) 537-4898
Location 22638 Jackson Ave Apt 30DLong Island City, NY 11101-1679 · Phone (512) 537-4898 · Fax (512) 254-6580
Location 31275 N Harper Ave Apt 4West Hollywood, CA 90046-8439 · Phone (832) 388-4499

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gerardo Emmanuel Alcazar M.d. 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 Gerardo Alcazar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Seton Family Of Doctors
3.3 mi
Neurological Surgery
1601 TRINITY ST STOP 704
Austin, TX 78712
  • Reassigned Medicare billing, Texas enrollment
  • 1,188 clinicians in this Medicare group
NPI 1588997233 (512) 324-8300
Duke University Health System, Inc.
1,152 mi
Nurse Anesthetist, Certified Registered
ERWIN RD
Durham, NC 27710
  • Reassigned Medicare billing, North Carolina enrollment
  • 1,482 clinicians in this Medicare group
NPI 1558392977 (919) 684-8111

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 78756 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
$131.95 typical visit price
range $57.88 – $174.00
Typical copayment $32.98 (range $14.47 – $43.50)
Most-billed visit code 99204
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KITWOOD HEALTH PA
Internal Medicine (Geriatric Medicine)
5209 BURNET RD UNIT 200
AUSTIN, TX 78756
Travis County (737) 355-5148

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 Gerardo Alcazar's NPI number?

The NPI number for Gerardo Alcazar is 1922444280. It was assigned to this individual provider in the NPPES registry on May 14, 2013.

Where is Gerardo Alcazar located?

Gerardo Alcazar practices at 5209 Burnet Rd Unit 200, Austin, TX 78756. The listed phone number is (512) 537-4898.

What is Gerardo Alcazar's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gerardo Alcazar enrolled in Medicare?

Yes. Gerardo Alcazar is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gerardo Alcazar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gerardo Alcazar reassigns Medicare benefits to 2 organizations: Seton Family Of Doctors (Austin, TX) and Duke University Health System, Inc. (Durham, NC). 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 Gerardo Alcazar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gerardo Alcazar accept?

Health plans from Blue Cross and Blue Shield of Texas list Gerardo Alcazar 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 Gerardo Alcazar was last updated on December 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.