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ALLISON J WALKER M.D.
NPI 1518283084
Pediatrics in San Angelo, TX

Active since April 08, 2010PECOS Enrolled
225 E BEAUREGARD AVE, SAN ANGELO, TX 76903(325) 747-2287(325) 747-2279 Get Directions Write a Review

NPPES record last updated: July 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2022, Nov 15, 2017 (2 updates tracked since 2017).

About Allison J Walker M.d. NPPES

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

ALLISON J WALKER M.D. (NPI 1518283084) is an individual pediatrics provider in San Angelo, Texas, licensed in Texas (R3772) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1518283084
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameALLISON J WALKERCredential: M.D.
Location Address225 E BEAUREGARD AVESan Angelo, TX 76903-5920
Mailing Address225 E Beauregard AveSan Angelo, TX 76903-5920 · (325) 747-2287 · Fax (325) 747-2279
Phone(325) 747-2287
Fax(325) 747-2279
Sole ProprietorNo
Enumeration DateApril 8, 2010
Last NPPES UpdateJuly 21, 20252 updates tracked since enumeration
NPPES CertifiedJuly 21, 2025
✔ NPI 1518283084 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in TX · R3772
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
225 E BEAUREGARD AVE, San Angelo, TX 76903
Open in Google Maps ↗

Other Identifiers 2

Medicaid375455801TX
Other8HB630TX · Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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)

Allison J Walker 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 Reassignment

Medicare enrollment records show Allison Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Shannon Clinic
0.1 mi
Family Medicine
120 E BEAUREGARD AVE
San Angelo, TX 76903
  • Reassigned Medicare billing, Texas enrollment
  • 671 clinicians in this Medicare group
NPI 1770587149 (325) 658-1511

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 76903 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.

Other Providers at the Same Location NPPES 11

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

DR. CAROLYN MARIE RILEY MD
Pediatrics
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (253) 481-2287
ELIZABETH L YOUNG MD
Pediatrics
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511
STEPHEN P SAWYER MD
Pediatrics
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511
SAUNDRA E SEIFERT MD
Pediatrics
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511
STACEY L MANION DO
Pediatrics
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511
LOURELL E SUTLIFF MD
Obstetrics & Gynecology
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511
DR. SRIKANTH PODARALLA M.D., M.B.A
Pediatrics
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511
STEPHEN R CAINELLI MD
Obstetrics & Gynecology (Gynecology)
225 E BEAUREGARD AVE
SAN ANGELO, TX 76903
Tom Green County (325) 658-1511

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 Allison Walker's NPI number?

The NPI number for Allison Walker is 1518283084. It was assigned to this individual provider in the NPPES registry on April 8, 2010.

Where is Allison Walker located?

Allison Walker practices at 225 E Beauregard Ave, San Angelo, TX 76903. The listed phone number is (325) 747-2287.

What is Allison Walker's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Allison Walker enrolled in Medicare?

Yes. Allison Walker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Allison Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Allison Walker reassigns Medicare benefits to Shannon Clinic (San Angelo, TX). The 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 Allison Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Allison Walker accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Allison Walker 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 Allison Walker was last updated on July 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.