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DR. ALICIA MARIE DIAZ-THOMAS MD
NPI 1093807638
Pediatrics - Pediatric Endocrinology in Memphis, TN

Active since September 29, 2006PECOS Enrolled
51 N DUNLAP ST, SUITE 230, MEMPHIS, TN 38105(901) 347-8439 Get Directions Write a Review

NPPES record last updated: October 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 8, 2025, Jun 27, 2016 (2 updates tracked since 2016).

About Dr. Alicia Marie Diaz-thomas Md NPPES

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

DR. ALICIA MARIE DIAZ-THOMAS MD (NPI 1093807638) is an individual pediatric endocrinology provider in Memphis, Tennessee, licensed in Tennessee (47280) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1997).

NPPES Registry Identity

NPI1093807638
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameDR. ALICIA MARIE DIAZ-THOMASCredential: MD
Location Address51 N DUNLAP ST, SUITE 230Memphis, TN 38105-4625
Mailing Address1155 Mill St # M14Reno, NV 89502-1576 · (775) 982-5262
Phone(901) 347-8439
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 1997
Enumeration DateSeptember 29, 2006
Last NPPES UpdateOctober 8, 20252 updates tracked since enumeration
NPPES CertifiedOctober 8, 2025
✔ NPI 1093807638 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in TN · 47280
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD024166 (LA)
Also ListedPediatricsTaxonomy 208000000X · License 024166 (LA)
51 N DUNLAP ST, Memphis, TN 38105
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Other Names 1

Former Name (1)Alicia Diaz Md

Other Identifiers 2

Medicaid1487864LA
Medicaid250040529NV

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Cigna Healthcare.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. Alicia Marie Diaz-thomas Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1658549654
PECOS Enrollment IDI20251014002519
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 Alicia Diaz-thomas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ut Lebonheur Pediatric Specialists, Inc.
0.3 mi
Pediatrics
848 ADAMS AVE.
Memphis, TN 38103
  • Reassigned Medicare billing, Tennessee enrollment
  • 582 clinicians in this Medicare group
NPI 1093024101 (901) 287-7337
Community Care Services LLC
1,628 mi
Internal Medicine
1343 NEWLANDS DR W
Fernley, NV 89408
  • Reassigned Medicare billing, Nevada enrollment
  • 735 clinicians in this Medicare group
NPI 1851862288 (775) 985-5000

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 38105 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
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.

SWETHA GANNARAPU
Student in an Organized Health Care Education/Training Program
51 N DUNLAP ST
MEMPHIS, TN 38105
Shelby County (901) 287-7337
DR. LINDA K MYERS MD
Pediatrics (Pediatric Rheumatology)
51 N DUNLAP ST
MEMPHIS, TN 38105
Shelby County (901) 287-7337
DR. TONIA ELIZABETH GARDNER M.D.
Pediatrics (Pediatric Pulmonology)
51 N DUNLAP ST, STE. 400
MEMPHIS, TN 38105
Shelby County (901) 287-7337
SARAH MEGAN LANE MD
Pediatrics (Developmental - Behavioral Pediatrics)
51 N DUNLAP ST
MEMPHIS, TN 38105
Shelby County (901) 287-7337
NEIL CHANDRAKANT TAILOR M.D.
Internal Medicine (Interventional Cardiology)
51 N DUNLAP ST
MEMPHIS, TN 38105
Shelby County (901) 287-7337
JESSICA MUELLER
Dietitian, Registered (Nutrition, Pediatric)
51 N DUNLAP ST
MEMPHIS, TN 38105
Shelby County (901) 426-8644
AMANDA LEE SCOTT AU.D.
Audiologist
51 N DUNLAP ST
MEMPHIS, TN 38105
Shelby County (901) 287-6645
DR. ALI MIRZA ONDER M.D.
Pediatrics (Pediatric Nephrology)
51 N DUNLAP ST, STE. 400
MEMPHIS, TN 38105
Shelby County (901) 287-7337

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 Alicia Diaz-thomas's NPI number?

The NPI number for Alicia Diaz-thomas is 1093807638. It was assigned to this individual provider in the NPPES registry on September 29, 2006. The provider is also known as Alicia Diaz MD.

Where is Alicia Diaz-thomas located?

Alicia Diaz-thomas practices at 51 N Dunlap St Suite 230, Memphis, TN 38105. The listed phone number is (901) 347-8439.

What is Alicia Diaz-thomas's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Alicia Diaz-thomas enrolled in Medicare?

Yes. Alicia Diaz-thomas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alicia Diaz-thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alicia Diaz-thomas reassigns Medicare benefits to 2 organizations: Ut Lebonheur Pediatric Specialists, Inc. (Memphis, TN) and Community Care Services LLC (Fernley, NV). 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 Alicia Diaz-thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alicia Diaz-thomas accept?

Health plans from Ambetter from Arizona Complete Health and Cigna Healthcare list Alicia Diaz-thomas 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 Alicia Diaz-thomas was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.