Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ALIX LAYA TROMBLAY MD
NPI 1740869791
Hospitalist in Lubbock, TX

Active since April 06, 2021
4015 22ND PL, LUBBOCK, TX 79410(806) 725-6000(806) 723-7753 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 16, 2026, Jul 10, 2026, Apr 7, 2021 (3 updates tracked since 2021).

  • Individual
  • Female
  • Hospitalist

About ALIX TROMBLAY

This page provides the complete NPI Profile along with additional information for Alix Tromblay, a provider established in Lubbock, Texas with a medical specialization in Hospitalist. The healthcare provider is registered in the NPI registry with number 1740869791 assigned on April 2021. The practitioner's primary taxonomy code is 208M00000X with license number V2303 (TX). The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1740869791
Provider Name
DR. ALIX LAYA TROMBLAY MD
Gender
Female
Entity Type
Individual
Location Address
4015 22ND PL LUBBOCK, TX 79410
Location Phone
(806) 725-6000
Location Fax
(806) 723-7753
Mailing Address
5205 AUBURN ST LUBBOCK, TX 79416
Mailing Phone
(337) 290-6987
Is Sole Proprietor?
No
Enumeration Date
04-06-2021
Last Update Date
07-16-2026
Code Navigator

Location Map

Secondary Locations

  • 602 Indiana Ave
    Lubbock, TX 79415
    (806) 743-7337

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Hospitalist

Taxonomy Code
208M00000X
Type
Allopathic & Osteopathic Physicians
License No.
V2303
License State
TX
Taxonomy Description
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208000000XAllopathic & Osteopathic Physicians

Pediatrics

V2303 (TX)

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NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1740869791, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
4
Doubled → 8
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 4 → 8 8 → 16 → 7 9 → 18 → 9 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 7 + 8 + 0 + 1 + 6 + 6 + 1 + 8 + 7 + 1 + 8 + 24 = 79

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 79 is 80. The difference is the calculated check digit.

80 - 79 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1740869791.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Hematology & Oncology)
4015 22ND PL
LUBBOCK, TX 79410
Physician Assistant
4015 22ND PL
LUBBOCK, TX 79410
Nurse Practitioner (Neonatal)
4015 22ND PL
LUBBOCK, TX 79410
Nurse Practitioner (Neonatal, Critical Care)
4015 22ND PL
LUBBOCK, TX 79410
Nurse Practitioner (Neonatal)
4015 22ND PL
LUBBOCK, TX 79410
Hospitalist
4015 22ND PL
LUBBOCK, TX 79410
Pediatrics
4015 22ND PL
LUBBOCK, TX 79410
Hospitalist
4015 22ND PL
LUBBOCK, TX 79410
Pediatrics
4015 22ND PL
LUBBOCK, TX 79410
Hospitalist
4015 22ND PL
LUBBOCK, TX 79410
Pediatrics
4015 22ND PL
LUBBOCK, TX 79410
Pediatrics
4015 22ND PL
LUBBOCK, TX 79410
Pediatrics (Pediatric Emergency Medicine)
4015 22ND PL
LUBBOCK, TX 79410
Nurse Practitioner (Pediatrics)
4015 22ND PL
LUBBOCK, TX 79410
Registered Nurse (Pediatrics)
4015 22ND PL
LUBBOCK, TX 79410
Pediatrics (Neonatal-Perinatal Medicine)
4015 22ND PL
LUBBOCK, TX 79410
Nurse Practitioner (Pediatrics)
4015 22ND PL
LUBBOCK, TX 79410
Registered Nurse (Emergency)
4015 22ND PL
LUBBOCK, TX 79410
Marriage & Family Therapist
4015 22ND PL
LUBBOCK, TX 79410
Counselor (Mental Health)
4015 22ND PL
LUBBOCK, TX 79410

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1740869791, enumerated as an "individual" on April 06, 2021.

The provider is located at 4015 22ND PL LUBBOCK, TX 79410 and the phone number is (806) 725-6000.

Hospitalist with taxonomy code 208M00000X.