ADAM BRZESZKIEWICZ PHARMD.
NPI 1720911175
Pharmacist - Oncology in Austin, TX

NPI Status: Active since June 05, 2026

Contact Information

5251 W HIGHWAY 290
AUSTIN, TX
ZIP 78735
Phone: (512) 654-3400

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  • Individual
  • Male
  • Pharmacist
  • Oncology

About ADAM BRZESZKIEWICZ

This page provides the complete NPI Profile along with additional information for Adam Brzeszkiewicz, a provider established in Austin, Texas with a medical specialization in Pharmacist, focusing in oncology . The healthcare provider is registered in the NPI registry with number 1720911175 assigned on June 2026. The practitioner's primary taxonomy code is 1835X0200X with license number 64394 (TX). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1720911175
Provider Name
ADAM BRZESZKIEWICZ PHARMD.
Gender
Male
Entity Type
Individual
Location Address
5251 W HIGHWAY 290 AUSTIN, TX 78735
Location Phone
(512) 654-3400
Mailing Address
5251 W HIGHWAY 290 AUSTIN, TX 78735
Mailing Phone
(512) 654-3400
Is Sole Proprietor?
No
Enumeration Date
06-05-2026
Last Update Date
06-05-2026
Code Navigator

A pharmacist like Adam Brzeszkiewicz fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

Location Map

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

Pharmacist Oncology

Taxonomy Code
1835X0200X
Type
Pharmacy Service Providers
License No.
64394
License State
TX
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in developing, recommending, implementing, monitoring, and modifying pharmacotherapeutic plans to optimize outcomes in patients with malignant diseases.

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NPI 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 1720911175, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
1
Unchanged
Pos 7
1
Doubled → 2
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 2 → 4 9 → 18 → 9 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 1 + 8 + 1 + 2 + 1 + 1 + 4 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1720911175.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Internal Medicine
5251 W HIGHWAY 290
AUSTIN, TX 78735
Surgery (Vascular Surgery)
5251 W HIGHWAY 290
AUSTIN, TX 78735
Internal Medicine
5251 W HIGHWAY 290
AUSTIN, TX 78735
Surgery
5251 W HIGHWAY 290
AUSTIN, TX 78735
Anesthesiologist Assistant
5251 W HIGHWAY 290
AUSTIN, TX 78735
Otolaryngology
5251 W HIGHWAY 290
AUSTIN, TX 78735
Nurse Practitioner (Family)
5251 W HIGHWAY 290
AUSTIN, TX 78735
Physician Assistant
5251 W HIGHWAY 290
AUSTIN, TX 78735
Physician Assistant
5251 W HIGHWAY 290
AUSTIN, TX 78735
Orthopaedic Surgery
5251 W HIGHWAY 290
AUSTIN, TX 78735
Internal Medicine (Cardiovascular Disease)
5251 W HIGHWAY 290
AUSTIN, TX 78735
Podiatrist
5251 W HIGHWAY 290
AUSTIN, TX 78735
Surgery
5251 W HIGHWAY 290
AUSTIN, TX 78735
Durable Medical Equipment & Medical Supplies
5251 W HIGHWAY 290
AUSTIN, TX 78735
Colon & Rectal Surgery
5251 W HIGHWAY 290
AUSTIN, TX 78735

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720911175, enumerated as an "individual" on June 05, 2026.

The provider is located at 5251 W HIGHWAY 290 AUSTIN, TX 78735 and the phone number is (512) 654-3400.

Pharmacist with taxonomy code 1835X0200X and a focus in Oncology.