DR. SARA LYNN FLESZAR PHARM D
NPI 1285583989
Pharmacist - Oncology in Denver, CO
NPI Status: Active since January 26, 2026
Contact Information
717 17TH ST
DENVER, CO
ZIP 80202
Phone: (540) 336-6774
- Individual
- Female
- Pharmacist
- Oncology
About SARA FLESZAR
This page provides the complete NPI Profile along with additional information for Sara Fleszar, a provider established in Denver, Colorado with a medical specialization in Pharmacist, focusing in oncology . The healthcare provider is registered in the NPI registry with number 1285583989 assigned on January 2026. The practitioner's primary taxonomy code is 1835X0200X with license number 0018756 (CO). The provider is registered as an individual and her NPI record was last updated January 2026.
- NPI
- 1285583989
- Provider Name
- DR. SARA LYNN FLESZAR PHARM D
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 717 17TH ST DENVER, CO 80202
- Location Phone
- (540) 336-6774
- Mailing Address
- PO BOX 4174 GYPSUM, CO 81637
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-26-2026
- Last Update Date
- 01-26-2026
- Code Navigator
A pharmacist like Sara Fleszar 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.
- 0018756
- License State
- CO
- 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 1285583989, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 71 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1285583989, enumerated as an "individual" on January 26, 2026.
The provider is located at 717 17TH ST DENVER, CO 80202 and the phone number is (540) 336-6774.
Pharmacist with taxonomy code 1835X0200X and a focus in Oncology.
