MELISSA WASHKOWIAK PHARMD
NPI 1356288294
Pharmacist - Pediatrics in Chicago, IL

NPI Status: Active since April 29, 2026

Contact Information

225 E CHICAGO AVE # 74
CHICAGO, IL
ZIP 60611
Phone: (312) 227-4151

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  • Individual
  • Female
  • Pharmacist
  • Pediatrics

About MELISSA WASHKOWIAK

This page provides the complete NPI Profile along with additional information for Melissa Washkowiak, a provider established in Chicago, Illinois with a medical specialization in Pharmacist, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1356288294 assigned on April 2026. The practitioner's primary taxonomy code is 1835P0200X with license number 051286808 (IL). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1356288294
Provider Name
MELISSA WASHKOWIAK PHARMD
Gender
Female
Entity Type
Individual
Location Address
225 E CHICAGO AVE # 74 CHICAGO, IL 60611
Location Phone
(312) 227-4151
Mailing Address
3504 N SOUTHPORT AVE APT 2S CHICAGO, IL 60657
Is Sole Proprietor?
No
Enumeration Date
04-29-2026
Last Update Date
04-29-2026
Code Navigator

A pharmacist like Melissa Washkowiak 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 Pediatrics

Taxonomy Code
1835P0200X
Type
Pharmacy Service Providers
License No.
051286808
License State
IL
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in the delivery of patient care services by pharmacists that ensures the safe and effective use of medications for all children from neonates through adolescents.

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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 1356288294, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
3
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
6
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
2
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 5 → 10 → 1 2 → 4 8 → 16 → 7 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 0 + 6 + 4 + 8 + 1 + 6 + 2 + 1 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1356288294.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1356288294, enumerated as an "individual" on April 29, 2026.

The provider is located at 225 E CHICAGO AVE # 74 CHICAGO, IL 60611 and the phone number is (312) 227-4151.

Pharmacist with taxonomy code 1835P0200X and a focus in Pediatrics.