JANE LITWAK
NPI 1679428502
Pharmacist - Critical Care in Phoenix, AZ

NPI Status: Active since March 04, 2026

Contact Information

250 E DUNLAP AVE
PHOENIX, AZ
ZIP 85020
Phone: (602) 780-2040

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  • Individual
  • Female
  • Pharmacist
  • Critical Care

About JANE LITWAK

This page provides the complete NPI Profile along with additional information for Jane Litwak, a provider established in Phoenix, Arizona with a medical specialization in Pharmacist, focusing in critical care . The healthcare provider is registered in the NPI registry with number 1679428502 assigned on March 2026. The practitioner's primary taxonomy code is 1835C0205X with license number S023172 (AZ). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1679428502
Provider Name
JANE LITWAK
Gender
Female
Entity Type
Individual
Location Address
250 E DUNLAP AVE PHOENIX, AZ 85020
Location Phone
(602) 780-2040
Mailing Address
301 W MCLELLAN BLVD PHOENIX, AZ 85013
Is Sole Proprietor?
Yes
Enumeration Date
03-04-2026
Last Update Date
03-04-2026
Code Navigator

A pharmacist like Jane Litwak 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 Critical Care

Taxonomy Code
1835C0205X
Type
Pharmacy Service Providers
License No.
S023172
License State
AZ
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in the delivery of patient care services by pharmacists, as integral members of interprofessional teams, working to ensure the safe and effective use of medications in critically ill patients.

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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 1679428502, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
2
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 7 → 14 → 5 4 → 8 8 → 16 → 7 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 8 + 2 + 1 + 6 + 5 + 0 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1679428502.

Other Providers at the Same Location


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

Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Nurse Practitioner (Critical Care Medicine)
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE, JOHN C LINCOLN HOSPITAL, ED
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE, EMERGENCY MEDICINE OFFICE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Anesthesiology
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020
Emergency Medicine
250 E DUNLAP AVE
PHOENIX, AZ 85020

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679428502, enumerated as an "individual" on March 04, 2026.

The provider is located at 250 E DUNLAP AVE PHOENIX, AZ 85020 and the phone number is (602) 780-2040.

Pharmacist with taxonomy code 1835C0205X and a focus in Critical Care.