DR. PHILIP E MAHALIK PHARM.D.
NPI 1942201090
Pharmacist - Pharmacotherapy in Elgin, IL
NPI Status: Active since August 10, 2005
Contact Information
750 S STATE ST
REHAB BLDG # 210
ELGIN, IL
ZIP 60123
Phone: (847) 742-1040
Fax: (847) 742-2614
- Individual
- Male
- Pharmacist
- Pharmacotherapy
About PHILIP MAHALIK
This page provides the complete NPI Profile along with additional information for Philip Mahalik, a provider established in Elgin, Illinois with a medical specialization in Pharmacist, focusing in pharmacotherapy . The healthcare provider is registered in the NPI registry with number 1942201090 assigned on August 2005. The practitioner's primary taxonomy code is 1835P1200X. The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1942201090
- Provider Name
- DR. PHILIP E MAHALIK PHARM.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 750 S STATE ST REHAB BLDG # 210 ELGIN, IL 60123
- Location Phone
- (847) 742-1040
- Location Fax
- (847) 742-2614
- Mailing Address
- 606 MOCKINGBIRD CT ST CHARLES, IL 60175
- Mailing Phone
- (630) 443-9411
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-10-2005
- Last Update Date
- 09-11-2025
- Code Navigator
A pharmacist like Philip Mahalik 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 Pharmacotherapy
- Taxonomy Code
- 1835P1200X
- Type
- Pharmacy Service Providers
- License State
- IL
- Taxonomy Description
- A licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implementing, monitoring, and modifying complex treatment plans, providing advanced level education and consultation, and collaborating with other health professionals in the management of therapy.
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) |
|---|---|---|---|---|
| 1 | 183500000X | Pharmacy Service Providers | Pharmacist | (IL) |
| 2 | 1835P1300X | Pharmacy Service Providers | Pharmacist | (IL) |
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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 1942201090, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
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 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
ELGIN, IL 60123
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1942201090, enumerated as an "individual" on August 10, 2005.
The provider is located at 750 S STATE ST REHAB BLDG # 210 ELGIN, IL 60123 and the phone number is (847) 742-1040.
Pharmacist with taxonomy code 1835P1200X and a focus in Pharmacotherapy.
