DR. MARK LINDEN FRANKLIN PHARMD
NPI 1821187022
Pharmacist - Geriatric in Chicago, IL
NPI Status: Active since October 12, 2006
Contact Information
836 W WELLINGTON AVE
ADVOCATE ILLINOIS MASONIC MEDICAL CENTER PHARMACY
CHICAGO, IL
ZIP 60657
Phone: (773) 296-5259
Fax: (773) 296-8021
- Individual
- Male
- Pharmacist
- Geriatric
About MARK FRANKLIN
This page provides the complete NPI Profile along with additional information for Mark Franklin, a provider established in Chicago, Illinois with a medical specialization in Pharmacist, focusing in geriatric . The healthcare provider is registered in the NPI registry with number 1821187022 assigned on October 2006. The practitioner's primary taxonomy code is 1835G0303X. The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1821187022
- Provider Name
- DR. MARK LINDEN FRANKLIN PHARMD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 836 W WELLINGTON AVE ADVOCATE ILLINOIS MASONIC MEDICAL CENTER PHARMACY CHICAGO, IL 60657
- Location Phone
- (773) 296-5259
- Location Fax
- (773) 296-8021
- Mailing Address
- 800 W CORNELIA AVE APT 201 CHICAGO, IL 60657
- Mailing Phone
- (312) 493-3323
- Mailing Fax
- (773) 296-8021
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 10-12-2006
- Last Update Date
- 09-11-2025
- Code Navigator
A pharmacist like Mark Franklin 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 Geriatric
- Taxonomy Code
- 1835G0303X
- Type
- Pharmacy Service Providers
- License State
- IL
- Taxonomy Description
- A pharmacist who is certified in geriatric pharmacy practice is designated as a Certified Geriatric Pharmacist (CGP). To become certified, candidates are expected to be knowledgeable about principles of geriatric pharmacotherapy and the provision of pharmaceutical care to the elderly.
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 | 1835P1200X | 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 1821187022, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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.
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 58 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.
CHICAGO, IL 60657
CHICAGO, IL 60657
CHICAGO, IL 60657
CHICAGO, IL 60657
CHICAGO, IL 60657
CHICAGO, IL 60657
CHICAGO, IL 60657
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821187022, enumerated as an "individual" on October 12, 2006.
The provider is located at 836 W WELLINGTON AVE ADVOCATE ILLINOIS MASONIC MEDICAL CENTER PHARMACY CHICAGO, IL 60657 and the phone number is (773) 296-5259.
Pharmacist with taxonomy code 1835G0303X and a focus in Geriatric.
