DR. MARK LASAK MALLEK M.D.
NPI 1609841832
Internal Medicine - Gastroenterology in Nashua, NH
NPI Status: Active since February 21, 2006
Contact Information
280 MAIN ST
SUITE 340
NASHUA, NH
ZIP 03060
Phone: (603) 881-8000
Fax: (603) 881-8001
- Individual
- Male
- Internal Medicine
- Gastroenterology
About MARK MALLEK
This page provides the complete NPI Profile along with additional information for Mark Mallek, an internist established in Nashua, New Hampshire with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1609841832 assigned on February 2006. The practitioner's primary taxonomy code is 207RG0100X with license number 6560 (NH). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1609841832
- Provider Name
- DR. MARK LASAK MALLEK M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 280 MAIN ST SUITE 340 NASHUA, NH 03060
- Location Phone
- (603) 881-8000
- Location Fax
- (603) 881-8001
- Mailing Address
- 280 MAIN ST SUITE 340 NASHUA, NH 03060
- Mailing Phone
- (603) 881-8000
- Mailing Fax
- (603) 881-8001
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-21-2006
- Last Update Date
- 07-09-2007
- Code Navigator
An internist like Mark Mallek is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
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
Internal Medicine Gastroenterology
- Taxonomy Code
- 207RG0100X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 6560
- License State
- NH
- Taxonomy Description
- An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| NH0335 | MEDICARE ID-TYPE UNSPECIFIED (04) | NH | NH MEDICARE ID |
| 404414 | OTHER (01) | MA | TUFTS |
| NH0335 | OTHER (01) | MA | BCBS OF MA |
| 82110335 | MEDICAID (05) | NH | |
| 0100335Y0NH01 | OTHER (01) | NH | ANTHEM ID |
| 82110335 | OTHER (01) | NH | HARVARD ID |
| D03389 | MEDICARE UPIN (02) | NH |
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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 1609841832, 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.
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 68 is 70. 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.
NASHUA, NH 03060
NASHUA, NH 03060
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1609841832, enumerated as an "individual" on February 21, 2006.
The provider is located at 280 MAIN ST SUITE 340 NASHUA, NH 03060 and the phone number is (603) 881-8000.
Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.
The provider might be accepting Accepts: Medicare, Medicaid, Tufts Health Plan, Blue Cross. Please consult your insurance carrier or call the provider to verify.
