MARK L. MALLEK, MD P.C.
NPI 1649330226
Internal Medicine - Gastroenterology in Nashua, NH

NPI Status: Active since December 12, 2006

Contact Information

280 MAIN ST
SUITE 340
NASHUA, NH
ZIP 03060
Phone: (603) 881-8000
Fax: (603) 881-8001

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  • Organization
  • Internal Medicine
  • Gastroenterology

About MARK L. MALLEK, MD P.C.

This page provides the complete NPI Profile along with additional information for Mark L. Mallek, Md P.c., an internist established in Nashua, New Hampshire operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1649330226 assigned on December 2006. The practitioner's primary taxonomy code is 207RG0100X with license number 6560 (NH). The provider is registered as an organization and their NPI record was last updated 6 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Mrs. Marie Ellis (Office Manager)

NPI
1649330226
Provider Name
MARK L. MALLEK, MD P.C.
Entity Type
Organization
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
Is Organization Subpart?
No
Enumeration Date
12-12-2006
Last Update Date
08-22-2020
Code Navigator

An internist like Mark L. Mallek, Md P.c. 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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MRS. MARIE ELLIS

Authorized Official Title
OFFICE MANAGER
Authorized Official Phone
(603) 881-8000

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
404414OTHER (01)TUFTS
0100335Y0NH01OTHER (01)NHANTHEM
82110335MEDICAID (05)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 1649330226, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
3
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
Check
6
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 4 → 8 3 → 6 0 → 0 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 6 + 3 + 0 + 2 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1649330226.

Other Providers at the Same Location


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

Internal Medicine
280 MAIN ST, SUITE 210A
NASHUA, NH 03060
Internal Medicine (Gastroenterology)
280 MAIN ST, SUITE 340
NASHUA, NH 03060
Obstetrics & Gynecology
280 MAIN ST, SUITE 131
NASHUA, NH 03060
Obstetrics & Gynecology
280 MAIN ST, SUITE 131
NASHUA, NH 03060
Anesthesiology (Pain Medicine)
280 MAIN ST, STE 330
NASHUA, NH 03060
Surgery
280 MAIN ST, SUITE 441
NASHUA, NH 03060
Dentist (General Practice)
280 MAIN ST, SUITE 311
NASHUA, NH 03060
Internal Medicine
280 MAIN ST, SECOND FLOOR
NASHUA, NH 03060
Nurse Practitioner (Pediatrics)
280 MAIN ST, SUITE 410
NASHUA, NH 03060
Physical Therapist
280 MAIN ST, NCHA - SUITE 210A
NASHUA, NH 03060
Pediatrics
280 MAIN ST, SUITE 410
NASHUA, NH 03060
Nurse Practitioner (Adult Health)
280 MAIN ST, SUITE 210B
NASHUA, NH 03060
Pediatrics
280 MAIN ST, SUITE 111
NASHUA, NH 03060
Internal Medicine
280 MAIN ST, SUITE 210
NASHUA, NH 03060
Internal Medicine
280 MAIN ST, SUITE 210
NASHUA, NH 03060
Internal Medicine
280 MAIN ST, SUITE 210
NASHUA, NH 03060
Internal Medicine
280 MAIN ST, SUITE 210
NASHUA, NH 03060
Nurse Practitioner (Family)
280 MAIN ST, SUITE 420
NASHUA, NH 03060
Nurse Practitioner (Psychiatric/Mental Health)
280 MAIN ST, SUITE 131
NASHUA, NH 03060
Obstetrics & Gynecology
280 MAIN ST, SUITE 131
NASHUA, NH 03060

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649330226, enumerated as an "organization" on December 12, 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: Tufts Health Plan, Medicare, Medicaid and Anthem. Please consult your insurance carrier or call the provider to verify.