DR. MARK J CZAJA MD
NPI 1265522163
Internal Medicine - Gastroenterology in Bronx, NY

NPI Status: Active since October 13, 2006

Contact Information

MONTEFIORE MEDICAL PARK
1515 BLONDELL AVENUE, STE. 220
BRONX, NY
ZIP 10461
Phone: (866) 633-8255

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  • Individual
  • Male
  • Internal Medicine
  • Gastroenterology

About MARK CZAJA

This page provides the complete NPI Profile along with additional information for Mark Czaja, an internist established in Bronx, New York with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1265522163 assigned on October 2006. The practitioner's primary taxonomy code is 207RG0100X with license number 154435 (NY). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1265522163
Provider Name
DR. MARK J CZAJA MD
Gender
Male
Entity Type
Individual
Location Address
MONTEFIORE MEDICAL PARK 1515 BLONDELL AVENUE, STE. 220 BRONX, NY 10461
Location Phone
(866) 633-8255
Mailing Address
10 SMITH PL WILLISTON PARK, NY 11596
Mailing Phone
(866) 633-8255
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
10-13-2006
Last Update Date
07-08-2007
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An internist like Mark Czaja 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.
154435
License State
NY
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.

*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
A60441MEDICARE UPIN (02)NY 

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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 1265522163, we treat the final digit (3) 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 3).

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
2
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
2
Unchanged
Pos 7
2
Doubled → 4
Pos 8
1
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
3
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 6 → 12 → 3 5 → 10 → 1 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 2 + 5 + 1 + 0 + 2 + 4 + 1 + 1 + 2 + 24 = 47

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

The next multiple of ten after 47 is 50. The difference is the calculated check digit.

50 - 47 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1265522163.

Other Providers at the Same Location


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

Radiology (Diagnostic Radiology)
MONTEFIORE MEDICAL PARK, 1625 POPLAR STREET
BRONX, NY 10461
Internal Medicine (Nephrology)
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE
BRONX, NY 10461
Internal Medicine (Gastroenterology)
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE, STE. 200
BRONX, NY 10461
Internal Medicine (Endocrinology, Diabetes & Metabolism)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE
BRONX, NY 10461
Internal Medicine (Endocrinology, Diabetes & Metabolism)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 200
BRONX, NY 10461
Dermatology
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 200
BRONX, NY 10461
Internal Medicine (Nephrology)
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE, STE. 220
BRONX, NY 10461
Internal Medicine (Infectious Disease)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE
BRONX, NY 10461
Internal Medicine
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 200
BRONX, NY 10461
Internal Medicine (Rheumatology)
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE, STE. 220
BRONX, NY 10461
Internal Medicine (Endocrinology, Diabetes & Metabolism)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 200
BRONX, NY 10461
Nurse Practitioner
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE STE 200
BRONX, NY 10461
Internal Medicine (Hematology)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE
BRONX, NY 10461
Allergy & Immunology
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE, STE. 220
BRONX, NY 10461
Internal Medicine (Pulmonary Disease)
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE, STE. 220
BRONX, NY 10461
Internal Medicine (Nephrology)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 220
BRONX, NY 10461
Internal Medicine
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 200
BRONX, NY 10461
Internal Medicine (Endocrinology, Diabetes & Metabolism)
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE
BRONX, NY 10461
Internal Medicine (Nephrology)
MONTEFIORE MEDICAL PARK, 1515 BLONDELL AVENUE, STE. 220
BRONX, NY 10461
Surgery
MONTEFIORE MEDICAL PARK, 1575 BLONDELL AVENUE, STE. 125
BRONX, NY 10461

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265522163, enumerated as an "individual" on October 13, 2006.

The provider is located at MONTEFIORE MEDICAL PARK 1515 BLONDELL AVENUE, STE. 220 BRONX, NY 10461 and the phone number is (866) 633-8255.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.