DR. FRANK S CZERWIEC JR. MD, PHD
NPI 1215048095
Internal Medicine - Endocrinology, Diabetes & Metabolism in Rockville, MD

NPI Status: Active since August 31, 2006

Contact Information

2440 RESEARCH BLVD
3RD FLOOR, CLINICAL DEVELOPMENT
ROCKVILLE, MD
ZIP 20850
Phone: (240) 683-3523
Fax: (301) 721-7523

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  • Individual
  • Male
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism

About FRANK CZERWIEC

This page provides the complete NPI Profile along with additional information for Frank Czerwiec, an internist established in Rockville, Maryland with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1215048095 assigned on August 2006. The practitioner's primary taxonomy code is 207RE0101X with license number D0046791 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1215048095
Provider Name
DR. FRANK S CZERWIEC JR. MD, PHD
Gender
Male
Entity Type
Individual
Location Address
2440 RESEARCH BLVD 3RD FLOOR, CLINICAL DEVELOPMENT ROCKVILLE, MD 20850
Location Phone
(240) 683-3523
Location Fax
(301) 721-7523
Mailing Address
11808 FORUM HILL CT POTOMAC, MD 20854
Mailing Phone
(301) 983-5836
Mailing Fax
(301) 721-7523
Is Sole Proprietor?
Yes
Enumeration Date
08-31-2006
Last Update Date
07-08-2007
Code Navigator

An internist like Frank Czerwiec 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 Endocrinology, Diabetes & Metabolism

Taxonomy Code
207RE0101X
Type
Allopathic & Osteopathic Physicians
License No.
D0046791
License State
MD
Taxonomy Description
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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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 1215048095, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
0
Doubled → 0
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
0
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
5
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 1 → 2 0 → 0 8 → 16 → 7 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 0 + 4 + 1 + 6 + 0 + 1 + 8 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1215048095.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215048095, enumerated as an "individual" on August 31, 2006.

The provider is located at 2440 RESEARCH BLVD 3RD FLOOR, CLINICAL DEVELOPMENT ROCKVILLE, MD 20850 and the phone number is (240) 683-3523.

Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.