DR. LEWIS MORTON PORTNOY MD
NPI 1841557949
Pathology - Anatomic Pathology & Clinical Pathology in Westport, CT

NPI Status: Active since April 13, 2012

Contact Information

10 LINDA LN
WESTPORT, CT
ZIP 06880
Phone: (203) 222-7326
Fax: (203) 226-2853

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  • Individual
  • Male
  • Pathology
  • Anatomic Pathology & Clinical Pathology

About LEWIS PORTNOY

This page provides the complete NPI Profile along with additional information for Lewis Portnoy, a provider established in Westport, Connecticut with a medical specialization in Pathology, focusing in anatomic pathology & clinical pathology . The healthcare provider is registered in the NPI registry with number 1841557949 assigned on April 2012. The practitioner's primary taxonomy code is 207ZP0102X with license number 12993 (CT). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1841557949
Provider Name
DR. LEWIS MORTON PORTNOY MD
Gender
Male
Entity Type
Individual
Location Address
10 LINDA LN WESTPORT, CT 06880
Location Phone
(203) 222-7326
Location Fax
(203) 226-2853
Mailing Address
10 LINDA LN WESTPORT, CT 06880
Mailing Phone
(203) 227-3262
Mailing Fax
(203) 226-2853
Is Sole Proprietor?
Yes
Enumeration Date
04-13-2012
Last Update Date
04-13-2012
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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

Pathology Anatomic Pathology & Clinical Pathology

Taxonomy Code
207ZP0102X
Type
Allopathic & Osteopathic Physicians
License No.
12993
License State
CT
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

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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 1841557949, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
9
Unchanged
Pos 9
4
Doubled → 8
Check
9
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 5 → 10 → 1 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 1 + 0 + 5 + 1 + 4 + 9 + 8 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1841557949.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841557949, enumerated as an "individual" on April 13, 2012.

The provider is located at 10 LINDA LN WESTPORT, CT 06880 and the phone number is (203) 222-7326.

Pathology with taxonomy code 207ZP0102X and a focus in Anatomic Pathology & Clinical Pathology.