DR. WILLIAM HAROLD PERLOW MD
NPI 1629006788
Internal Medicine - Gastroenterology in New York, NY

NPI Status: Active since June 29, 2006

Contact Information

68 E 86TH ST
NEW YORK, NY
ZIP 10028
Phone: (212) 535-1845
Fax: (212) 861-6285

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  • Individual
  • Male
  • Internal Medicine
  • Gastroenterology
  • CLIA Number: 33D1019573
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 10-27-2025

About WILLIAM PERLOW

This page provides the complete NPI Profile along with additional information for William Perlow, an internist established in New York, New York with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1629006788 assigned on June 2006. The practitioner's primary taxonomy code is 207RG0100X with license number 104257 (NY). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1629006788
Provider Name
DR. WILLIAM HAROLD PERLOW MD
Gender
Male
Entity Type
Individual
Location Address
68 E 86TH ST NEW YORK, NY 10028
Location Phone
(212) 535-1845
Location Fax
(212) 861-6285
Mailing Address
68 E 86TH ST NEW YORK, NY 10028
Mailing Phone
(212) 535-1845
Mailing Fax
(212) 861-6285
Is Sole Proprietor?
No
Enumeration Date
06-29-2006
Last Update Date
07-08-2007
Code Navigator

An internist like William Perlow 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.

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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

Internal Medicine Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
104257
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
W0Z361MEDICARE ID-TYPE UNSPECIFIED (04)NY 
B15828MEDICARE UPIN (02)NY 

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
33D1019573
Facility Type
Physician Office
Certificate Effective Date
October 28, 2023
Certificate Expiration Date
October 27, 2025
Laboratory Director
LEON KAVALER
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to William Perlow to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1629006788, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
8
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 2 → 4 0 → 0 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 0 + 0 + 1 + 2 + 7 + 1 + 6 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1629006788.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Internal Medicine (Gastroenterology)
68 E 86TH ST
NEW YORK, NY 10028
Otolaryngology
68 E 86TH ST
NEW YORK, NY 10028
Anesthesiology
68 E 86TH ST
NEW YORK, NY 10028
Internal Medicine (Gastroenterology)
68 E 86TH ST
NEW YORK, NY 10028

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629006788, enumerated as an "individual" on June 29, 2006.

The provider is located at 68 E 86TH ST NEW YORK, NY 10028 and the phone number is (212) 535-1845.

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.