ELCHANAN ZLOCZOWER MD, MHA
NPI 1770459935
Otolaryngology in Philadelphia, PA

NPI Status: Active since October 15, 2025

Contact Information

925 CHESTNUT ST
PHILADELPHIA, PA
ZIP 19107
Phone: (215) 955-6784

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  • Individual
  • Male
  • Otolaryngology

About ELCHANAN ZLOCZOWER

This page provides the complete NPI Profile along with additional information for Elchanan Zloczower, a provider established in Philadelphia, Pennsylvania with a medical specialization in Otolaryngology. The healthcare provider is registered in the NPI registry with number 1770459935 assigned on October 2025. The practitioner's primary taxonomy code is 207Y00000X with license number LT001070 (PA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1770459935
Provider Name
ELCHANAN ZLOCZOWER MD, MHA
Gender
Male
Entity Type
Individual
Location Address
925 CHESTNUT ST PHILADELPHIA, PA 19107
Location Phone
(215) 955-6784
Mailing Address
925 CHESTNUT ST PHILADELPHIA, PA 19107
Mailing Phone
(215) 955-6784
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
10-15-2025
Last Update Date
10-15-2025
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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

Otolaryngology

Taxonomy Code
207Y00000X
Type
Allopathic & Osteopathic Physicians
License No.
LT001070
License State
PA
Taxonomy Description
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

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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 1770459935, 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 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
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
5
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
3
Doubled → 6
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 7 → 14 → 5 4 → 8 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 8 + 5 + 1 + 8 + 9 + 6 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1770459935.

Other Providers at the Same Location


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

Physical Therapy Assistant
925 CHESTNUT ST, SUITE 6F, PHYSICAL THERAPY
PHILADELPHIA, PA 19107
Physical Therapist
925 CHESTNUT ST
PHILADELPHIA, PA 19107
Physical Therapist
925 CHESTNUT ST
PHILA, PA 19107
Internal Medicine (Medical Oncology)
925 CHESTNUT ST, SUITE 320A
PHILADELPHIA, PA 19107
Physical Therapist
925 CHESTNUT ST
PHILADELPHIA, PA 19107
Specialist/Technologist (Athletic Trainer)
925 CHESTNUT ST
PHILADELPHIA, PA 19107
Internal Medicine (Hematology & Oncology)
925 CHESTNUT ST, SUITE 420
PHILADELPHIA, PA 19107
Nurse Practitioner
925 CHESTNUT ST, MEZZANINE
PHILADELPHIA, PA 19107
Internal Medicine (Cardiovascular Disease)
925 CHESTNUT ST, MEZZANINE FLOOR
PHILADELPHIA, PA 19107
Internal Medicine (Cardiovascular Disease)
925 CHESTNUT ST
PHILADELPHIA, PA 19107
Internal Medicine (Cardiovascular Disease)
925 CHESTNUT ST
PHILADELPHIA, PA 19107
Internal Medicine (Cardiovascular Disease)
925 CHESTNUT ST, MEZZANINE FLOOR
PHILADELPHIA, PA 19107
Internal Medicine (Cardiovascular Disease)
925 CHESTNUT ST, MEZZANINE FLOOR
PHILADELPHIA, PA 19107
Otolaryngology (Plastic Surgery within the Head & Neck)
925 CHESTNUT ST, 6TH FLOOR
PHILADELPHIA, PA 19107
Internal Medicine (Medical Oncology)
925 CHESTNUT ST, SUITE 320A
PHILADELPHIA, PA 19107
Nurse Practitioner
925 CHESTNUT ST, 320A
PHILADELPHIA, PA 19107
Internal Medicine (Hematology & Oncology)
925 CHESTNUT ST, SUITE 320A
PHILADELPHIA, PA 19107
Orthopaedic Surgery
925 CHESTNUT ST
PHILADELPHIA, PA 19107
Otolaryngology
925 CHESTNUT ST, 6TH FLOOR
PHILADELPHIA, PA 19107
Nurse Practitioner (Adult Health)
925 CHESTNUT ST
PHILADELPHIA, PA 19107

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770459935, enumerated as an "individual" on October 15, 2025.

The provider is located at 925 CHESTNUT ST PHILADELPHIA, PA 19107 and the phone number is (215) 955-6784.

Otolaryngology with taxonomy code 207Y00000X.