ABRAHAM YOAV LEISER MD
NPI 1760132971
Internal Medicine - Pulmonary Disease in Philadelphia, PA

NPI Status: Active since March 29, 2022

Contact Information

800 SPRUCE ST
PHILADELPHIA, PA
ZIP 19107
Phone: (215) 829-3309
Fax: (215) 829-7129

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  • Individual
  • Male
  • Internal Medicine
  • Pulmonary Disease

About ABRAHAM LEISER

This page provides the complete NPI Profile along with additional information for Abraham Leiser, an internist established in Philadelphia, Pennsylvania with a medical specialization in Internal Medicine, focusing in pulmonary disease . The healthcare provider is registered in the NPI registry with number 1760132971 assigned on March 2022. The practitioner's primary taxonomy code is 207RP1001X with license number 41922 (FL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1760132971
Provider Name
ABRAHAM YOAV LEISER MD
Gender
Male
Entity Type
Individual
Location Address
800 SPRUCE ST PHILADELPHIA, PA 19107
Location Phone
(215) 829-3309
Location Fax
(215) 829-7129
Mailing Address
800 SPRUCE ST PHILADELPHIA, PA 19107
Is Sole Proprietor?
No
Enumeration Date
03-29-2022
Last Update Date
05-06-2025
Code Navigator

An internist like Abraham Leiser 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 Pulmonary Disease

Taxonomy Code
207RP1001X
Type
Allopathic & Osteopathic Physicians
License No.
41922
License State
FL
Taxonomy Description
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

MT226495 (PA)

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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 1760132971, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
6
Doubled → 12 → 1 + 2
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
3
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
1
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 1 → 2 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 2 + 0 + 2 + 3 + 4 + 9 + 1 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1760132971.

Other Providers at the Same Location


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

Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Clinic/Center (Radiology)
800 SPRUCE ST, SECOND FLOOR, WIDENER BUILDING
PHILADELPHIA, PA 19107
Nurse Anesthetist, Certified Registered
800 SPRUCE ST
PHILADELPHIA, PA 19107
Rehabilitation Unit
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Nurse Anesthetist, Certified Registered
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Nurse Anesthetist, Certified Registered
800 SPRUCE ST
PHILADELPHIA, PA 19107
Obstetrics & Gynecology (Reproductive Endocrinology)
800 SPRUCE ST, ONE PINE EAST
PHILADELPHIA, PA 19107
Orthopaedic Surgery
800 SPRUCE ST
PHILADELPHIA, PA 19107
Radiology (Diagnostic Radiology)
800 SPRUCE ST, PAH 2 SHEIDT
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760132971, enumerated as an "individual" on March 29, 2022.

The provider is located at 800 SPRUCE ST PHILADELPHIA, PA 19107 and the phone number is (215) 829-3309.

Internal Medicine with taxonomy code 207RP1001X and a focus in Pulmonary Disease.