GREG LIPSCHIK MD
NPI 1669491049
Internal Medicine - Pulmonary Disease in Philadelphia, PA

NPI Status: Active since July 18, 2006

Contact Information

3400 SPRUCE ST
PHILADELPHIA, PA
ZIP 19104
Phone: (215) 662-3202

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  • Individual
  • Male
  • Internal Medicine
  • Pulmonary Disease

About GREG LIPSCHIK

This page provides the complete NPI Profile along with additional information for Greg Lipschik, 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 1669491049 assigned on July 2006. The practitioner's primary taxonomy code is 207RP1001X with license number MD033652E (PA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1669491049
Provider Name
GREG LIPSCHIK MD
Gender
Male
Entity Type
Individual
Location Address
3400 SPRUCE ST PHILADELPHIA, PA 19104
Location Phone
(215) 662-3202
Mailing Address
3624 MARKET ST SUITE 560 W PHILADELPHIA, PA 19104
Mailing Phone
(215) 662-2286
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
07-18-2006
Last Update Date
09-11-2025
Code Navigator

An internist like Greg Lipschik 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.
MD033652E
License State
PA
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)
1207RC0200XAllopathic & Osteopathic Physicians

Internal Medicine
Critical Care Medicine

MD033652E (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 1669491049, 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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
1
Doubled → 2
Pos 8
0
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 6 → 12 → 3 4 → 8 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 8 + 9 + 2 + 0 + 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 1669491049.

Other Providers at the Same Location


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

Anesthesiology
3400 SPRUCE ST, 6 DULLES
PHILADELPHIA, PA 19104
Anesthesiology (Pain Medicine)
3400 SPRUCE ST, HUP-DULLES 6, ANESTHESIOLOGY DEPT
PHILADELPHIA, PA 19104
Genetic Counselor, MS
3400 SPRUCE ST, 535 MALONEY BLDG
PHILADELPHIA, PA 19104
Genetic Counselor, MS
3400 SPRUCE ST, 2007 PENN TOWER
PHILADELPHIA, PA 19104
Nurse Practitioner (Adult Health)
3400 SPRUCE ST, GOUND FLOOR SILVERSTEIN
PHILADELPHIA, PA 19104
Genetic Counselor, MS
3400 SPRUCE ST, ROOM 538 MALONEY BUILDING
PHILADELPHIA, PA 19104
Radiology (Radiation Oncology)
3400 SPRUCE ST
PHILADELPHIA, PA 19104
Psychiatry & Neurology (Psychiatry)
3400 SPRUCE ST, 2016 PENN TOWER
PHILADELPHIA, PA 19104
Internal Medicine (Infectious Disease)
3400 SPRUCE ST, 3 SILVERSTEIN
PHILADELPHIA, PA 19104
Radiology (Radiation Oncology)
3400 SPRUCE ST, 2 DONNER BUILDING
PHILADELPHIA, PA 19104
Emergency Medicine
3400 SPRUCE ST, GROUND SILVER STE N BLDG
PHILADELPHIA, PA 19104
Internal Medicine (Medical Oncology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104
Anesthesiology
3400 SPRUCE ST, 4 DULLES BUILDING
PHILADELPHIA, PA 19104
Internal Medicine (Hematology & Oncology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104
Internal Medicine (Medical Oncology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104
Pathology (Anatomic Pathology & Clinical Pathology)
3400 SPRUCE ST
PHILADELPHIA, PA 19104
Internal Medicine (Hematology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104
Internal Medicine (Medical Oncology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104
Internal Medicine (Hematology & Oncology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104
Internal Medicine (Hematology & Oncology)
3400 SPRUCE ST, 15 PENN TOWER
PHILADELPHIA, PA 19104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669491049, enumerated as an "individual" on July 18, 2006.

The provider is located at 3400 SPRUCE ST PHILADELPHIA, PA 19104 and the phone number is (215) 662-3202.

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