JOHN J. CASSEL, MD, PC
NPI 1548254725
Internal Medicine - Cardiovascular Disease in Allentown, PA

NPI Status: Active since September 02, 2005

Contact Information

1255 S CEDAR CREST BLVD
SUITE 1200
ALLENTOWN, PA
ZIP 18103
Phone: (610) 437-6222
Fax: (610) 437-5910

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  • Organization
  • Internal Medicine
  • Cardiovascular Disease

About JOHN J. CASSEL, MD, PC

This page provides the complete NPI Profile along with additional information for John J. Cassel, Md, Pc, an internist established in Allentown, Pennsylvania operating as a Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1548254725 assigned on September 2005. The practitioner's primary taxonomy code is 207RC0000X with license number MC933136C (PA). The provider is registered as an organization and their NPI record was last updated 6 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Margery Fettig Rn (Practice Manager)

NPI
1548254725
Provider Name
JOHN J. CASSEL, MD, PC
Entity Type
Organization
Location Address
1255 S CEDAR CREST BLVD SUITE 1200 ALLENTOWN, PA 18103
Location Phone
(610) 437-6222
Location Fax
(610) 437-5910
Mailing Address
1255 S CEDAR CREST BLVD SUITE 1200 ALLENTOWN, PA 18103
Mailing Phone
(610) 437-6222
Mailing Fax
(610) 437-5910
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-02-2005
Last Update Date
08-22-2020
Code Navigator

An internist like John J. Cassel, Md, Pc 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 Cardiovascular Disease

Taxonomy Code
207RC0000X
Type
Allopathic & Osteopathic Physicians
License No.
MC933136C
License State
PA
Taxonomy Description
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MARGERY FETTIG RN

Authorized Official Title
PRACTICE MANAGER
Authorized Official Phone
(610) 437-6222

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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 1548254725, 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
5
Unchanged
Pos 3
4
Doubled → 8
Pos 4
8
Unchanged
Pos 5
2
Doubled → 4
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
7
Unchanged
Pos 9
2
Doubled → 4
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 4 → 8 2 → 4 4 → 8 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 4 + 5 + 8 + 7 + 4 + 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 1548254725.

Other Providers at the Same Location


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

Surgery
1255 S CEDAR CREST BLVD, STE 1100
ALLENTOWN, PA 18103
Internal Medicine (Cardiovascular Disease)
1255 S CEDAR CREST BLVD, SUITE 1200
ALLENTOWN, PA 18103
Physician Assistant
1255 S CEDAR CREST BLVD, SUITE 1200
ALLENTOWN, PA 18103
Hospitalist
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Psychiatry & Neurology (Psychiatry)
1255 S CEDAR CREST BLVD, SUITE 3800
ALLENTOWN, PA 18103
Social Worker (Clinical)
1255 S CEDAR CREST BLVD, SUITE 3800
ALLENTOWN, PA 18103
Social Worker (Clinical)
1255 S CEDAR CREST BLVD, SUITE 3800
ALLENTOWN, PA 18103
Family Medicine
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Social Worker (Clinical)
1255 S CEDAR CREST BLVD, SUITE 3800
ALLENTOWN, PA 18103
Counselor (Professional)
1255 S CEDAR CREST BLVD, SUITE 3800
ALLENTOWN, PA 18103
Physician Assistant (Medical)
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Durable Medical Equipment & Medical Supplies
1255 S CEDAR CREST BLVD, SUITE 2900
ALLENTOWN, PA 18103
Nurse Practitioner (Gerontology)
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Family Medicine
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Physician Assistant (Medical)
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Internal Medicine
1255 S CEDAR CREST BLVD, SUITE 2200
ALLENTOWN, PA 18103
Internal Medicine
1255 S CEDAR CREST BLVD, SUITE 3200
ALLENTOWN, PA 18103
Internal Medicine
1255 S CEDAR CREST BLVD, DEPARTMENT OF MEDICINE, SUITE 3200
ALLENTOWN, PA 18103
Podiatrist (Foot & Ankle Surgery)
1255 S CEDAR CREST BLVD, SUITE 2900
ALLENTOWN, PA 18103
Social Worker (Clinical)
1255 S CEDAR CREST BLVD, SUITE 3800
ALLENTOWN, PA 18103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1548254725, enumerated as an "organization" on September 02, 2005.

The provider is located at 1255 S CEDAR CREST BLVD SUITE 1200 ALLENTOWN, PA 18103 and the phone number is (610) 437-6222.

Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.