STEPHEN CHARLES MATCHETT MD
NPI 1881773364
Internal Medicine - Pulmonary Disease in Allentown, PA

NPI Status: Active since November 03, 2006

Contact Information

1247 S CEDAR CREST BLVD
SUITE 106B
ALLENTOWN, PA
ZIP 18103
Phone: (610) 402-9373
Fax: (610) 402-9384

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  • Individual
  • Male
  • Internal Medicine
  • Pulmonary Disease

About STEPHEN MATCHETT

This page provides the complete NPI Profile along with additional information for Stephen Matchett, an internist established in Allentown, Pennsylvania with a medical specialization in Internal Medicine, focusing in pulmonary disease . The healthcare provider is registered in the NPI registry with number 1881773364 assigned on November 2006. The practitioner's primary taxonomy code is 207RP1001X with license number MD055898L (PA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1881773364
Provider Name
STEPHEN CHARLES MATCHETT MD
Gender
Male
Entity Type
Individual
Location Address
1247 S CEDAR CREST BLVD SUITE 106B ALLENTOWN, PA 18103
Location Phone
(610) 402-9373
Location Fax
(610) 402-9384
Mailing Address
1247 S CEDAR CREST BLVD SUITE 106B ALLENTOWN, PA 18103
Mailing Phone
(610) 402-9373
Mailing Fax
(610) 402-9384
Is Sole Proprietor?
No
Enumeration Date
11-03-2006
Last Update Date
09-11-2025
Code Navigator

An internist like Stephen Matchett 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 Pulmonary Disease

Taxonomy Code
207RP1001X
Type
Allopathic & Osteopathic Physicians
License No.
MD055898L
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

MD055898L (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 1881773364, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
8
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
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 8 → 16 → 7 7 → 14 → 5 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 1 + 4 + 7 + 6 + 3 + 1 + 2 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1881773364.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Dentist
1247 S CEDAR CREST BLVD, SUITE# 300
ALLENTOWN, PA 18103
Dentist (Pediatric Dentistry)
1247 S CEDAR CREST BLVD, SUITE 300
ALLENTOWN, PA 18103
Dentist (Endodontics)
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Dentist (General Practice)
1247 S CEDAR CREST BLVD, SUITE 300
ALLENTOWN, PA 18103
Dentist (Pediatric Dentistry)
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Nurse Practitioner (Family)
1247 S CEDAR CREST BLVD, SUITE 100
ALLENTOWN, PA 18103
Nurse Practitioner (Family)
1247 S CEDAR CREST BLVD, SUITE 100
ALLENTOWN, PA 18103
Dietitian, Registered
1247 S CEDAR CREST BLVD, SUITE 100
ALLENTOWN, PA 18103
Physical Therapist
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Nurse Practitioner (Psychiatric/Mental Health)
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Oral & Maxillofacial Surgery
1247 S CEDAR CREST BLVD, SUITE# 300
ALLENTOWN, PA 18103
Dentist
1247 S CEDAR CREST BLVD, SUITE 300
ALLENTOWN, PA 18103
Dentist
1247 S CEDAR CREST BLVD, SUITE 300
ALLENTOWN, PA 18103
Counselor (Professional)
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Psychologist (Clinical)
1247 S CEDAR CREST BLVD, CICS - STE 100
ALLENTOWN, PA 18103
Surgery
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Social Worker
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Student in an Organized Health Care Education/Training Program
1247 S CEDAR CREST BLVD
ALLENTOWN, PA 18103
Pharmacy (Home Infusion Therapy Pharmacy)
1247 S CEDAR CREST BLVD, SUITE 105
ALLENTOWN, PA 18103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1881773364, enumerated as an "individual" on November 03, 2006.

The provider is located at 1247 S CEDAR CREST BLVD SUITE 106B ALLENTOWN, PA 18103 and the phone number is (610) 402-9373.

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