MONTGOMERY ALLERGY ASSOCIATES LTD
NPI 1679668917
Allergy & Immunology - Allergy in Jenkintown, PA

NPI Status: Active since October 03, 2006

Contact Information

261 OLD YORK RD
SUITE 801
JENKINTOWN, PA
ZIP 19046
Phone: (215) 884-7400
Fax: (215) 884-7426

NPI Profile Information
Primary Taxonomy
Group Taxonomy
Authorized Official
CLIA Information
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Allergy & Immunology
Allergy
CLIA Number: 39D0951184
CLIA Cert. Type: Physician Office
CLIA Exp. Date: 09-14-2026

About MONTGOMERY ALLERGY ASSOCIATES LTD

This page provides the complete NPI Profile along with additional information for Montgomery Allergy Associates Ltd, a provider established in Jenkintown, Pennsylvania operating as a Allergy & Immunology, focusing in allergy . The healthcare provider is registered in the NPI registry with number 1679668917 assigned on October 2006. The practitioner's primary taxonomy code is 207KA0200X with license number MD028559L (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 Charles G Blumstein Md (President)

NPI: 1679668917
Provider Name: MONTGOMERY ALLERGY ASSOCIATES LTD
Entity Type: Organization
Location Address: 261 OLD YORK RD SUITE 801 JENKINTOWN, PA 19046
Location Phone: (215) 884-7400
Location Fax: (215) 884-7426
Mailing Address: 261 OLD YORK RD SUITE 801 JENKINTOWN, PA 19046
Mailing Phone: (215) 884-7400
Mailing Fax: (215) 884-7426
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 10-03-2006
Last Update Date: 08-22-2020
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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: Allergy & Immunology Allergy
Taxonomy Code: 207KA0200X
Type: Allopathic & Osteopathic Physicians
License No.: MD028559L
License State: PA
Taxonomy Description: A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

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: CHARLES G BLUMSTEIN MD
Authorized Official Title: PRESIDENT
Authorized Official Phone: (215) 884-7400

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number: 39D0951184
Facility Type: Physician Office
Certificate Effective Date: September 15, 2024
Certificate Expiration Date: September 14, 2026
Laboratory Director: GUY E. MCELWAIN MD
Certificate Type: Certificate of Waiver
Certificate Type Description: This CLIA certificate is issued to Montgomery Allergy Associates Ltd to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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 1679668917, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 2

Check

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 6 → 12 → 3 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 1 + 2 + 6 + 1 + 6 + 9 + 2 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1679668917.