HAE IN YUN
NPI 1649118159
Surgery - Vascular Surgery in Allentown, PA

NPI Status: Active since March 24, 2026

Contact Information

1200 S CEDAR CREST BLVD
ALLENTOWN, PA
ZIP 18103
Phone: (610) 402-8000

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Surgery
Vascular Surgery

About HAE YUN

This page provides the complete NPI Profile along with additional information for Hae Yun, a provider established in Allentown, Pennsylvania with a medical specialization in Surgery, focusing in vascular surgery . The healthcare provider is registered in the NPI registry with number 1649118159 assigned on March 2026. The practitioner's primary taxonomy code is 2086S0129X with license number MT236473 (PA). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI: 1649118159
Provider Name: HAE IN YUN
Gender: Female
Entity Type: Individual
Location Address: 1200 S CEDAR CREST BLVD ALLENTOWN, PA 18103
Location Phone: (610) 402-8000
Mailing Address: 1200 S CEDAR CREST BLVD ALLENTOWN, PA 18103
Is Sole Proprietor?: Yes
Enumeration Date: 03-24-2026
Last Update Date: 04-30-2026
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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: Surgery Vascular Surgery
Taxonomy Code: 2086S0129X
Type: Allopathic & Osteopathic Physicians
License No.: MT236473
License State: PA
Taxonomy Description: A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

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 1649118159, 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 4 → 8 1 → 2 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 2 + 1 + 1 + 6 + 1 + 1 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1649118159.