DR. BABRAY LAEK MD
NPI 1578141347
Internal Medicine - Rheumatology in Boston, MA

NPI Status: Active since March 31, 2021

Contact Information

860 WASHINGTON ST BLDG 3
BOSTON, MA
ZIP 02111
Phone: (617) 636-5990
Fax: (617) 636-2388

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NPPES record last updated: September 13, 2024. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Male
  • Internal Medicine
  • Rheumatology

About BABRAY LAEK

This page provides the complete NPI Profile along with additional information for Babray Laek, an internist established in Boston, Massachusetts with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1578141347 assigned on March 2021. The practitioner's primary taxonomy code is 207RR0500X with license number 3015878 (MA). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1578141347
Provider Name
DR. BABRAY LAEK MD
Gender
Male
Entity Type
Individual
Location Address
860 WASHINGTON ST BLDG 3 BOSTON, MA 02111
Location Phone
(617) 636-5990
Location Fax
(617) 636-2388
Mailing Address
860 WASHINGTON ST BLDG 3 BOSTON, MA 02111
Mailing Phone
(617) 636-5990
Mailing Fax
(617) 636-2388
Is Sole Proprietor?
No
Enumeration Date
03-31-2021
Last Update Date
09-13-2024
Code Navigator

An internist like Babray Laek 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 Rheumatology

Taxonomy Code
207RR0500X
Type
Allopathic & Osteopathic Physicians
License No.
3015878
License State
MA
Taxonomy Description
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

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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 1578141347, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
8
Unchanged
Pos 5
1
Doubled → 2
Pos 6
4
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
4
Doubled → 8
Check
7
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 1 → 2 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 + 5 + 1 + 4 + 8 + 2 + 4 + 2 + 3 + 8 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1578141347.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1578141347, enumerated as an "individual" on March 31, 2021.

The provider is located at 860 WASHINGTON ST BLDG 3 BOSTON, MA 02111 and the phone number is (617) 636-5990.

Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.