HENRY HAOTIAN PAI ATC
NPI 1548889819
Preventive Medicine - Sports Medicine in San Diego, CA

NPI Status: Active since April 15, 2020

Contact Information

7898 OSTROW ST STE A-B
SAN DIEGO, CA
ZIP 92111
Phone: (810) 357-5930

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NPPES record last updated: September 25, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Male
  • Preventive Medicine
  • Sports Medicine

About HENRY PAI

This page provides the complete NPI Profile along with additional information for Henry Pai, a provider established in San Diego, California with a medical specialization in Preventive Medicine, focusing in sports medicine . The healthcare provider is registered in the NPI registry with number 1548889819 assigned on April 2020. The practitioner's primary taxonomy code is 2083S0010X with license number BOC279142 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1548889819
Provider Name
HENRY HAOTIAN PAI ATC
Gender
Male
Entity Type
Individual
Location Address
7898 OSTROW ST STE A-B SAN DIEGO, CA 92111
Location Phone
(810) 357-5930
Mailing Address
7898 OSTROW ST STE A-B SAN DIEGO, CA 92111
Is Sole Proprietor?
No
Enumeration Date
04-15-2020
Last Update Date
09-25-2025
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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

Preventive Medicine Sports Medicine

Taxonomy Code
2083S0010X
Type
Allopathic & Osteopathic Physicians
License No.
BOC279142
License State
CA
Taxonomy Description
A preventive medicine physician who specializes in the diagnosis and treatment of sports related conditions and injuries.

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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 1548889819, 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 81. The final step is to find the difference between that total and the next multiple of ten (90 - 81 = 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
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
4
Doubled → 8
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
9
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 8 → 16 → 7 9 → 18 → 9 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 1 + 6 + 8 + 1 + 8 + 8 + 2 + 24 = 81

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

The next multiple of ten after 81 is 90. The difference is the calculated check digit.

90 - 81 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1548889819.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Massage Therapist
7898 OSTROW ST STE A-B
SAN DIEGO, CA 92111
Acupuncturist
7898 OSTROW ST STE A-B
SAN DIEGO, CA 92111
Acupuncturist
7898 OSTROW ST STE A-B
SAN DIEGO, CA 92111

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1548889819, enumerated as an "individual" on April 15, 2020.

The provider is located at 7898 OSTROW ST STE A-B SAN DIEGO, CA 92111 and the phone number is (810) 357-5930.

Preventive Medicine with taxonomy code 2083S0010X and a focus in Sports Medicine.