ROY M MATSUYAMA MD LLC
NPI 1982094975
Internal Medicine - Gastroenterology in Kahului, HI

NPI Status: Active since January 28, 2015

Contact Information

173 HOOHANA ST
SUITE 104
KAHULUI, HI
ZIP 96732
Phone: (808) 871-7222
Fax: (808) 871-2222

Get Directions Write a Review

  • Organization
  • Internal Medicine
  • Gastroenterology

About ROY M MATSUYAMA MD LLC

This page provides the complete NPI Profile along with additional information for Roy M Matsuyama Md Llc, an internist established in Kahului, Hawaii operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1982094975 assigned on January 2015. The practitioner's primary taxonomy code is 207RG0100X with license number 17851 (HI). The provider is registered as an organization and their NPI record was last updated 11 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 Roy M Matsuyama Md (Owner)

NPI
1982094975
Provider Name
ROY M MATSUYAMA MD LLC
Entity Type
Organization
Location Address
173 HOOHANA ST SUITE 104 KAHULUI, HI 96732
Location Phone
(808) 871-7222
Location Fax
(808) 871-2222
Mailing Address
173 HOOHANA ST SUITE 104 KAHULUI, HI 96732
Mailing Phone
(808) 871-7222
Mailing Fax
(808) 871-2222
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-28-2015
Last Update Date
02-02-2015
Code Navigator

An internist like Roy M Matsuyama Md Llc 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.

Location Map

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 Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
17851
License State
HI
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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

ROY M MATSUYAMA MD

Authorized Official Title
OWNER
Authorized Official Phone
(808) 871-7222

Reviews for ROY M MATSUYAMA MD LLC

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1982094975, we treat the final digit (5) 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 5).

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
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
0
Doubled → 0
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 0 → 0 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 6 + 2 + 0 + 9 + 8 + 9 + 1 + 4 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1982094975.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Internal Medicine (Gastroenterology)
173 HOOHANA ST, SUITE 104
KAHULUI, HI 96732

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982094975, enumerated as an "organization" on January 28, 2015.

The provider is located at 173 HOOHANA ST SUITE 104 KAHULUI, HI 96732 and the phone number is (808) 871-7222.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.