MR. RONALD ALVIN WELCH PT
NPI 1356418628
Physical Therapist - Orthopedic in Yorba Linda, CA

NPI Status: Active since November 29, 2006

Contact Information

22550 SAVI RANCH PKWY
YORBA LINDA, CA
ZIP 92887
Phone: (714) 685-3587
Fax: (714) 748-7622

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  • Individual
  • Male
  • Physical Therapist
  • Orthopedic

About RONALD WELCH

This page provides the complete NPI Profile along with additional information for Ronald Welch, a provider established in Yorba Linda, California with a medical specialization in Physical Therapist, focusing in orthopedic . The healthcare provider is registered in the NPI registry with number 1356418628 assigned on November 2006. The practitioner's primary taxonomy code is 2251X0800X with license number PT14191 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1356418628
Provider Name
MR. RONALD ALVIN WELCH PT
Gender
Male
Entity Type
Individual
Location Address
22550 SAVI RANCH PKWY YORBA LINDA, CA 92887
Location Phone
(714) 685-3587
Location Fax
(714) 748-7622
Mailing Address
12686 AMBERHILL AVE EASTVALE, CA 92880
Mailing Phone
(909) 908-5592
Is Sole Proprietor?
No
Enumeration Date
11-29-2006
Last Update Date
12-01-2021
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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

Physical Therapist Orthopedic

Taxonomy Code
2251X0800X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
PT14191
License State
CA
Taxonomy Description
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Orthopaedic Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science; pathology/pathophysiology, pain science, medical and surgical considerations, orthopaedic physical therapy theory and practice, and critical inquiry for evidence-based practice.

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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 1356418628, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
3
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
6
Unchanged
Pos 5
4
Doubled → 8
Pos 6
1
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
6
Unchanged
Pos 9
2
Doubled → 4
Check
8
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 5 → 10 → 1 4 → 8 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 0 + 6 + 8 + 1 + 1 + 6 + 6 + 4 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1356418628.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pharmacist
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Pharmacist
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Pharmacist
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Registered Nurse
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Registered Nurse
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Student in an Organized Health Care Education/Training Program
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY, KAISER PERMANENTE
YORBA LINDA, CA 92887
Internal Medicine (Nephrology)
22550 SAVI RANCH PKWY, NEPHROLOGY DEPT
YORBA LINDA, CA 92887
Student in an Organized Health Care Education/Training Program
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Internal Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Pediatrics
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Obstetrics & Gynecology
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Ophthalmology
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1356418628, enumerated as an "individual" on November 29, 2006.

The provider is located at 22550 SAVI RANCH PKWY YORBA LINDA, CA 92887 and the phone number is (714) 685-3587.

Physical Therapist with taxonomy code 2251X0800X and a focus in Orthopedic.