TIAGO ERNESTO REYES CASTRO MD
NPI 1134709330
Internal Medicine - Rheumatology in Mansfield, OH
NPI Status: Active since April 12, 2021
Contact Information
335 GLESSNER AVE
MANSFIELD, OH
ZIP 44903
Phone: (419) 756-8899
Fax: (419) 756-6004
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Male
- Internal Medicine
- Rheumatology
About TIAGO REYES CASTRO
This page provides the complete NPI Profile along with additional information for Tiago Reyes Castro, an internist established in Mansfield, Ohio with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1134709330 assigned on April 2021. The practitioner's primary taxonomy code is 207RR0500X with license number 35.154737 (OH). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1134709330
- Provider Name
- TIAGO ERNESTO REYES CASTRO MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 335 GLESSNER AVE MANSFIELD, OH 44903
- Location Phone
- (419) 756-8899
- Location Fax
- (419) 756-6004
- Mailing Address
- PO BOX 7527 DUBLIN, OH 43017
- Mailing Fax
- (614) 544-6370
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-12-2021
- Last Update Date
- 06-23-2026
- Code Navigator
An internist like Tiago Reyes Castro 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 Rheumatology
- Taxonomy Code
- 207RR0500X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 35.154737
- License State
- OH
- 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 1134709330, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
MANSFIELD, OH 44903
MANSFIELD, OH 44903
MANSFIELD, OH 44903
MANSFIELD, OH 44903
MANSFIELD, OH 44903
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1134709330, enumerated as an "individual" on April 12, 2021.
The provider is located at 335 GLESSNER AVE MANSFIELD, OH 44903 and the phone number is (419) 756-8899.
Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.
