RYAN SIU
NPI 1831781442
Orthopaedic Surgery in Apo, AP
NPI Status: Active since February 04, 2021
Contact Information
374TH MEDICAL GROUP
UNIT 5071
APO, AP
ZIP 96328
Phone: (315) 225-8864
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Male
- Orthopaedic Surgery
- PECOS Enrolled
About RYAN SIU
This page provides the complete NPI Profile along with additional information for Ryan Siu, a provider established in Apo, with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1831781442 assigned on February 2021. The practitioner's primary taxonomy code is 207X00000X with license number 0101277519 (VA). The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1831781442
- Provider Name
- RYAN SIU
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 374TH MEDICAL GROUP UNIT 5071 APO, AP 96328
- Location Phone
- (315) 225-8864
- Mailing Address
- UNIT 5071 BOX 374TH APO, AP 96328
- Mailing Phone
- (315) 225-8864
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-04-2021
- Last Update Date
- 07-10-2026
- Code Navigator
Location Map
Secondary Locations
- 3551 Roger Brooke Dr
Jbsa Ft Sam Houston, TX 78234
(210) 916-1284
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
Orthopaedic Surgery
- Taxonomy Code
- 207X00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 0101277519
- License State
- VA
- Taxonomy Description
- An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 208D00000X | Allopathic & Osteopathic Physicians | General Practice | 0101277519 (VA) |
| 2 | 390200000X | Student, Health Care | Student in an Organized Health Care Education/Training Program |
Medicare Participation & PECOS Enrollment Status
Ryan Siu is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Reviews for RYAN SIU
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 1831781442, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).
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 68 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 14 providers are registered at the same or a nearby location.
APO, AP 96328
APO, AP 96328
APO, AP 96328
APO, AP 96328
APO, AP 96328
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1831781442, enumerated as an "individual" on February 04, 2021.
The provider is located at 374TH MEDICAL GROUP UNIT 5071 APO, AP 96328 and the phone number is (315) 225-8864.
Orthopaedic Surgery with taxonomy code 207X00000X.
