DR. GRAYSON W HOOPER D.O.
NPI 1194045203
Radiology - Diagnostic Radiology in Apo, AE
NPI Status: Active since June 11, 2010
Contact Information
LANDSTUHL REGIONAL MEDICAL CENTER
UNIT 33100
APO, AE
ZIP 09180
Phone: (314) 590-7815
- Individual
- Male
- Years of Experience 16
- Radiology
- Diagnostic Radiology
- May Accept Medicare Approved Payment
- PECOS Enrolled
About GRAYSON HOOPER
This page provides the complete NPI Profile along with additional information for Grayson Hooper, a provider established in Apo, with a medical specialization in Radiology, focusing in diagnostic radiology and more than 16 years of experience. He graduated from West Virginia University School Of Medicine in 2010. The healthcare provider is registered in the NPI registry with number 1194045203 assigned on June 2010. The practitioner's primary taxonomy code is 2085R0202X with license number DOS-1420 (HI). The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1194045203
- Provider Name
- DR. GRAYSON W HOOPER D.O.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- LANDSTUHL REGIONAL MEDICAL CENTER UNIT 33100 APO, AE 09180
- Location Phone
- (314) 590-7815
- Mailing Address
- LANDSTUHL REGIONAL MEDICAL CENTER UNIT 33100 APO, AE 09180
- Mailing Phone
- (314) 590-7815
- Medical School Name
- WEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
- Graduation Year
- 2010
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-11-2010
- Last Update Date
- 02-19-2026
- Code Navigator
Location Map
Secondary Locations
- 1001 Sam Perry Blvd
Fredericksburg, VA 22401
(540) 741-5610
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
Radiology Diagnostic Radiology
- Taxonomy Code
- 2085R0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- DOS-1420
- License State
- HI
- Taxonomy Description
- A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
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 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 0102205109 (VA) |
Medicare Participation & PECOS Enrollment Status
Grayson Hooper is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.
Grayson Hooper 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
PECOS PAC ID: 2961763941
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20251203000295
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Maybe
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.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 DR. GRAYSON W HOOPER D.O.
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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 1194045203, we treat the final digit (3) 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 3).
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 47 is 50. 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.
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO,AE, GERMANY 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
APO, AE 09180
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1194045203, enumerated as an "individual" on June 11, 2010.
The provider is located at LANDSTUHL REGIONAL MEDICAL CENTER UNIT 33100 APO, AE 09180 and the phone number is (314) 590-7815.
Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.
