WILLIAM R PROTZER MD
NPI 1912906843
Radiology - Diagnostic Radiology in Dayton, OH
NPI Status: Active since July 21, 2005
Contact Information
30 E APPLE ST
SUITE 5254
DAYTON, OH
ZIP 45409
Phone: (937) 208-4200
Fax: (937) 208-4205
- Individual
- Male
- Radiology
- Diagnostic Radiology
- Accepts Insurance
About WILLIAM PROTZER
This page provides the complete NPI Profile along with additional information for William Protzer, a provider established in Dayton, Ohio with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1912906843 assigned on July 2005. The practitioner's primary taxonomy code is 2085R0202X with license number 35062539 (OH). The provider is registered as an individual and his NPI record was last updated May 2026.
- NPI
- 1912906843
- Provider Name
- WILLIAM R PROTZER MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 30 E APPLE ST SUITE 5254 DAYTON, OH 45409
- Location Phone
- (937) 208-4200
- Location Fax
- (937) 208-4205
- Mailing Address
- 30 E APPLE ST SUITE 5254 DAYTON, OH 45409
- Mailing Phone
- (937) 208-4200
- Mailing Fax
- (937) 208-4205
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-21-2005
- Last Update Date
- 05-31-2026
- Code Navigator
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
Radiology Diagnostic Radiology
- Taxonomy Code
- 2085R0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 35062539
- License State
- OH
- Taxonomy Description
- A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Anthem Bronze Pathway 10600 ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Bronze Pathway 10600 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Bronze Pathway 8500 for HSA - HMO
- Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Heart Healthy Bronze Pathway 6000 ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Heart Healthy Silver Pathway 5000 ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway 4000 ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway 4000 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway 5500 for HSA - HMO
- Anthem Silver Pathway 6000 Standard ($0 Virtual PCP + $0 Select Drugs) - HMO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 30012319 | OTHER (01) | OH | RR MDCR PIN NUMBER |
| 000000213793 | OTHER (01) | OH | BC/BS INDIVIDUAL PIN NO |
| 0913800 | MEDICAID (05) | OH |
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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 1912906843, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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 67 is 70. 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.
DAYTON, OH 45409
DAYTON, OH 45409
DAYTON, OH 45409
DAYTON, OH 45409
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1912906843, enumerated as an "individual" on July 21, 2005.
The provider is located at 30 E APPLE ST SUITE 5254 DAYTON, OH 45409 and the phone number is (937) 208-4200.
Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.
The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield, Medicare,. Please consult your insurance carrier or call the provider to verify.
