DR. CRAIG IMRE HERRFORTH MD
NPI 1104404060
Internal Medicine - Nephrology in Rock Hill, SC
- Individual
- Male
- Internal Medicine
- Nephrology
About CRAIG HERRFORTH
This page provides the complete NPI Profile along with additional information for Craig Herrforth, an internist established in Rock Hill, South Carolina with a medical specialization in Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1104404060 assigned on March 2021. The practitioner's primary taxonomy code is 207RN0300X with license number LL86354 (SC). The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1104404060
- Provider Name
- DR. CRAIG IMRE HERRFORTH MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1436 RIVERCHASE BLVD ROCK HILL, SC 29732
- Location Phone
- (803) 329-2636
- Mailing Address
- 1436 RIVERCHASE BLVD ROCK HILL, SC 29732
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-31-2021
- Last Update Date
- 07-09-2026
- Code Navigator
An internist like Craig Herrforth 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
Secondary Locations
- 322 S Main St
Lancaster, SC 29720
(803) 286-8446
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 Nephrology
- Taxonomy Code
- 207RN0300X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- LL86354
- License State
- SC
- Taxonomy Description
- An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
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 | 390200000X | Student, Health Care | Student in an Organized Health Care Education/Training Program |
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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 1104404060, 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 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 50 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 16 providers are registered at the same or a nearby location.
ROCK HILL, SC 29732
ROCK HILL, SC 29732
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1104404060, enumerated as an "individual" on March 31, 2021.
The provider is located at 1436 RIVERCHASE BLVD ROCK HILL, SC 29732 and the phone number is (803) 329-2636.
Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.
