DR. ROY P. LIU M.D.
NPI 1033408372
Internal Medicine - Gastroenterology in Loma Linda, CA
NPI Status: Active since April 06, 2011
Contact Information
11234 ANDERSON ST RM 1556
LOMA LINDA, CA
ZIP 92354
Phone: (909) 558-4905
Fax: (909) 558-0274
- Individual
- Male
- Internal Medicine
- Gastroenterology
About ROY LIU
This page provides the complete NPI Profile along with additional information for Roy Liu, an internist established in Loma Linda, California with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1033408372 assigned on April 2011. The practitioner's primary taxonomy code is 207RG0100X with license number A146299 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.
- NPI
- 1033408372
- Provider Name
- DR. ROY P. LIU M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 11234 ANDERSON ST RM 1556 LOMA LINDA, CA 92354
- Location Phone
- (909) 558-4905
- Location Fax
- (909) 558-0274
- Mailing Address
- 11234 ANDERSON ST RM 1556 LOMA LINDA, CA 92354
- Mailing Phone
- (909) 558-4905
- Mailing Fax
- (909) 558-0274
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 04-06-2011
- Last Update Date
- 07-21-2022
- Code Navigator
An internist like Roy Liu 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 Gastroenterology
- Taxonomy Code
- 207RG0100X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A146299
- License State
- CA
- Taxonomy Description
- An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 0 | 3 | 3 | 4 | 0 | 8 | 3 | 7 | 2 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 0 | 6 | 3 | 8 | 0 | 16 | 3 | 14 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 0 + 6 + 3 + 8 + 0 + 1 + 6 + 3 + 1 + 4 + 24 = 58 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 58 = 2 | 2 | ||||||||
The NPI number 1033408372 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1033408372, enumerated in the NPI registry as an "individual" on April 06, 2011
The provider is located at 11234 Anderson St Rm 1556 Loma Linda, Ca 92354 and the phone number is (909) 558-4905
The provider's speciality is Internal Medicine with taxonomy code 207RG0100X with a focus in Gastroenterology
This NPI record was last updated on April 06, 2011. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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