DR. DOUGLAS NIELSEN RIIS DMD
NPI 1538296629
Dentist - Prosthodontics in Boston, MA
NPI Status: Active since February 27, 2007
Contact Information
274 NEWBURY ST
BOSTON, MA
ZIP 02116
Phone: (617) 262-0106
- Individual
- Male
- Dentist
- Prosthodontics
About DOUGLAS RIIS
This page provides the complete NPI Profile along with additional information for Douglas Riis, a provider established in Boston, Massachusetts with a medical specialization in Dentist, focusing in prosthodontics . The healthcare provider is registered in the NPI registry with number 1538296629 assigned on February 2007. The practitioner's primary taxonomy code is 1223P0700X with license number 10399 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1538296629
- Provider Name
- DR. DOUGLAS NIELSEN RIIS DMD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 274 NEWBURY ST BOSTON, MA 02116
- Location Phone
- (617) 262-0106
- Mailing Address
- 46 WALPOLE ST PO BOX 70 DOVER, MA 02030
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-27-2007
- Last Update Date
- 07-08-2007
- Code Navigator
A dentist like Douglas Riis is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.
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
Dentist Prosthodontics
- Taxonomy Code
- 1223P0700X
- Type
- Dental Providers
- License No.
- 10399
- License State
- MA
- Taxonomy Description
- That branch of dentistry pertaining to the restoration and maintenance of oral functions, comfort, appearance and health of the patient by the restoration of natural teeth and/or the replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes.
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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 1538296629, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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 71 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 10 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1538296629, enumerated as an "individual" on February 27, 2007.
The provider is located at 274 NEWBURY ST BOSTON, MA 02116 and the phone number is (617) 262-0106.
Dentist with taxonomy code 1223P0700X and a focus in Prosthodontics.
