FELICE SUSANNE O'RYAN DDS
NPI 1255419834
Dentist - Oral and Maxillofacial Surgery in Oakland, CA

NPI Status: Active since November 01, 2006

Contact Information

275 W MACARTHUR
OAKLAND, CA
ZIP 94611
Phone: (510) 752-1000

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  • Individual
  • Female
  • Dentist
  • Oral and Maxillofacial Surgery

About FELICE O'RYAN

This page provides the complete NPI Profile along with additional information for Felice O'ryan, a provider established in Oakland, California with a medical specialization in Dentist, focusing in oral and maxillofacial surgery . The healthcare provider is registered in the NPI registry with number 1255419834 assigned on November 2006. The practitioner's primary taxonomy code is 1223S0112X with license number 28366 (CA). The provider is registered as an individual and her NPI record was last updated 12 years ago.

NPI
1255419834
Provider Name
FELICE SUSANNE O'RYAN DDS
Gender
Female
Entity Type
Individual
Location Address
275 W MACARTHUR OAKLAND, CA 94611
Location Phone
(510) 752-1000
Mailing Address
275 W MACARTHUR OAKLAND, CA 94611
Mailing Phone
(510) 752-1000
Is Sole Proprietor?
No
Enumeration Date
11-01-2006
Last Update Date
10-27-2014
Code Navigator

A dentist like Felice O'ryan 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.

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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 Oral and Maxillofacial Surgery

Taxonomy Code
1223S0112X
Type
Dental Providers
License No.
28366
License State
CA
Taxonomy Description
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

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
T93509MEDICARE UPIN (02) 
DS0283660MEDICARE ID-TYPE UNSPECIFIED (04) 

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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 1255419834, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
5
Unchanged
Pos 5
4
Doubled → 8
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
3
Doubled → 6
Check
4
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 5 → 10 → 1 4 → 8 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 1 + 0 + 5 + 8 + 1 + 1 + 8 + 8 + 6 + 24 = 66

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1255419834.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Emergency Medicine
275 W MACARTHUR
OAKLAND, CA 94611
Radiology (Vascular & Interventional Radiology)
275 W MACARTHUR
OAKLAND, CA 94611
Pathology (Anatomic Pathology & Clinical Pathology)
275 W MACARTHUR
OAKLAND, CA 94611
Emergency Medicine
275 W MACARTHUR
OAKLAND, CA 94611
Emergency Medicine
275 W MACARTHUR
OAKLAND, CA 94611
Internal Medicine (Interventional Cardiology)
275 W MACARTHUR
OAKLAND, CA 94611
Radiology (Diagnostic Radiology)
275 W MACARTHUR
OAKLAND, CA 94611
Internal Medicine (Cardiovascular Disease)
275 W MACARTHUR
OAKLAND, CA 94611
Anesthesiology
275 W MACARTHUR
OAKLAND, CA 94611
Otolaryngology
275 W MACARTHUR
OAKLAND, CA 94611
Emergency Medicine
275 W MACARTHUR
OAKLAND, CA 94611
Internal Medicine (Sports Medicine)
275 W MACARTHUR
OAKLAND, CA 94611
Anesthesiology
275 W MACARTHUR
OAKLAND, CA 94611
Thoracic Surgery (Cardiothoracic Vascular Surgery)
275 W MACARTHUR
OAKLAND, CA 94611
Podiatrist
275 W MACARTHUR
OAKLAND, CA 94611
Otolaryngology
275 W MACARTHUR
OAKLAND, CA 94611
Anesthesiology
275 W MACARTHUR
OAKLAND, CA 94611
Physical Therapist
275 W MACARTHUR
OAKLAND, CA 94611
Psychologist
275 W MACARTHUR
OAKLAND, CA 94611
Physical Therapist
275 W MACARTHUR
OAKLAND, CA 94611

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1255419834, enumerated as an "individual" on November 01, 2006.

The provider is located at 275 W MACARTHUR OAKLAND, CA 94611 and the phone number is (510) 752-1000.

Dentist with taxonomy code 1223S0112X and a focus in Oral and Maxillofacial Surgery.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.