DR. ROBERT JOHN OLSSON AU.D.
NPI 1164493656
Audiologist-Hearing Aid Fitter in San Diego, CA
NPI Status: Active since February 01, 2006
Contact Information
34520 BOB WILSON DR
ENT DEPT -- BLDG 2, 2ND FLOOR
SAN DIEGO, CA
ZIP 92134
Phone: (619) 532-8164
Fax: (619) 532-7243
- Individual
- Male
- Audiologist-Hearing Aid Fitter
About ROBERT OLSSON
This page provides the complete NPI Profile along with additional information for Robert Olsson, a provider established in San Diego, California with a medical specialization in Audiologist-hearing Aid Fitter. The healthcare provider is registered in the NPI registry with number 1164493656 assigned on February 2006. The practitioner's primary taxonomy code is 237600000X with license number HA1615 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1164493656
- Provider Name
- DR. ROBERT JOHN OLSSON AU.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 34520 BOB WILSON DR ENT DEPT -- BLDG 2, 2ND FLOOR SAN DIEGO, CA 92134
- Location Phone
- (619) 532-8164
- Location Fax
- (619) 532-7243
- Mailing Address
- 5025 LAUREL ST SAN DIEGO, CA 92105
- Mailing Phone
- (619) 892-3500
- Mailing Fax
- (619) 532-7243
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-01-2006
- Last Update Date
- 09-11-2025
- 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
Audiologist-Hearing Aid Fitter
- Taxonomy Code
- 237600000X
- Type
- Speech, Language and Hearing Service Providers
- License No.
- HA1615
- License State
- CA
- Taxonomy Description
- An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.
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 | 231H00000X | Speech, Language and Hearing Service Providers | Audiologist | AU787 (CA) |
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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 1164493656, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
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 64 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.
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
SAN DIEGO, CA 92134
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1164493656, enumerated as an "individual" on February 01, 2006.
The provider is located at 34520 BOB WILSON DR ENT DEPT -- BLDG 2, 2ND FLOOR SAN DIEGO, CA 92134 and the phone number is (619) 532-8164.
Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.
