DR. TRENNDA RITTENBACH O.D.
NPI 1427207497
Optometrist in Sunnyvale, CA
NPI Status: Active since September 15, 2008
Contact Information
323 N MATHILDA AVE
SUNNYVALE, CA
ZIP 94085
Phone: (408) 524-5900
- Individual
- Female
- Optometrist
About TRENNDA RITTENBACH
This page provides the complete NPI Profile along with additional information for Trennda Rittenbach, a provider established in Sunnyvale, California with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1427207497 assigned on September 2008. The practitioner's primary taxonomy code is 152W00000X with license number OPT15049 (CA). The provider is registered as an individual and her NPI record was last updated 11 years ago.
- NPI
- 1427207497
- Provider Name
- DR. TRENNDA RITTENBACH O.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 323 N MATHILDA AVE SUNNYVALE, CA 94085
- Location Phone
- (408) 524-5900
- Mailing Address
- 2350 W. EL CAMINO REAL 2ND FLOOR MOUNTAIN VIEW, CA 94040
- Mailing Phone
- (408) 524-5900
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-15-2008
- Last Update Date
- 04-13-2015
- 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
Optometrist
- Taxonomy Code
- 152W00000X
- Type
- Eye and Vision Services Providers
- License No.
- OPT15049
- License State
- CA
- Taxonomy Description
- Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
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 | 152W00000X | Eye and Vision Services Providers | Optometrist | 3156 (MN) |
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Exam of visual field with extended testing
Imaging of optic nerve
New patient office or other outpatient visit, 30-44 minutes
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
This service was performed 101 times for 100 patientsThis is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 41 times for 41 patientsAn extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
This service was performed 41 times for 41 patientsImaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
This service was performed 59 times for 59 patientsThis service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
This service was performed 19 times for 19 patientsReviews for DR. TRENNDA RITTENBACH O.D.
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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 1427207497, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 4 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1427207497, enumerated as an "individual" on September 15, 2008.
The provider is located at 323 N MATHILDA AVE SUNNYVALE, CA 94085 and the phone number is (408) 524-5900.
Optometrist with taxonomy code 152W00000X.
