ROSS UNGUREN
NPI 1649622549
Hearing Instrument Specialist in Santa Rosa, CA

NPI Status: Active since July 05, 2016

Contact Information

1421 GUERNEVILLE RD
STE 224
SANTA ROSA, CA
ZIP 95403
Phone: (707) 544-4433

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  • Individual
  • Male
  • Hearing Instrument Specialist

About ROSS UNGUREN

This page provides the complete NPI Profile along with additional information for Ross Unguren, a provider established in Santa Rosa, California with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1649622549 assigned on July 2016. The practitioner's primary taxonomy code is 237700000X with license number HT 9486 (CA). The provider is registered as an individual and his NPI record was last updated 10 years ago.

NPI
1649622549
Provider Name
ROSS UNGUREN
Gender
Male
Entity Type
Individual
Location Address
1421 GUERNEVILLE RD STE 224 SANTA ROSA, CA 95403
Location Phone
(707) 544-4433
Mailing Address
1421 GUERNEVILLE RD STE 224 SANTA ROSA, CA 95403
Is Sole Proprietor?
No
Enumeration Date
07-05-2016
Last Update Date
07-05-2016
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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

Hearing Instrument Specialist

Taxonomy Code
237700000X
Type
Speech, Language and Hearing Service Providers
License No.
HT 9486
License State
CA
Taxonomy Description
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society

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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 1649622549, 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.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
Check
9
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 4 → 8 6 → 12 → 3 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 1 + 2 + 2 + 4 + 5 + 8 + 24 = 71

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.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1649622549.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Dentist (Orthodontics and Dentofacial Orthopedics)
1421 GUERNEVILLE RD, SUITE 102
SANTA ROSA, CA 95403
Dentist (Periodontics)
1421 GUERNEVILLE RD, SUITE 102
SANTA ROSA, CA 95403
Dentist (Pediatric Dentistry)
1421 GUERNEVILLE RD, SUITE 102
SANTA ROSA, CA 95403
Audiologist-Hearing Aid Fitter
1421 GUERNEVILLE RD, STE 224
SANTA ROSA, CA 95403
Marriage & Family Therapist
1421 GUERNEVILLE RD, SUITE 114
SANTA ROSA, CA 95403
Dentist (Pediatric Dentistry)
1421 GUERNEVILLE RD, SUITE 102
SANTA ROSA, CA 95403
Audiologist-Hearing Aid Fitter
1421 GUERNEVILLE RD, SUITE 224
SANTA ROSA, CA 95403
Hearing Instrument Specialist
1421 GUERNEVILLE RD, 224
SANTA ROSA, CA 95403
Counselor (Mental Health)
1421 GUERNEVILLE RD, SUITE 218
SANTA ROSA, CA 95403
Counselor (Mental Health)
1421 GUERNEVILLE RD, SUITE 218
SANTA ROSA, CA 95403
Social Worker (Clinical)
1421 GUERNEVILLE RD, #228
SANTA ROSA, CA 95403
Counselor (Mental Health)
1421 GUERNEVILLE RD
SANTA ROSA, CA 95403
Dentist (General Practice)
1421 GUERNEVILLE RD, #102
SANTA ROSA, CA 95403
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1421 GUERNEVILLE RD, SUITE 114
SANTA ROSA, CA 95403
Marriage & Family Therapist
1421 GUERNEVILLE RD
SANTA ROSA, CA 95403
Dentist
1421 GUERNEVILLE RD, #102
SANTA ROSA, CA 95403

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649622549, enumerated as an "individual" on July 05, 2016.

The provider is located at 1421 GUERNEVILLE RD STE 224 SANTA ROSA, CA 95403 and the phone number is (707) 544-4433.

Hearing Instrument Specialist with taxonomy code 237700000X.