DERMATOLOGY ASSOCIATES OF SONOMA COUNTY
NPI 1154496248
Specialist in Santa Rosa, CA

NPI Status: Active since November 22, 2006

Contact Information

990 SONOMA AVE STE 2
SANTA ROSA, CA
ZIP 95404
Phone: (707) 579-4239
Fax: (707) 579-0459

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  • Organization
  • Specialist
  • CLIA Number: 05D2150673
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 10-31-2025

About DERMATOLOGY ASSOCIATES OF SONOMA COUNTY

This page provides the complete NPI Profile along with additional information for Dermatology Associates Of Sonoma County, a provider established in Santa Rosa, California operating as a Specialist. The healthcare provider is registered in the NPI registry with number 1154496248 assigned on November 2006. The practitioner's primary taxonomy code is 174400000X. The provider is registered as an organization and their NPI record was last updated 6 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The provider's is doing business as Dermatology Associates Of Sonoma County. The authorized official of this NPI record is Dale Raymond Westrom M.d., Ph.d. (President)

NPI
1154496248
Provider Legal Name
REDWOOD EMPIRE DERMATOLOGY INC
Other Organization Name
DERMATOLOGY ASSOCIATES OF SONOMA COUNTY
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
990 SONOMA AVE STE 2 SANTA ROSA, CA 95404
Location Phone
(707) 579-4239
Location Fax
(707) 579-0459
Mailing Address
990 SONOMA AVE STE 2 SANTA ROSA, CA 95404
Mailing Phone
(707) 579-4239
Mailing Fax
(707) 579-0459
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
11-22-2006
Last Update Date
08-22-2020
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DALE RAYMOND WESTROM M.D., PH.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(707) 579-4239

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D2150673
Facility Type
Physician Office
Certificate Effective Date
May 24, 2023
Certificate Expiration Date
October 31, 2025
Laboratory Director
DR. JEFFREY COLLINS
Certificate Type
Certificate of Compliance
Certificate Type Description
This CLIA certificate is issued to Dermatology Associates Of Sonoma County after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.

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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 1154496248, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
1
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
4
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
Check
8
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 6 → 12 → 3 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 0 + 4 + 8 + 9 + 1 + 2 + 2 + 8 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1154496248.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Nurse Practitioner
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404
Dermatology
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404
Nurse Practitioner
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404
Internal Medicine (Cardiovascular Disease)
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404
Internal Medicine (Cardiovascular Disease)
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404
Internal Medicine (Cardiovascular Disease)
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404
Internal Medicine (Cardiovascular Disease)
990 SONOMA AVE STE 2
SANTA ROSA, CA 95404

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1154496248, enumerated as an "organization" on November 22, 2006.

The provider is located at 990 SONOMA AVE STE 2 SANTA ROSA, CA 95404 and the phone number is (707) 579-4239.

Specialist with taxonomy code 174400000X.