DR. BRUCE DAVID GAYNOR MD
NPI 1972534253
Specialist in Santa Rosa, CA

NPI Status: Active since July 05, 2006

Contact Information

4720 HOEN AVE
SANTA ROSA, CA
ZIP 95405
Phone: (707) 527-8222
Fax: (707) 527-5318

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  • Individual
  • Male
  • Specialist

About BRUCE GAYNOR

This page provides the complete NPI Profile along with additional information for Bruce Gaynor, a provider established in Santa Rosa, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1972534253 assigned on July 2006. The practitioner's primary taxonomy code is 174400000X with license number G845350 (CA). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1972534253
Provider Name
DR. BRUCE DAVID GAYNOR MD
Gender
Male
Entity Type
Individual
Location Address
4720 HOEN AVE SANTA ROSA, CA 95405
Location Phone
(707) 527-8222
Location Fax
(707) 527-5318
Mailing Address
4720 HOEN AVE SANTA ROSA, CA 95405
Mailing Phone
(707) 527-8222
Mailing Fax
(707) 527-5318
Is Sole Proprietor?
Yes
Enumeration Date
07-05-2006
Last Update Date
06-16-2008
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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
License No.
G845350
License State
CA
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.

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)
1207W00000XAllopathic & Osteopathic Physicians

Ophthalmology

G845350 (CA)

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.

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
00G845350MEDICARE PIN (08)CA 
3899760001MEDICARE NSC (07)CA 
180041368OTHER (01)CAMEDICARE RAILROAD
00G845350MEDICAID (05)CA 
G70889MEDICARE UPIN (02)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 1972534253, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
3
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 7 → 14 → 5 5 → 10 → 1 4 → 8 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 4 + 2 + 1 + 0 + 3 + 8 + 2 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1972534253.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Ophthalmology
4720 HOEN AVE
SANTA ROSA, CA 95405
Internal Medicine
4720 HOEN AVE
SANTA ROSA, CA 95405
Technician/Technologist (Ophthalmic)
4720 HOEN AVE
SANTA ROSA, CA 95405
Specialist
4720 HOEN AVE
SANTA ROSA, CA 95405
Anesthesiology (Pain Medicine)
4720 HOEN AVE
SANTA ROSA, CA 95405

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972534253, enumerated as an "individual" on July 05, 2006.

The provider is located at 4720 HOEN AVE SANTA ROSA, CA 95405 and the phone number is (707) 527-8222.

Specialist with taxonomy code 174400000X.

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