DR. DENNIS MALCOLM MCLEOD MD
NPI 1407919939
Otolaryngology in Petaluma, CA

NPI Status: Active since December 18, 2006

Contact Information

106 LYNCH CREEK WY
SUITE 9A
PETALUMA, CA
ZIP 94954
Phone: (707) 762-3561
Fax: (707) 762-5174

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  • Individual
  • Male
  • Otolaryngology

About DENNIS MCLEOD

This page provides the complete NPI Profile along with additional information for Dennis Mcleod, a provider established in Petaluma, California with a medical specialization in Otolaryngology. The healthcare provider is registered in the NPI registry with number 1407919939 assigned on December 2006. The practitioner's primary taxonomy code is 207Y00000X with license number G22981 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1407919939
Provider Name
DR. DENNIS MALCOLM MCLEOD MD
Gender
Male
Entity Type
Individual
Location Address
106 LYNCH CREEK WY SUITE 9A PETALUMA, CA 94954
Location Phone
(707) 762-3561
Location Fax
(707) 762-5174
Mailing Address
106 LYNCH CREEK WAY STE 9A PETALUMA, CA 94954
Mailing Phone
(707) 778-7862
Mailing Fax
(707) 762-5174
Is Sole Proprietor?
No
Enumeration Date
12-18-2006
Last Update Date
02-11-2020
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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

Otolaryngology

Taxonomy Code
207Y00000X
Type
Allopathic & Osteopathic Physicians
License No.
G22981
License State
CA
Taxonomy Description
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

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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 1407919939, 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
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
3
Doubled → 6
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 0 → 0 9 → 18 → 9 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 8 + 1 + 1 + 8 + 9 + 6 + 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 1407919939.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Audiologist
106 LYNCH CREEK WY, SUITE 9A
PETALUMA, CA 94954

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407919939, enumerated as an "individual" on December 18, 2006.

The provider is located at 106 LYNCH CREEK WY SUITE 9A PETALUMA, CA 94954 and the phone number is (707) 762-3561.

Otolaryngology with taxonomy code 207Y00000X.