NICHOLAS H. MAST, M.D., INC.
NPI 1235490061
Orthopaedic Surgery in Novato, CA

NPI Status: Active since June 07, 2012

Contact Information

100 ROWLAND WAY STE 200
NOVATO, CA
ZIP 94945
Phone: (415) 530-5330
Fax: (415) 530-5333

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  • Organization
  • Orthopaedic Surgery

About NICHOLAS H. MAST, M.D., INC.

This page provides the complete NPI Profile along with additional information for Nicholas H. Mast, M.d., Inc., a provider established in Novato, California operating as a Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1235490061 assigned on June 2012. The practitioner's primary taxonomy code is 207X00000X with license number A98951 (CA). The provider is registered as an organization and their NPI record was last updated 3 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 authorized official of this NPI record is Nicholas H Mast Md (Owner)

NPI
1235490061
Provider Name
NICHOLAS H. MAST, M.D., INC.
Entity Type
Organization
Location Address
100 ROWLAND WAY STE 200 NOVATO, CA 94945
Location Phone
(415) 530-5330
Location Fax
(415) 530-5333
Mailing Address
8 ALPINE LILY PL SAN RAFAEL, CA 94903
Mailing Phone
(415) 353-6380
Mailing Fax
(415) 530-5333
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-07-2012
Last Update Date
01-09-2023
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Location Map

Secondary Locations

  • 2250 Hayes St Ste 208
    San Francisco, CA 94117
    (415) 530-5330
  • 8 Alpine Lily Pl
    San Rafael, CA 94903
    (415) 717-9776

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

Orthopaedic Surgery

Taxonomy Code
207X00000X
Type
Allopathic & Osteopathic Physicians
License No.
A98951
License State
CA
Taxonomy Description
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

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

NICHOLAS H MAST MD

Authorized Official Title
OWNER
Authorized Official Phone
(415) 530-5330

Reviews for NICHOLAS H. MAST, M.D., INC.

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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 1235490061, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 6 + 5 + 8 + 9 + 0 + 0 + 1 + 2 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1235490061.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Non-Pharmacy Dispensing Site
100 ROWLAND WAY STE 200
NOVATO, CA 94945
Orthopaedic Surgery
100 ROWLAND WAY STE 200
NOVATO, CA 94945
Orthopaedic Surgery
100 ROWLAND WAY STE 200
NOVATO, CA 94945

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235490061, enumerated as an "organization" on June 07, 2012.

The provider is located at 100 ROWLAND WAY STE 200 NOVATO, CA 94945 and the phone number is (415) 530-5330.

Orthopaedic Surgery with taxonomy code 207X00000X.