MICHAEL L. SMALL, M.D. A MEDICAL CORPORATION
NPI 1548571177
Thoracic Surgery (Cardiothoracic Vascular Surgery) in San Francisco, CA

NPI Status: Active since June 29, 2010

Contact Information

2100 WEBSTER ST
SUITE 200
SAN FRANCISCO, CA
ZIP 94115
Phone: (415) 923-3866
Fax: (415) 923-3656

NPI Profile Information
Primary Taxonomy
Group Taxonomy
Authorized Official
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Thoracic Surgery (Cardiothoracic Vascula...

About MICHAEL L. SMALL, M.D. A MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for Michael L. Small, M.d. A Medical Corporation, a provider established in San Francisco, California operating as a Thoracic Surgery (cardiothoracic Vascular Surgery). The healthcare provider is registered in the NPI registry with number 1548571177 assigned on June 2010. The practitioner's primary taxonomy code is 208G00000X with license number G10566 (CA). The provider is registered as an organization and their NPI record was last updated 16 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 Dr. Michael L. Small M.d. (President)

NPI: 1548571177
Provider Name: MICHAEL L. SMALL, M.D. A MEDICAL CORPORATION
Entity Type: Organization
Location Address: 2100 WEBSTER ST SUITE 200 SAN FRANCISCO, CA 94115
Location Phone: (415) 923-3866
Location Fax: (415) 923-3656
Mailing Address: 2100 WEBSTER ST SUITE 200 SAN FRANCISCO, CA 94115
Mailing Phone: (415) 923-3866
Mailing Fax: (415) 923-3656
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 06-29-2010
Last Update Date: 06-29-2010
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Location Map

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: Thoracic Surgery (Cardiothoracic Vascular Surgery)
Taxonomy Code: 208G00000X
Type: Allopathic & Osteopathic Physicians
License No.: G10566
License State: CA
Taxonomy Description: A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

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: DR. MICHAEL L. SMALL M.D.
Authorized Official Title: PRESIDENT
Authorized Official Phone: (415) 923-3866

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 1548571177, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

Check

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 5 → 10 → 1 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 1 + 0 + 7 + 2 + 1 + 1 + 4 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1548571177.

Other Providers at the Same Location

The following 20 providers are registered at the same or a nearby location.

DR. ARLENE F. HOFFMAN DPM, PHD

Podiatrist

2100 WEBSTER ST, STE 202
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3535

DR. ANNE E FUNG MD

Ophthalmology