DR. LYGIA STEWART M.D.
NPI 1609954387
Surgery in San Francisco, CA

NPI Status: Active since November 01, 2006

Contact Information

4150 CLEMENT ST
SURGERY (112)
SAN FRANCISCO, CA
ZIP 94121
Phone: (415) 221-4810
Fax: (415) 750-2181

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  • Individual
  • Female
  • Surgery

About LYGIA STEWART

This page provides the complete NPI Profile along with additional information for Lygia Stewart, a provider established in San Francisco, California with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1609954387 assigned on November 2006. The practitioner's primary taxonomy code is 208600000X with license number G52246 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1609954387
Provider Name
DR. LYGIA STEWART M.D.
Gender
Female
Entity Type
Individual
Location Address
4150 CLEMENT ST SURGERY (112) SAN FRANCISCO, CA 94121
Location Phone
(415) 221-4810
Location Fax
(415) 750-2181
Mailing Address
4150 CLEMENT STREET SURGERY (112) SAN FRANCISCO, CA 94121
Mailing Phone
(415) 221-4810
Mailing Fax
(415) 750-2181
Is Sole Proprietor?
No
Enumeration Date
11-01-2006
Last Update Date
07-08-2007
Code Navigator

A surgeon like Lygia Stewart treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

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

Surgery

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
G52246
License State
CA
Taxonomy Description
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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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 1609954387, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
0
Doubled → 0
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
7
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 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 0 + 9 + 1 + 8 + 5 + 8 + 3 + 1 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1609954387.

Other Providers at the Same Location


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

Nurse Practitioner (Family)
4150 CLEMENT ST, 111C
SAN FRANCISCO, CA 94121
Internal Medicine (Geriatric Medicine)
4150 CLEMENT ST, VA MEDICAL CENTER 181G
SAN FRANCISCO, CA 94121
Internal Medicine (Gastroenterology)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Dentist (General Practice)
4150 CLEMENT ST, DEPT. 160
SAN FRANCISCO, CA 94121
Internal Medicine (Geriatric Medicine)
4150 CLEMENT ST, 181G
SAN FRANCISCO, CA 94121
Dermatology
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Dermatology
4150 CLEMENT ST, DERMATOLOGY DEPT (190)
SAN FRANCISCO, CA 94121
Nurse Practitioner
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Registered Nurse (Ambulatory Care)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Nurse Practitioner (Adult Health)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Registered Nurse (Ambulatory Care)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Nurse Practitioner (Family)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Hospice, Inpatient
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Internal Medicine (Geriatric Medicine)
4150 CLEMENT ST, SFVAMC BOX 181-G
SAN FRANCISCO, CA 94121
Internal Medicine
4150 CLEMENT ST, BLDG 1, RM306, BOX181G
SAN FRANCISCO, CA 94121
Nurse Practitioner (Adult Health)
4150 CLEMENT ST, WOMEN'S CLINIC 11C2
SAN FRANCISCO, CA 94121
Nurse Practitioner (Psychiatric/Mental Health)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Nurse Practitioner (Adult Health)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Nurse Practitioner (Primary Care)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121
Nurse Practitioner (Gerontology)
4150 CLEMENT ST
SAN FRANCISCO, CA 94121

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1609954387, enumerated as an "individual" on November 01, 2006.

The provider is located at 4150 CLEMENT ST SURGERY (112) SAN FRANCISCO, CA 94121 and the phone number is (415) 221-4810.

Surgery with taxonomy code 208600000X.