DR. MARGARET ELIZABETH WHEELOCK MD
NPI 1679964241
Plastic Surgery in San Francisco, CA

NPI Status: Active since February 18, 2015

Contact Information

45 CASTRO ST STE 121
SAN FRANCISCO, CA
ZIP 94114
Phone: (415) 565-6136

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

Individual
Female
Plastic Surgery

About MARGARET WHEELOCK

This page provides the complete NPI Profile along with additional information for Margaret Wheelock, a provider established in San Francisco, California with a medical specialization in Plastic Surgery. The healthcare provider is registered in the NPI registry with number 1679964241 assigned on February 2015. The practitioner's primary taxonomy code is 208200000X with license number 134661 (CA). The provider is registered as an individual and her NPI record was last updated 11 years ago.

NPI: 1679964241
Provider Name: DR. MARGARET ELIZABETH WHEELOCK MD
Gender: Female
Entity Type: Individual
Location Address: 45 CASTRO ST STE 121 SAN FRANCISCO, CA 94114
Location Phone: (415) 565-6136
Mailing Address: 45 CASTRO ST STE 121 SAN FRANCISCO, CA 94114
Mailing Phone: (415) 565-6136
Is Sole Proprietor?: Yes
Enumeration Date: 02-18-2015
Last Update Date: 02-18-2015
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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: Plastic Surgery
Taxonomy Code: 208200000X
Type: Allopathic & Osteopathic Physicians
License No.: 134661
License State: CA
Taxonomy Description: A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.

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 1679964241, 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 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 8

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 7 → 14 → 5 9 → 18 → 9 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 1 + 8 + 6 + 8 + 2 + 8 + 24 = 79

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

The next multiple of ten after 79 is 80. The difference is the calculated check digit.

80 - 79 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1679964241.