MISS SHEAFFER LAPHAM
NPI 1699839027
Substance Abuse Rehabilitation Facility - Substance Abuse Treatment, Children in San Francisco, CA

NPI Status: Active since December 20, 2006

Contact Information

214 HAIGHT ST
SAN FRANCISCO, CA
ZIP 94102
Phone: (415) 554-1480
Fax: (415) 241-5599

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

Individual
Female
Substance Abuse Rehabilitation Facility
Substance Abuse Treatment, Children

About SHEAFFER LAPHAM

This page provides the complete NPI Profile along with additional information for Sheaffer Lapham, a provider established in San Francisco, California with a medical specialization in Substance Abuse Rehabilitation Facility, focusing in substance abuse treatment, children . The healthcare provider is registered in the NPI registry with number 1699839027 assigned on December 2006. The practitioner's primary taxonomy code is 3245S0500X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1699839027
Provider Name: MISS SHEAFFER LAPHAM
Gender: Female
Entity Type: Individual
Location Address: 214 HAIGHT ST SAN FRANCISCO, CA 94102
Location Phone: (415) 554-1480
Location Fax: (415) 241-5599
Mailing Address: 2216 ASHBY AVE APT. A BERKELEY, CA 94705
Mailing Phone: (415) 740-5872
Mailing Fax: (415) 241-5599
Is Sole Proprietor?: Yes
Enumeration Date: 12-20-2006
Last Update Date: 09-11-2025
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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: Substance Abuse Rehabilitation Facility Substance Abuse Treatment, Children
Taxonomy Code: 3245S0500X
Type: Residential Treatment Facilities
Taxonomy Description: A facility or distinct part of a facility for children that provides a 24 hr therapeutically planned living and rehabilitative intervention environment for the treatment of children with disorders in the use of drugs, alcohol, and other substances. Medical and supportive counseling services and education services are included.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	324500000X	Residential Treatment Facilities	Substance Abuse Rehabilitation Facility

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 1699839027, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 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 9 → 18 → 9 8 → 16 → 7 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 8 + 9 + 1 + 6 + 3 + 1 + 8 + 0 + 4 + 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 1699839027.