DR. LINA MAY HANNIGAN PH.D.
NPI 1063576403
Psychologist - Health Service in San Francisco, CA

NPI Status: Active since December 20, 2006

Contact Information

4141 GEARY BLVD
SUITE 212
SAN FRANCISCO, CA
ZIP 94118
Phone: (415) 833-3327
Fax: (415) 833-4781

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  • Individual
  • Female
  • Psychologist
  • Health Service

About LINA HANNIGAN

This page provides the complete NPI Profile along with additional information for Lina Hannigan, a provider established in San Francisco, California with a medical specialization in Psychologist, focusing in health service . The healthcare provider is registered in the NPI registry with number 1063576403 assigned on December 2006. The practitioner's primary taxonomy code is 103TH0100X with license number PSY20504 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1063576403
Provider Name
DR. LINA MAY HANNIGAN PH.D.
Other Name
DR. LINA M. HANNIGAN PH.D.
Other Name Type
Professional Name (2)
Gender
Female
Entity Type
Individual
Location Address
4141 GEARY BLVD SUITE 212 SAN FRANCISCO, CA 94118
Location Phone
(415) 833-3327
Location Fax
(415) 833-4781
Mailing Address
6 EL CAPITAN CT ALAMEDA, CA 94501
Mailing Phone
(510) 814-6299
Is Sole Proprietor?
No
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

Psychologist Health Service

Taxonomy Code
103TH0100X
Type
Behavioral Health & Social Service Providers
License No.
PSY20504
License State
CA
Taxonomy Description
A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).

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)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

PSY20504 (CA)

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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 1063576403, we treat the final digit (3) 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 3).

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
0
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
0
Doubled → 0
Check
3
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 6 → 12 → 3 5 → 10 → 1 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 2 + 3 + 1 + 0 + 7 + 1 + 2 + 4 + 0 + 24 = 47

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

The next multiple of ten after 47 is 50. The difference is the calculated check digit.

50 - 47 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1063576403.

Other Providers at the Same Location


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

Pharmacist
4141 GEARY BLVD, SUITE #208
SAN FRANCISCO, CA 94118
Social Worker (Clinical)
4141 GEARY BLVD
SAN FRANCISCO, CA 94118
Psychologist (Clinical)
4141 GEARY BLVD, 3RD FLR
SAN FRANCISCO, CA 94118
Physical Therapist
4141 GEARY BLVD
SAN FRANCISCO, CA 94118
Psychologist (Health Service)
4141 GEARY BLVD, SUITE 212
SAN FRANCISCO, CA 94118
Marriage & Family Therapist
4141 GEARY BLVD, 3RD FLOOR
SAN FRANCISCO, CA 94118
Audiologist-Hearing Aid Fitter
4141 GEARY BLVD, 1ST FLOOR
SAN FRANCISCO, CA 94118
Social Worker (Clinical)
4141 GEARY BLVD, 3RD FLOOR
SAN FRANCISCO, CA 94118
Clinical Neuropsychologist
4141 GEARY BLVD, KAISER HOSPITAL
SAN FRANCISCO, CA 94118
Acupuncturist
4141 GEARY BLVD, 212
SAN FRANCISCO, CA 94118
Acupuncturist
4141 GEARY BLVD, SUITE 212
SAN FRANCISCO, CA 94118
Psychologist (Clinical)
4141 GEARY BLVD, THIRD FLOOR
SAN FRANCISCO, CA 94118
Acupuncturist
4141 GEARY BLVD, SUITE 212
SAN FRANCISCO, CA 94118
Acupuncturist
4141 GEARY BLVD
SAN FRANCISCO, CA 94118
Physical Therapist
4141 GEARY BLVD, SUITE 212
SAN FRANCISCO, CA 94118
Social Worker (Clinical)
4141 GEARY BLVD, THIRD FLOOR
SAN FRANCISCO, CA 94118
Psychologist
4141 GEARY BLVD, 3RD FLOOR
SAN FRANCISCO, CA 94118
Social Worker (Clinical)
4141 GEARY BLVD, SUITE 212
SAN FRANCISCO, CA 94118
Marriage & Family Therapist
4141 GEARY BLVD, 3RD FLOOR
SAN FRANCISCO, CA 94118
Social Worker (Clinical)
4141 GEARY BLVD
SAN FRANCISCO, CA 94118

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1063576403, enumerated as an "individual" on December 20, 2006.

The provider is located at 4141 GEARY BLVD SUITE 212 SAN FRANCISCO, CA 94118 and the phone number is (415) 833-3327.

Psychologist with taxonomy code 103TH0100X and a focus in Health Service.