WILLIAM D HOOKER PH.D.
NPI 1720199672
Clinical Neuropsychologist in San Francisco, CA

NPI Status: Active since August 31, 2006

Contact Information

350 PARNASSUS AVE
STE. 309
SAN FRANCISCO, CA
ZIP 94117
Phone: (415) 665-1875
Fax: (415) 665-1881

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  • Individual
  • Male
  • Clinical Neuropsychologist
  • PECOS Enrolled

About WILLIAM HOOKER

This page provides the complete NPI Profile along with additional information for William Hooker, a provider established in San Francisco, California with a medical specialization in Clinical Neuropsychologist. The healthcare provider is registered in the NPI registry with number 1720199672 assigned on August 2006. The practitioner's primary taxonomy code is 103G00000X with license number PSY9092 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1720199672
Provider Name
WILLIAM D HOOKER PH.D.
Gender
Male
Entity Type
Individual
Location Address
350 PARNASSUS AVE STE. 309 SAN FRANCISCO, CA 94117
Location Phone
(415) 665-1875
Location Fax
(415) 665-1881
Mailing Address
350 PARNASSUS AVE STE. 309 SAN FRANCISCO, CA 94117
Mailing Phone
(415) 665-1875
Mailing Fax
(415) 665-1881
Is Sole Proprietor?
Yes
Enumeration Date
08-31-2006
Last Update Date
07-08-2007
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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

Clinical Neuropsychologist

Taxonomy Code
103G00000X
Type
Behavioral Health & Social Service Providers
License No.
PSY9092
License State
CA
Taxonomy Description
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
OOPL90920MEDICARE ID-TYPE UNSPECIFIED (04)CA 
R26697MEDICARE UPIN (02)CA 

Medicare Participation & PECOS Enrollment Status

William Hooker is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Durable Medical Equipment (DME).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: No

Reviews for WILLIAM D HOOKER PH.D.

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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 1720199672, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
2
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 2 → 4 1 → 2 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 9 + 1 + 8 + 6 + 1 + 4 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1720199672.

Other Providers at the Same Location


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

Internal Medicine (Gastroenterology)
350 PARNASSUS AVE, SUITE 410
SAN FRANCISCO, CA 94117
Obstetrics & Gynecology
350 PARNASSUS AVE
SAN FRANCISCO, CA 94117
Internal Medicine (Gastroenterology)
350 PARNASSUS AVE, SUITE 900
SAN FRANCISCO, CA 94117
Internal Medicine
350 PARNASSUS AVE, SUITE 710
SAN FRANCISCO, CA 94117
Psychiatry & Neurology (Neurology)
350 PARNASSUS AVE, SUITE 706
SAN FRANCISCO, CA 94117
Internal Medicine (Endocrinology, Diabetes & Metabolism)
350 PARNASSUS AVE, SUITE 707
SAN FRANCISCO, CA 94117
Internal Medicine (Endocrinology, Diabetes & Metabolism)
350 PARNASSUS AVE, SUITE 707
SAN FRANCISCO, CA 94117
Clinical Neuropsychologist
350 PARNASSUS AVE, SUITE 706
SAN FRANCISCO, CA 94117
Psychiatry & Neurology (Psychiatry)
350 PARNASSUS AVE, SUITE 909
SAN FRANCISCO, CA 94117
Psychiatry & Neurology (Psychiatry)
350 PARNASSUS AVE, SUITE 909
SAN FRANCISCO, CA 94117
Psychiatry & Neurology (Psychiatry)
350 PARNASSUS AVE, SUITE 309
SAN FRANCISCO, CA 94117
Dentist (General Practice)
350 PARNASSUS AVE, SUITE #403
SAN FRANCISCO, CA 94117
Psychiatry & Neurology (Psychiatry)
350 PARNASSUS AVE, SUITE 303
SAN FRANCISCO, CA 94117
Psychiatry & Neurology (Psychiatry)
350 PARNASSUS AVE, SUITE 909
SAN FRANCISCO, CA 94117
Psychologist
350 PARNASSUS AVE, SUITE 309
SAN FRANCISCO, CA 94117
Nurse Practitioner
350 PARNASSUS AVE, SUITE 410
SAN FRANCISCO, CA 94117
Specialist
350 PARNASSUS AVE, SUITE 707
SAN FRANCISCO, CA 94117
Genetic Counselor, MS
350 PARNASSUS AVE, SUITE 810
SAN FRANCISCO, CA 94117
Clinical Nurse Specialist (Adult Health)
350 PARNASSUS AVE, SUITE 404
SAN FRANCISCO, CA 94117
Genetic Counselor, MS
350 PARNASSUS AVE, STE 706
SAN FRANCISCO, CA 94117

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720199672, enumerated as an "individual" on August 31, 2006.

The provider is located at 350 PARNASSUS AVE STE. 309 SAN FRANCISCO, CA 94117 and the phone number is (415) 665-1875.

Clinical Neuropsychologist with taxonomy code 103G00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.