DR. JOHN GUATELLI M.D.
NPI 1245345693
Specialist in La Jolla, CA

NPI Status: Active since August 19, 2006

Contact Information

9500 GILMAN DR
LA JOLLA, CA
ZIP 92093
Phone: (858) 552-8585
Fax: (858) 552-7445

Get Directions Write a Review

  • Individual
  • Male
  • Specialist

About JOHN GUATELLI

This page provides the complete NPI Profile along with additional information for John Guatelli, a provider established in La Jolla, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1245345693 assigned on August 2006. The practitioner's primary taxonomy code is 174400000X with license number G58874 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1245345693
Provider Name
DR. JOHN GUATELLI M.D.
Gender
Male
Entity Type
Individual
Location Address
9500 GILMAN DR LA JOLLA, CA 92093
Location Phone
(858) 552-8585
Location Fax
(858) 552-7445
Mailing Address
9500 GILMAN DRIVE LA JOLLA, CA 92093
Mailing Phone
(858) 552-8585
Mailing Fax
(858) 552-7445
Is Sole Proprietor?
No
Enumeration Date
08-19-2006
Last Update Date
07-08-2007
Code Navigator

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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
G58874
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Reviews for DR. JOHN GUATELLI M.D.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1245345693, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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
2
Unchanged
Pos 3
4
Doubled → 8
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 4 → 8 3 → 6 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 8 + 5 + 6 + 4 + 1 + 0 + 6 + 1 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1245345693.

Other Providers at the Same Location


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

Medical Genetics (Clinical Cytogenetics)
9500 GILMAN DR, UCSD DIVISION OF MEDICAL GENETICS-0639
LA JOLLA, CA 92093
Psychologist
9500 GILMAN DR
LA JOLLA, CA 92093
Internal Medicine (Hematology & Oncology)
9500 GILMAN DR, HEMATOLOGY-ONCOLOGY (9111E)
LA JOLLA, CA 92093
Radiology (Diagnostic Radiology)
9500 GILMAN DR, MAIL CODE 9114
LA JOLLA, CA 92093
Psychologist (Clinical)
9500 GILMAN DR, MAIL CODE 0603-G
LA JOLLA, CA 92093
Pediatrics
9500 GILMAN DR, MAIL CODE 0927
LA JOLLA, CA 92093
Internal Medicine (Rheumatology)
9500 GILMAN DR
LA JOLLA, CA 92093
Psychiatry & Neurology (Neurology)
9500 GILMAN DR, MC 0624
LA JOLLA, CA 92093
Psychiatry & Neurology (Neurology)
9500 GILMAN DR, #0949
LA JOLLA, CA 92093
General Practice
9500 GILMAN DR, MC0736
LA JOLLA, CA 92093
Obstetrics & Gynecology
9500 GILMAN DR, UCSD, BSB 5046B, 0633
LA JOLLA, CA 92093
Psychiatry & Neurology (Psychiatry)
9500 GILMAN DR, 0603R
LA JOLLA, CA 92093
Student in an Organized Health Care Education/Training Program
9500 GILMAN DR, RESIDENCY TRAINING OFFICE 9116A
LA JOLLA, CA 92093
Specialist
9500 GILMAN DR
LA JOLLA, CA 92093
Student in an Organized Health Care Education/Training Program
9500 GILMAN DR, UCSD MAIL CODE 0603R
LA JOLLA, CA 92093
Pharmacist (Pharmacotherapy)
9500 GILMAN DR, MC 0719
LA JOLLA, CA 92093
Pharmacist
9500 GILMAN DR
LA JOLLA, CA 92093
Nurse Practitioner (Women's Health)
9500 GILMAN DR, 0039
LA JOLLA, CA 92093
Nurse Practitioner (Adult Health)
9500 GILMAN DR
LA JOLLA, CA 92093
Obstetrics & Gynecology
9500 GILMAN DR, #0633 UCSD DEPT REPRO MED
LA JOLLA, CA 92093

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1245345693, enumerated as an "individual" on August 19, 2006.

The provider is located at 9500 GILMAN DR LA JOLLA, CA 92093 and the phone number is (858) 552-8585.

Specialist with taxonomy code 174400000X.