DR. FERNANDO E FERRER D.M.D.
NPI 1700885365
Dentist - Prosthodontics in San Juan, PR

NPI Status: Active since July 17, 2005

Contact Information

420 AVE PONCE DE LEON
MIDTOWN 802
SAN JUAN, PR
ZIP 00918
Phone: (787) 764-7965

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  • Individual
  • Male
  • Dentist
  • Prosthodontics

About FERNANDO FERRER

This page provides the complete NPI Profile along with additional information for Fernando Ferrer, a provider established in San Juan, Puerto Rico with a medical specialization in Dentist, focusing in prosthodontics . The healthcare provider is registered in the NPI registry with number 1700885365 assigned on July 2005. The practitioner's primary taxonomy code is 1223P0700X with license number 555 (PR). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1700885365
Provider Name
DR. FERNANDO E FERRER D.M.D.
Gender
Male
Entity Type
Individual
Location Address
420 AVE PONCE DE LEON MIDTOWN 802 SAN JUAN, PR 00918
Location Phone
(787) 764-7965
Mailing Address
420 AVE PONCE DE LEON MIDTOWN 802 SAN JUAN, PR 00918
Mailing Phone
(787) 764-7965
Is Sole Proprietor?
Yes
Enumeration Date
07-17-2005
Last Update Date
07-08-2007
Code Navigator

A dentist like Fernando Ferrer is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist Prosthodontics

Taxonomy Code
1223P0700X
Type
Dental Providers
License No.
555
License State
PR
Taxonomy Description
That branch of dentistry pertaining to the restoration and maintenance of oral functions, comfort, appearance and health of the patient by the restoration of natural teeth and/or the replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes.

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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 1700885365, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
0
Doubled → 0
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
5
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 0 → 0 8 → 16 → 7 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 0 + 0 + 1 + 6 + 8 + 1 + 0 + 3 + 1 + 2 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1700885365.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Contractor
420 AVE PONCE DE LEON, MIDTOWN BUILDING, SUITE 604
SAN JUAN, PR 00918
Psychologist (Clinical)
420 AVE PONCE DE LEON, MIDTOWN BUILDING SUITE 206
SAN JUAN, PR 00918
Psychiatry & Neurology (Child & Adolescent Psychiatry)
420 AVE PONCE DE LEON, MIDTOWN, SUITE 509
SAN JUAN, PR 00918
Psychiatry & Neurology (Neurology)
420 AVE PONCE DE LEON, SUITE 103
SAN JUAN, PR 00918
Psychologist (Clinical)
420 AVE PONCE DE LEON, SUITE 412
SAN JUAN, PR 00918
Psychologist (Clinical Child & Adolescent)
420 AVE PONCE DE LEON, MIDTOWN BUILDING SUITE 701
SAN JUAN, PR 00918
Psychiatry & Neurology (Child & Adolescent Psychiatry)
420 AVE PONCE DE LEON, SUITE 603 EDIF MIDTOWN
SAN JUAN, PR 00918

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1700885365, enumerated as an "individual" on July 17, 2005.

The provider is located at 420 AVE PONCE DE LEON MIDTOWN 802 SAN JUAN, PR 00918 and the phone number is (787) 764-7965.

Dentist with taxonomy code 1223P0700X and a focus in Prosthodontics.