DR. DARREL F. HILLMAN D.M.D.
NPI 1275653354
Dentist - General Practice in San Juan, PR

NPI Status: Active since March 30, 2007

Contact Information

576 CALLE CESAR GONZALEZ
DORAL BANK CENTER SUITE 407
SAN JUAN, PR
ZIP 00918
Phone: (787) 751-6324
Fax: (787) 772-9436

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  • Individual
  • Male
  • Dentist
  • General Practice

About DARREL HILLMAN

This page provides the complete NPI Profile along with additional information for Darrel Hillman, a provider established in San Juan, Puerto Rico with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1275653354 assigned on March 2007. The practitioner's primary taxonomy code is 1223G0001X with license number 1528 (PR). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1275653354
Provider Name
DR. DARREL F. HILLMAN D.M.D.
Gender
Male
Entity Type
Individual
Location Address
576 CALLE CESAR GONZALEZ DORAL BANK CENTER SUITE 407 SAN JUAN, PR 00918
Location Phone
(787) 751-6324
Location Fax
(787) 772-9436
Mailing Address
PO BOX 360458 SAN JUAN, PR 00936
Mailing Phone
(787) 751-6324
Mailing Fax
(787) 772-9436
Is Sole Proprietor?
No
Enumeration Date
03-30-2007
Last Update Date
06-06-2025
Code Navigator

A dentist like Darrel Hillman 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 General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License No.
1528
License State
PR
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

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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 1275653354, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
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 7 → 14 → 5 6 → 12 → 3 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 4 + 5 + 1 + 2 + 5 + 6 + 3 + 1 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1275653354.

Other Providers at the Same Location


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

Dentist (Pediatric Dentistry)
576 CALLE CESAR GONZALEZ, STE 307
SAN JUAN, PR 00918
Dentist (Oral and Maxillofacial Surgery)
576 CALLE CESAR GONZALEZ, SUITE 306
SAN JUAN, PR 00918
Dentist (General Practice)
576 CALLE CESAR GONZALEZ
SAN JUAN, PR 00918
Obstetrics & Gynecology
576 CALLE CESAR GONZALEZ, SUITE 401
SAN JUAN, PR 00918
Chiropractor
576 CALLE CESAR GONZALEZ, STE 501
SAN JUAN, PR 00918
Obstetrics & Gynecology
576 CALLE CESAR GONZALEZ, DORAL BANK CENTER SUITE 204
SAN JUAN, PR 00918
Pediatrics
576 CALLE CESAR GONZALEZ, SUITE 404
SAN JUAN, PR 00918
Pediatrics
576 CALLE CESAR GONZALEZ, SUITE 404
SAN JUAN, PR 00918
Pediatrics
576 CALLE CESAR GONZALEZ, SUITE 202
SAN JUAN, PR 00918
Pediatrics
576 CALLE CESAR GONZALEZ, OFICINA 404
SAN JUAN, PR 00918
Clinical Medical Laboratory
576 CALLE CESAR GONZALEZ, OFIC. 101C
SAN JUAN, PR 00918
Obstetrics & Gynecology (Reproductive Endocrinology)
576 CALLE CESAR GONZALEZ, SUITE 505
SAN JUAN, PR 00918
Orthopaedic Surgery (Foot and Ankle Surgery)
576 CALLE CESAR GONZALEZ, SUITE 508
SAN JUAN, PR 00918
Clinic/Center (Physical Therapy)
576 CALLE CESAR GONZALEZ, 502 STE
SAN JUAN, PR 00918
Clinic/Center (Dental)
576 CALLE CESAR GONZALEZ, SUITE 301
SAN JUAN, PR 00918
Specialist
576 CALLE CESAR GONZALEZ, 408 DORAL BANK SUITE
SAN JUAN, PR 00918
Psychologist
576 CALLE CESAR GONZALEZ, DORAL BANK CENTER - SUITE 303
SAN JUAN, PR 00918
Dentist (Pediatric Dentistry)
576 CALLE CESAR GONZALEZ, DORAL BANK CENTER SUITE 407
SAN JUAN, PR 00918
Dentist (General Practice)
576 CALLE CESAR GONZALEZ, SUITE 301, DORAL BANK CENTER
SAN JUAN, PR 00918
Internal Medicine (Rheumatology)
576 CALLE CESAR GONZALEZ, SUITE 101 A
SAN JUAN, PR 00918

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275653354, enumerated as an "individual" on March 30, 2007.

The provider is located at 576 CALLE CESAR GONZALEZ DORAL BANK CENTER SUITE 407 SAN JUAN, PR 00918 and the phone number is (787) 751-6324.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.