DR. JOAN DIAZ-ROMAN DC
NPI 1548759145
Chiropractor in Lakeland, FL

NPI Status: Active since May 09, 2018

Contact Information

4406 S FLORIDA AVE STE 22C
LAKELAND, FL
ZIP 33813
Phone: (863) 600-4976
Fax: (863) 600-5277

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  • Individual
  • Male
  • Chiropractor

About JOAN DIAZ-ROMAN

This page provides the complete NPI Profile along with additional information for Joan Diaz-roman, a provider established in Lakeland, Florida with a medical specialization in Chiropractor. The healthcare provider is registered in the NPI registry with number 1548759145 assigned on May 2018. The practitioner's primary taxonomy code is 111N00000X with license number CH13778 (FL). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI
1548759145
Provider Name
DR. JOAN DIAZ-ROMAN DC
Gender
Male
Entity Type
Individual
Location Address
4406 S FLORIDA AVE STE 22C LAKELAND, FL 33813
Location Phone
(863) 600-4976
Location Fax
(863) 600-5277
Mailing Address
5619 AUTUMN RIDGE RD APT 107 LAKELAND, FL 33805
Mailing Phone
(863) 600-4976
Is Sole Proprietor?
No
Enumeration Date
05-09-2018
Last Update Date
02-24-2026
Code Navigator

A chiropractor like Joan Diaz-roman helps patients with problems of the neuromusculoskeletal system, which includes nerves, bones, muscles, ligaments, and tendons. Chiropractors use spinal adjustments and manipulation, as well as other clinical interventions, to manage health issues such as back and neck pain. Some chiropractors apply procedures like massage therapy, rehabilitative exercise, ultrasound and spinal adjustments and manipulation. A chiropractor focuses on the patients overall health and might refer patients to other healthcare professionals if necessary.

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

Chiropractor

Taxonomy Code
111N00000X
Type
Chiropractic Providers
License No.
CH13778
License State
FL
Taxonomy Description
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

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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 1548759145, 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 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
5
Unchanged
Pos 3
4
Doubled → 8
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
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 4 → 8 7 → 14 → 5 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 1 + 4 + 5 + 1 + 8 + 1 + 8 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1548759145.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Chiropractor
4406 S FLORIDA AVE STE 22C
LAKELAND, FL 33813

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1548759145, enumerated as an "individual" on May 09, 2018.

The provider is located at 4406 S FLORIDA AVE STE 22C LAKELAND, FL 33813 and the phone number is (863) 600-4976.

Chiropractor with taxonomy code 111N00000X.