THE FERNANDEZ MARTINEZ MANAGEMENT, LLC
NPI 1629935879
Internal Medicine - Geriatric Medicine in Lady Lake, FL

NPI Status: Active since January 08, 2026

Contact Information

741 HIGHWAY 466
LADY LAKE, FL
ZIP 32159
Phone: (352) 750-6650
Fax: (352) 750-6653

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  • Organization
  • Internal Medicine
  • Geriatric Medicine

About THE FERNANDEZ MARTINEZ MANAGEMENT, LLC

This page provides the complete NPI Profile along with additional information for The Fernandez Martinez Management, Llc, an internist established in Lady Lake, Florida operating as a Internal Medicine, focusing in geriatric medicine . The healthcare provider is registered in the NPI registry with number 1629935879 assigned on January 2026. The practitioner's primary taxonomy code is 207RG0300X. The provider is registered as an organization and their NPI record was last updated January 2026. The Fernandez Martinez Management, Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mrs. Ana Del Camen Fernandez Liz (Office Manager)

NPI
1629935879
Provider Name
THE FERNANDEZ MARTINEZ MANAGEMENT, LLC
Entity Type
Organization
Location Address
741 HIGHWAY 466 LADY LAKE, FL 32159
Location Phone
(352) 750-6650
Location Fax
(352) 750-6653
Mailing Address
741 HIGHWAY 466 LADY LAKE, FL 32159
Mailing Phone
(352) 750-6650
Mailing Fax
(352) 750-6653
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-08-2026
Last Update Date
01-08-2026
Code Navigator

An internist like The Fernandez Martinez Management, Llc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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

Internal Medicine Geriatric Medicine

Taxonomy Code
207RG0300X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MRS. ANA DEL CAMEN FERNANDEZ LIZ

Authorized Official Title
OFFICE MANAGER
Authorized Official Phone
(352) 750-6650

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
1588635551MEDICAID (05)FL 

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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 1629935879, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
6
Unchanged
Pos 3
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
9
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 9 → 18 → 9 5 → 10 → 1 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 1 + 8 + 3 + 1 + 0 + 8 + 1 + 4 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1629935879.

Other Providers at the Same Location


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

Obstetrics & Gynecology
741 HIGHWAY 466
LADY LAKE, FL 32159

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629935879, enumerated as an "organization" on January 08, 2026.

The provider is located at 741 HIGHWAY 466 LADY LAKE, FL 32159 and the phone number is (352) 750-6650.

Internal Medicine with taxonomy code 207RG0300X and a focus in Geriatric Medicine.

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