MICHAEL TAN RD
NPI 1639619703
Dietitian, Registered in Gainesville, FL

NPI Status: Active since March 08, 2017

Contact Information

1600 SW ARCHER RD
GAINESVILLE, FL
ZIP 32610
Phone: (352) 265-0111

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Dietitian, Registered

About MICHAEL TAN

This page provides the complete NPI Profile along with additional information for Michael Tan, a provider established in Gainesville, Florida with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1639619703 assigned on March 2017. The practitioner's primary taxonomy code is 133V00000X with license number ND8457 (FL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1639619703
Provider Name: MICHAEL TAN RD
Gender: Male
Entity Type: Individual
Location Address: 1600 SW ARCHER RD GAINESVILLE, FL 32610
Location Phone: (352) 265-0111
Mailing Address: PO BOX 100296 GAINESVILLE, FL 32610
Mailing Phone: (352) 627-9350
Mailing Fax
Is Sole Proprietor?: No
Enumeration Date: 03-08-2017
Last Update Date: 12-05-2025
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Location Map

Secondary Locations

Lahey Hospital and Medical Ctr 41 Mall Road
Burlington, MA 01805
(781) 744-8944

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: Dietitian, Registered
Taxonomy Code: 133V00000X
Type: Dietary & Nutritional Service Providers
License No.: ND8457
License State: FL
Taxonomy Description: A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	133V00000X	Dietary & Nutritional Service Providers	Dietitian, Registered	4252 (MA)

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 1639619703, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 3 → 6 6 → 12 → 3 9 → 18 → 9 0 → 0