MARISSA ADELA SANCHEZ PSM, RDN
NPI 1457237448
Dietitian, Registered in Tucson, AZ

NPI Status: Active since August 14, 2025

Contact Information

5301 E GRANT RD
TUCSON, AZ
ZIP 85712
Phone: (520) 327-5461

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  • Individual
  • Female
  • Dietitian, Registered

About MARISSA SANCHEZ

This page provides the complete NPI Profile along with additional information for Marissa Sanchez, a provider established in Tucson, Arizona with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1457237448 assigned on August 2025. The practitioner's primary taxonomy code is 133V00000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1457237448
Provider Name
MARISSA ADELA SANCHEZ PSM, RDN
Gender
Female
Entity Type
Individual
Location Address
5301 E GRANT RD TUCSON, AZ 85712
Location Phone
(520) 327-5461
Mailing Address
1451 E GRANT RD TUCSON, AZ 85719
Mailing Phone
(520) 979-0192
Is Sole Proprietor?
No
Enumeration Date
08-14-2025
Last Update Date
08-14-2025
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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
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.

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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 1457237448, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 0 + 7 + 4 + 3 + 1 + 4 + 4 + 8 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1457237448.

Other Providers at the Same Location


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

Psychiatric Unit
5301 E GRANT RD
TUCSON, AZ 85712
Advanced Practice Midwife
5301 E GRANT RD, OBSTETRIX MEDICAL GROUP OF AZ, P.C.
TUCSON, AZ 85712
Obstetrics & Gynecology (Maternal & Fetal Medicine)
5301 E GRANT RD, 5301 E GRANT RD
TUCSON, AZ 85712
Specialist
5301 E GRANT RD
TUCSON, AZ 85712
Genetic Counselor, MS
5301 E GRANT RD, OBSTETRIX MEDICAL GROUP OF ARIZONA
TUCSON, AZ 85712
Pathology (Anatomic Pathology & Clinical Pathology)
5301 E GRANT RD
TUCSON, AZ 85712
Pathology (Anatomic Pathology & Clinical Pathology)
5301 E GRANT RD
TUCSON, AZ 85712
Pathology (Anatomic Pathology & Clinical Pathology)
5301 E GRANT RD
TUCSON, AZ 85712
Nurse Practitioner (Neonatal, Critical Care)
5301 E GRANT RD
TUCSON, AZ 85712
Pharmacist
5301 E GRANT RD
TUCSON, AZ 85712
Surgery (Vascular Surgery)
5301 E GRANT RD
TUCSON, AZ 85712
Anesthesiology
5301 E GRANT RD
TUCSON, AZ 85712
Physical Therapist (Pediatrics)
5301 E GRANT RD
TUCSON, AZ 85712
Occupational Therapist (Pediatrics)
5301 E GRANT RD
TUCSON, AZ 85712
Occupational Therapy Assistant
5301 E GRANT RD
TUCSON, AZ 85712
Speech-Language Pathologist
5301 E GRANT RD
TUCSON, AZ 85712
Nurse Practitioner (Adult Health)
5301 E GRANT RD
TUCSON, AZ 85712
Anesthesiology
5301 E GRANT RD, THMEP
TUCSON, AZ 85712
Nurse Practitioner (Family)
5301 E GRANT RD, FAST TRACK BLDG
TUCSON, AZ 85712
Obstetrics & Gynecology
5301 E GRANT RD
TUCSON, AZ 85712

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1457237448, enumerated as an "individual" on August 14, 2025.

The provider is located at 5301 E GRANT RD TUCSON, AZ 85712 and the phone number is (520) 327-5461.

Dietitian, Registered with taxonomy code 133V00000X.