Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

PROTO360, LLC
NPI 1043136526
Preventive Medicine - Obesity Medicine in Annapolis, MD

Active since June 29, 2026
419 4TH ST, ANNAPOLIS, MD 21403(410) 823-8243 Get Directions Write a Review

NPPES record added: June 29, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Proto360, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PROTO360, LLC (NPI 1043136526) is a healthcare organization registered as an obesity medicine in Annapolis, Maryland and active in the NPI registry since June 2026. The organization lists Katrina Mattingly, Founding Partner, as its authorized official.

NPPES Registry Identity

NPI1043136526
Entity TypeOrganization
Primary Taxonomy2083B0002X
Legal Business NamePROTO360, LLC
Location Address419 4TH STAnnapolis, MD 21403-2585
Mailing Address419 4th StAnnapolis, MD 21403-2585
Organization SubpartNo
Authorized OfficialKatrina MattinglyFounding Partner · (352) 339-3111
Enumeration DateJune 29, 2026
NPPES CertifiedJune 24, 2026
NPI 1043136526 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPreventive Medicine · Obesity MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083B0002X
Definition

A physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.

Also ListedClinic/Center · Urgent CareTaxonomy 261QU0200X
419 4TH ST, Annapolis, MD 21403

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Preventive Medicine (Obesity Medicine)
419 4TH ST
ANNAPOLIS, MD 21403

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Proto360, LLC's NPI number?

The NPI number for Proto360, LLC is 1043136526. It was assigned to this organization in the NPPES registry on June 29, 2026.

Where is Proto360, LLC located?

Proto360, LLC is located at 419 4th St, Annapolis, MD 21403. The listed phone number is (410) 823-8243.

What is Proto360, LLC's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Obesity Medicine, with taxonomy code 2083B0002X.

When was this NPI record last updated?

The NPPES record for Proto360, LLC was last updated on June 29, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.