Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Proto360, LLC

Organization Obesity Medicine (Preventive Medicine) Physician · NPI 1043136526

Proto360, LLC is an Obesity Medicine (Preventive Medicine) Physician in Annapolis, Maryland. Registered with an NPI since 2026.

In the registry since
2026
Specialties on file
2
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

419 4th St
Annapolis, MD 21403-2585
Phone: (410) 823-8243
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obesity Medicine (Preventive Medicine) Physician (primary) Taxonomy 2083B0002X
Urgent Care Clinic/Center Taxonomy 261QU0200X

Record details

NPI number1043136526
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Katrina Mattingly — Founding Partner · (352) 339-3111
NPI enumeratedJune 29, 2026
Last updated in NPPESJune 29, 2026
Certification dateJune 24, 2026
Mailing address419 4th St, Annapolis, MD 21403-2585

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