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

John Peter Mars, MD

Individual provider Preventive Medicine/Occupational Environmental Medicine Physician · NPI 1316077506

John Peter Mars, MD is a Preventive Medicine/Occupational Environmental Medicine Physician in Longmont, Colorado. Licensed in Colorado. Registered with an NPI since 2007.

Licensed in
CO
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

205 S Main St Ste C
Longmont, CO 80501-1716
Phone: (303) 702-1612
Fax: (303) 774-7899
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence 36685 (CO)

Record details

NPI number1316077506
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 6, 2007
Last updated in NPPESSeptember 28, 2018
Mailing address205 S Main St, Suite C, Longmont, CO 80501-1716

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