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

Mr. Marcus D Major Sr., RRT, RCP

Individual provider Home Health Certified Respiratory Therapist · NPI 1790301711

Mr. Marcus D Major Sr., RRT, RCP is a Home Health Certified Respiratory Therapist in Oklahoma City, Oklahoma. Licensed in Oklahoma. Registered with an NPI since 2020.

Licensed in
OK
In the registry since
2020
What do these letters mean?
RRT — Registered Respiratory Therapist
Treats breathing disorders and manages ventilators.

See every abbreviation used in this directory →

Practice location Address checks out

415 W Wilshire Blvd Ste A
Oklahoma City, OK 73116-7702
Phone: (405) 840-5272
Fax: (405) 840-5274
Show map & directions

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

Specialties & licences

Home Health Certified Respiratory Therapist (primary) Taxonomy 2278H0200X · Licence 3537 (OK)

Record details

NPI number1790301711
Entity typeIndividual (Type 1)
GenderMale
Credentials RRT , RCP
Sole proprietorNo
NPI enumeratedJune 25, 2020
Last updated in NPPESJune 25, 2020
Certification dateJune 25, 2020