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

Marshall Scott Irby, MD

Individual provider Pulmonary Disease Physician · NPI 1679560411

Marshall Scott Irby, MD is an Internal Medicine in Monroe, Louisiana. Qualified in 1982, 44 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
44
Licensed in
LA
In the registry since
2005
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

2810 Armand St
Monroe, LA 71201-3752
Phone: (318) 322-5864
Fax: (318) 322-5992
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 08027R (LA)

Record details

NPI number1679560411
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 5, 2005
Last updated in NPPESJanuary 16, 2008
Mailing address2810 Armand St, Monroe, LA 71201-3752

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPULMONARY DISEASE
Medical schoolOTHER
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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