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

Dr. Javier Fernando Dieguez, MD

Individual provider Pulmonary Disease Physician · NPI 1497061527

Dr. Javier Fernando Dieguez, MD is a Pulmonary Disease in Amarillo, Texas. Qualified in 2007, 19 years ago. Practices with Amarillo Lung and Critical Care PLLC, a 3-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
19
Licensed in
TX
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

6700 W 9th Ave
Amarillo, TX 79106-1701
Phone: (806) 358-0200
Fax: (806) 356-5590
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 Q5175 (TX)

Record details

NPI number1497061527
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 26, 2010
Last updated in NPPESMay 15, 2019

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Amarillo Lung And Critical Care Pllc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Amarillo