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

Penny J Williams, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1588649453

Penny J Williams, MD is a Pulmonary Disease in Phoenix, Arizona. Graduated from Boston University School of Medicine in 1990, 36 years ago. Practices with Yuma Regional Medical Center, a 372-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Arizona, Oregon, South Carolina and Tennessee and 1 more.

Years since qualifying
36
Trained at
Boston University School of Medicine
Licensed in
AZ, OR, SC, TN, WI
In the registry since
2005
Specialties on file
7
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

3330 N 2nd St Ste 300
Phoenix, AZ 85012-2369
Phone: (602) 261-7830
Fax: (602) 261-7835
Show map & directions

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

Additional practice locations (3)

  • 2400 S Avenue A, Yuma, AZ 85364-7127 — (928) 344-2000
  • 800 W Meeting St, Lancaster, SC 29720-2202 — (843) 792-1414
  • 400 N State Of Franklin Rd Rm 2746, Johnson City, TN 37604-6035 — (423) 431-6111

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 66867 (TN)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 26291 (AZ)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 18810 (SC)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 910 (WI)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence MD202003 (OR)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence MD202003 (OR)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 66867 (TN)

Record details

NPI number1588649453
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 13, 2005
Last updated in NPPESJanuary 28, 2025
Certification dateJanuary 28, 2025

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Yuma Regional Medical Center — 372 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Phoenix