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

Matthew Benjamin Lancaster, MD

Individual provider Internal Medicine Physician · NPI 1255072138

Matthew Benjamin Lancaster, MD practises Internal Medicine in Phoenix, Arizona. Graduated from University of South Carolina School of Medicine in 2022, 4 years ago. Practices with Saint Alphonsus Regional Medical Center Inc, a 673-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
4
Trained at
University of South Carolina School of Medicine
Licensed in
ID
In the registry since
2022
Specialties on file
2
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

1300 N 12th St Ste 508
Phoenix, AZ 85006-2849
Phone: (602) 839-3927
Fax: (602) 839-4233
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4300 E Flamingo Ave, Nampa, ID 83687-3138 — (208) 463-5000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 4871752 (ID)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1255072138
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2022
Last updated in NPPESOctober 14, 2025
Certification dateOctober 14, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF SOUTH CAROLINA SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Group practice Saint Alphonsus Regional Medical Center Inc — 673 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Saint Alphonsus Regional Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 673 clinicians in the practice; 12 are shown here.

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