Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Kellen Mastick, MD

Individual provider Internal Medicine Physician · NPI 1538655709

Kellen Mastick, MD is a Hospitalist in South Bend, Indiana. Qualified in 2018, 8 years ago. Practices with Beacon Medical Group Inc, a 574-clinician group and accepts Medicare assignment. Licensed in Indiana and North Dakota.

Years since qualifying
8
Licensed in
IN, ND
In the registry since
2018
Specialties on file
2
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

615 N Michigan St 1st Fl Hospitalist Ste
South Bend, IN 46601-1033
Phone: (574) 647-3050
Fax: (574) 647-4320
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01087004A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 15248 (ND)

Record details

NPI number1538655709
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2018
Last updated in NPPESMay 1, 2023
Certification dateMay 1, 2023

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Beacon Medical Group Inc — 574 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients178
Services billed 537 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Beacon Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 574 clinicians in the practice; 12 are shown here.

Other providers in South Bend