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

Mr. Mark M Macelwee, MD

Individual provider Hospitalist Physician · NPI 1437133378

Mr. Mark M Macelwee, MD practises Internal Medicine in Phoenix, Arizona. Qualified in 1995, 31 years ago. Practices with District Medical Group Inc, a 450-clinician group and accepts Medicare assignment. Licensed in Arizona and Colorado.

Years since qualifying
31
Licensed in
AZ, CO
In the registry since
2005
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

2525 E Roosevelt St
Phoenix, AZ 85008
Phone: (602) 344-1119
Fax: (602) 344-1112
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 26806 (AZ)
Hospitalist Physician Taxonomy 208M00000X · Licence DR40558 (CO)

Record details

NPI number1437133378
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 5, 2005
Last updated in NPPESJuly 23, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice District Medical Group Inc — 450 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients66
Services billed 178 a service is one billed item, such as a visit, a test or a procedure
Average patient age64

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.

  • Valleywise Health Medical Center Hospital · Phoenix, AZ

Colleagues at District Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 450 clinicians in the practice; 12 are shown here.

Other providers in Phoenix