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

Dr. Fatima Belen Martinez, MD

Individual provider Internal Medicine Physician · NPI 1912327859

Dr. Fatima Belen Martinez, MD practises Internal Medicine in Phoenix, Arizona. Qualified in 2014, 12 years ago. Practices with Gila River Health Care Corporation, a 241-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
12
Licensed in
AZ
In the registry since
2014
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

4530 E Muirwood Dr Ste 105
Phoenix, AZ 85048-7693
Phone: (480) 961-2303
Fax: (480) 961-2306
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 53746 (AZ)

Record details

NPI number1912327859
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 18, 2014
Last updated in NPPESOctober 25, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Gila River Health Care Corporation — 241 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 patients122
Services billed 362 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

  • Huhu Kam Memorial Hospital Hospital · Sacaton, AZ

Colleagues at Gila River Health Care Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 241 clinicians in the practice; 12 are shown here.

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