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

Dr. Syed Mojiz Ul Hasan, MD

Individual provider Medical Oncology Physician · NPI 1285086868

Dr. Syed Mojiz Ul Hasan, MD is an Internal Medicine in Festus, Missouri. Qualified in 2013, 13 years ago. Practices with Mercy Clinic Oncology LLC, a 30-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
13
Licensed in
MO
In the registry since
2016
Specialties on file
3
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

1350 US Highway 61
Festus, MO 63028-4124
Phone: (636) 931-3655
Show map & directions

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

Additional practice locations (2)

  • 550 Maple Valley Dr, Farmington, MO 63640-1981 — (636) 931-3655
  • 6500 Hospital Dr, Hannibal, MO 63401-6890 — (573) 629-3331

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 2019024553 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2019024553 (MO)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 2019024553 (MO)

Record details

NPI number1285086868
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2016
Last updated in NPPESAugust 5, 2026
Certification dateAugust 5, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Mercy Clinic Oncology Llc — 30 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount