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

Dr. Ralph Criss Armstrong Jr., MD

Individual provider Family Medicine Physician · NPI 1417975731

Dr. Ralph Criss Armstrong Jr., MD is registered under Family Practice in Grenada, Mississippi. Graduated from University of Mississippi School of Medicine in 1984, 42 years ago. Practices with State of Mississippi - University of Mississippi Medical Center, a 952-clinician group and accepts Medicare assignment. Licensed in Mississippi.

Years since qualifying
42
Trained at
University of Mississippi School of Medicine
Licensed in
MS
In the registry since
2006
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 Sunset Dr Ste F
Grenada, MS 38901-4086 Not confirmed with CMS for 16 years — call before visiting
Phone: (662) 226-5747
Fax: (662) 226-5622
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 12471 (MS)

Record details

NPI number1417975731
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2006
Last updated in NPPESJune 28, 2010

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice State Of Mississippi - University Of Mississippi Medical Center — 952 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 patients351
Services billed 4,284 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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. Those with a page here are linked.

  • Greenwood Leflore Hospital Hospital · Greenwood, MS
  • Tyler Holmes Memorial Hospital Cah Hospital · Winona, MS · listed as Tyler Holmes Memorial Hospital
  • University Of Mississippi Medical Center- Grenada Hospital · Grenada, MS · listed as State of Mississippi - University of Mississippi Medical Center
  • Accentcare Home Health Of Greenwood Home health agency · Greenwood, MS
  • Adoration Home Health Care Mississippi Home health agency · Cleveland, MS
  • Mississippi Homecare Of Eupora Home health agency · Eupora, MS
  • Vitalcaring Group Home health agency · Cleveland, MS

Colleagues at State of Mississippi - University of Mississippi Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 952 clinicians in the practice; 12 are shown here.

Other providers in Grenada