Ralph Criss Armstrong, M.D.
Family Medicine Physician · Grenada, MS
Ralph Criss Armstrong, M.D. is a family medicine physician with a practice address in Grenada, Mississippi, and NPI 1417975731, issued on Jul 17, 2006. Check the license (Mississippi 12471, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Ralph Armstrong
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 12471 MS
Self-reported in NPPES; status is on the state search - Practice location
- 1300 Sunset Dr, Grenada, MS 38901
- Phone
- (662) 226-5747
- Enumerated
- Jul 17, 2006
- Record last updated
- Jun 28, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (662) 226-5622
- Medicaid IDs
- 0112659 MS
09013778 MS
09014826 MS - Medicare enrollment
- Enrolled (PECOS I20120131000576); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 1984
- Entity
- Type 1 · individual
Also registered at 1300 Sunset Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathy AllenHearing Instrument Specialist1700983855
- Kathy Armstrong, O.T.Occupational Therapist1356459101
- Latia Butts, CFNPNurse Practitioner1164731931
- Ralph Cain, FNPFamily Nurse Practitioner1245462282
- Blenda Chambley, FNPFamily Nurse Practitioner1922029131
- Emily Fite, FNPFamily Nurse Practitioner1457467318
Verify Ralph Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 12471Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.2 times the Medicare Part D claims of the average family medicine physician in 2024
11,269 Medicare Part D claims for 467 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 21 claims were for opioids.
Most prescribed
- Amlodipine Besylate553 claims
- Potassium Chloride416 claims
- Levothyroxine Sodium410 claims
- Rosuvastatin Calcium389 claims
- Atorvastatin Calcium369 claims
- Pantoprazole Sodium340 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $53.63
3 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- State OF Mississippi-University OF Mississippi Medical CenterGrenada, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
8 family medicine physician records list a practice address in Grenada
They are 8 of the 182 NPPES records with a practice address in Grenada, and 1,165 family medicine physician records in Mississippi.
All 8 in Grenada → All 1,165 in Mississippi → Every provider in Grenada →
Other family medicine physician records in Mississippi
- Abdu Mohamed Abdallah Ahmed, MDJackson, MS1851824171
- Kevin Abel, M.D.Baldwyn, MS1134356272
- George Abraham, MDVicksburg, MS1184669798
- Audie Adams, M.D.Senatobia, MS1811074511
- Dennis Adams, MDMendenhall, MS1033137658
- John Adams, MDPontotoc, MS1013026970
- Charles Adedara, MDJackson, MS1184085235
- Onaola AdedejiMeridian, MS1952155665
- Jerry Adkins, M.D.D Ilberville, MS1760426563
- Emmanuel Agbeti, M.DJackson, MS1124815352
Common questions
What is Ralph Criss Armstrong, M.D.'s NPI number?
Ralph Criss Armstrong, M.D.'s National Provider Identifier (NPI) is 1417975731, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Criss Armstrong, M.D. located?
The NPPES record lists a practice address at 1300 Sunset Dr, Grenada, MS, 38901. Phone: (662) 226-5747. Providers update this record themselves, so call before visiting.
How can I verify Ralph Criss Armstrong, M.D.'s license?
NPPES lists Mississippi license number 12471, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ralph Criss Armstrong, M.D. prescribe under Medicare Part D?
In 2024, Ralph Criss Armstrong, M.D. had 11,269 Medicare Part D claims for 467 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Ralph Criss Armstrong, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.