Raymond F. Grenfell, Jr., M.D.
Endocrinology, Diabetes & Metabolism Physician · Jackson, MS
Raymond F. Grenfell, Jr., M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Jackson, Mississippi, and NPI 1851309165, issued on Aug 3, 2006. Check the license (Mississippi 07011, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Raymond F. Grenfell, Jr.
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 07011 MS
Self-reported in NPPES; status is on the state search - Practice location
- 1151 N State St, Jackson, MS 39202
- Phone
- (601) 948-5158
- Enumerated
- Aug 3, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (601) 949-6058
- Medicaid ID
- 00017558 MS
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 55 in Mississippi → Look up another NPI →
Also registered at 1151 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Raymond F. Grenfell, Jr. in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 07011Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
588 Medicare Part D claims for 78 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Synthroid61 claims
- Levothyroxine Sodium56 claims
- Atorvastatin Calcium39 claims
- Farxiga32 claims
- Glimepiride25 claims
- Jardiance24 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.
Industry payments in 2024: $493.97
27 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Raymond F. Grenfell, Jr. among 55 endocrinology, diabetes & metabolism physician records in Mississippi
Raymond F. Grenfell, Jr., M.D. is one of 55 endocrinology, diabetes & metabolism physician records with a practice address in Mississippi. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 55% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2007 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Mississippi
There are 55 endocrinology, diabetes & metabolism physician records in Mississippi.
All 55 in Mississippi → Every provider in Jackson → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Honey East, MDJackson, MS 392021932132495
- Christina Glover, M.D.Jackson, MS 392021356638845
- Adrienne Maier, M.D.Jackson, MS 392021841601861
- Brower MyersJackson, MS 392021164360012
- Jana Phillips, M.D.Jackson, MS 392021477714731
- Dale Read, M.D.Jackson, MS 392021245302330
- Marianne Wilson, MDJackson, MS 392021255728010
- Lagina Foster, M.D.Jackson, MS 392061548452089
Common questions
What is Raymond F. Grenfell, Jr., M.D.'s NPI number?
Raymond F. Grenfell, Jr., M.D.'s National Provider Identifier (NPI) is 1851309165, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Raymond F. Grenfell, Jr., M.D. located?
The NPPES record lists a practice address at 1151 N State St, Jackson, MS, 39202. Phone: (601) 948-5158. Providers update this record themselves, so call before visiting.
How can I verify Raymond F. Grenfell, Jr., M.D.'s license?
NPPES lists Mississippi license number 07011, 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 Raymond F. Grenfell, Jr., M.D. prescribe under Medicare Part D?
In 2024, Raymond F. Grenfell, Jr., M.D. had 588 Medicare Part D claims for 78 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
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.