James R. Grimes, M.D.
Family Medicine Physician · Warrenton, MO
James R. Grimes, M.D. is a family medicine physician with a practice address in Warrenton, Missouri, and NPI 1649262106, issued on Aug 19, 2005. Check the license (Missouri 2006001772, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- James R. Grimes
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 2006001772 MO
51139 GA
Self-reported in NPPES; status is on the state search - Practice location
- 605 E Boonslick Road, Warrenton, MO 63383
- Phone
- (636) 456-6103
- Enumerated
- Aug 19, 2005
- Record last updated
- Jan 26, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (636) 390-4341
- Medicare enrollment
- Enrolled (PECOS I20060426000293); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Verify James R. Grimes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2006001772Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average family medicine physician in 2024
16,029 Medicare Part D claims for 884 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. 382 claims were for opioids.
Most prescribed
- Atorvastatin Calcium779 claims
- Lisinopril626 claims
- Rosuvastatin Calcium617 claims
- Levothyroxine Sodium540 claims
- Amlodipine Besylate530 claims
- Omeprazole515 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: $1,370.00
71 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Mercy Clinic East CommunitiesMarthasville, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James R. Grimes among 2,991 family medicine physician records in Missouri
James R. Grimes, M.D. is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1999 · median 2006 among the 1,778 with a school on file
- Record last updated2012 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family medicine physician records list a practice address in Warrenton
They are 5 of the 186 NPPES records with a practice address in Warrenton, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Warrenton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Charles Coyne, M.D.Warrenton, MO 633831295048031
- Christopher Graves, D.O.Warrenton, MO 633831215929732
- Todd Horstman, MDWarrenton, MO 633831275913790
- Chad Smith, D.O.Warrenton, MO 633831982600615
- Shawndra Brown-Foote, MDWentzville, MO 633851801998513
- James Cuellar, MDWentzville, MO 633851912917998
- David Dorsey, MDWentzville, MO 633851891992608
- John Emmons, DOWentzville, MO 633851437275948
Common questions
What is James R. Grimes, M.D.'s NPI number?
James R. Grimes, M.D.'s National Provider Identifier (NPI) is 1649262106, issued on Aug 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James R. Grimes, M.D. located?
The NPPES record lists a practice address at 605 E Boonslick Road, Warrenton, MO, 63383. Phone: (636) 456-6103. Providers update this record themselves, so call before visiting.
How can I verify James R. Grimes, M.D.'s license?
NPPES lists Missouri license number 2006001772, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James R. Grimes, M.D. prescribe under Medicare Part D?
In 2024, James R. Grimes, M.D. had 16,029 Medicare Part D claims for 884 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.