Dr James R Grimes, MD - Medicare Family Practice in Warrenton, MO

Dr James R Grimes, MD is a medicare enrolled "Family Medicine" physician in Warrenton, Missouri. He went to Saint Louis University School Of Medicine and graduated in 1999 and has 25 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice American Multispecialty Group Inc, Ssm Select Rehab St Louis Llc and his current practice location is 605 E Boonslick Road, Suite B, Warrenton, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 456-6103.

Dr James R Grimes is licensed to practice in Missouri (license number 2006001772) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1649262106.

Contact Information

Dr James R Grimes, MD
605 E Boonslick Road, Suite B,
Warrenton, MO 63383
(636) 456-6103
(636) 390-4341

Map and Direction




Physician's Profile

Full NameDr James R Grimes
GenderMale
SpecialityFamily Practice
Experience25 Years
Location605 E Boonslick Road, Warrenton, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr James R Grimes attended and graduated from Saint Louis University School Of Medicine in 1999
  NPI Data:
  • NPI Number: 1649262106
  • Provider Enumeration Date: 08/19/2005
  • Last Update Date: 01/26/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 3678583317
  • Enrollment ID: I20060426000293

Medical Identifiers

Medical identifiers for Dr James R Grimes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649262106NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 51139 (Georgia)Secondary
207Q00000XFamily Medicine 2006001772 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Home HealthSaint louis, MOHome health agency
Heartland Hospice ServicesSaint louis, MOHospice
Mercy Hospital WashingtonWashington, MOHospital
Ssm St Joseph Hospital WestLake saint louis, MOHospital
Mercy Hospital St LouisSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
American Multispecialty Group Inc1658365572146
Ssm Select Rehab St Louis Llc2567510449119

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr James R Grimes allows following entities to bill medicare on his behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285664177
PECOS PAC ID: 3779479019
Enrollment ID: O20040224001164
Entity NameAmerican Multispecialty Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972559532
PECOS PAC ID: 1658365572
Enrollment ID: O20040413001412
Entity NameMercy Clinic East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073739041
PECOS PAC ID: 7214827922
Enrollment ID: O20070521000058

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr James R Grimes is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr James R Grimes, MD
901 Patients First Dr,
Washington, MO 63090-4700

Ph: (636) 239-4100
Dr James R Grimes, MD
605 E Boonslick Road, Suite B,
Warrenton, MO 63383

Ph: (636) 456-6103

Reviews and Comments


Family Medicine Doctors in Warrenton, MO

Dr. Joy H Ablordeppey, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 19515 Brune Pkwy, Warrenton, MO 63383
Phone: 844-853-8937    
Dr. Christopher Gene Graves, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 605 E Booneslick Rd, Suite One, Warrenton, MO 63383
Phone: 636-456-1448    Fax: 636-456-9093
Dr. Todd Horstman, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 18800 Schnucks Dr, Warrenton, MO 63383
Phone: 636-456-3413    
Dr. Charles Patrick Coyne Iii, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 521 Anwijo Way, Warrenton, MO 63383
Phone: 636-456-6103    Fax: 636-456-6124
Dr. Chad J. Smith, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 18800 Schnucks Dr Ste B, Warrenton, MO 63383
Phone: 636-456-3413    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.