Mckayla M Dinwiddie, MD - Medicare Family Medicine in O Fallon, MO

Mckayla M Dinwiddie, MD is a medicare enrolled "Family Medicine" physician in O Fallon, Missouri. Her current practice location is 2299 Technology Dr Ste 320, O Fallon, Missouri. You can reach out to her office (for appointments etc.) via phone at (636) 695-0535.

Mckayla M Dinwiddie is licensed to practice in Missouri (license number 2026028283) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1194429290.

Contact Information

Mckayla M Dinwiddie, MD
2299 Technology Dr Ste 320,
O Fallon, MO 63368-7341
(636) 695-0535
(636) 695-0537

Map and Direction




Physician's Profile

Full NameMckayla M Dinwiddie
GenderFemale
SpecialityFamily Medicine
Location2299 Technology Dr Ste 320, O Fallon, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1194429290
  • Provider Enumeration Date: 03/30/2023
  • Last Update Date: 06/30/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3870951015
  • Enrollment ID: I20230621001669

Medical Identifiers

Medical identifiers for Mckayla M Dinwiddie such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194429290NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 2026028283 (Missouri)Primary
207Q00000XFamily Medicine 100277 (Wisconsin)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

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. Mckayla M Dinwiddie 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
Mckayla M Dinwiddie, MD
Po Box 959354,
Saint Louis, MO 63195-9354

Ph: (636) 695-0535
Mckayla M Dinwiddie, MD
2299 Technology Dr Ste 320,
O Fallon, MO 63368-7341

Ph: (636) 695-0535

Reviews and Comments


Family Medicine Doctors in O Fallon, MO

Samantha Dawn Warden, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20 Progress Point Pkwy Ste 108, O Fallon, MO 63368
Phone: 636-344-2400    Fax: 636-344-2401
Dr. Chandra K Wiewel, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1101 Highway K, O Fallon, MO 63366
Phone: 636-379-4590    Fax: 636-669-2401
Amanda Heidemann, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2630 Highway K, O Fallon, MO 63368
Phone: 636-980-5300    Fax: 636-980-5344
Ms. Betty Rachel Varghese, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 Progress Point Ct, O Fallon, MO 63368
Phone: 636-344-1151    Fax: 636-344-1176
Dr. Amy Colleen Mcclintock, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3449 Pheasant Meadow Dr Ste 107, O Fallon, MO 63368
Phone: 573-271-2927    Fax: 573-271-2928
John J. O'brien, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2630 Highway K, O Fallon, MO 63368
Phone: 636-240-5454    Fax: 618-980-5335
Dr. Amy Elizabeth Grawey, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 207 E Pitman St, O Fallon, MO 63366
Phone: 636-875-1140    Fax: 636-898-1960

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.