Alyssa Keller, M.D.
Family Medicine Physician · O Fallon, MO
Alyssa Keller, M.D. is a family medicine physician with a practice address in O Fallon, Missouri, and NPI 1588892665, issued on Jun 26, 2009. Check the license (Missouri 2009017184, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Alyssa Keller
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2009017184 MO
Self-reported in NPPES; status is on the state search - Practice location
- 300 Winding Woods Dr, O Fallon, MO 63366
- Phone
- (636) 978-8600
- Enumerated
- Jun 26, 2009
- Entity
- Type 1 · individual
Also registered at 300 Winding Woods Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Louis Gaefke, DPMPodiatrist1629148648
- Leah Glass, D.O.Obstetrics & Gynecology Physician1093942997
- Sondra McClanahan, FNPFamily Nurse Practitioner1487747879
- Margaretta Mendenhall, M.D.Obstetrics & Gynecology Physician1275730111
- Julie Stewart, DPMFoot & Ankle Surgery Podiatrist1124165428
Verify Alyssa Keller 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 2009017184Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
9% more Medicare Part D claims than the average family medicine physician in 2024
3,832 Medicare Part D claims for 304 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. 73 claims were for opioids.
Most prescribed
- Atorvastatin Calcium337 claims
- Lisinopril224 claims
- Losartan Potassium195 claims
- Amlodipine Besylate177 claims
- Levothyroxine Sodium154 claims
- Rosuvastatin Calcium145 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: $792.30
44 payments, mostly food and beverage; the largest payer was Lilly USA, LLC. The 53,013 providers of this specialty with any payment received $861.30 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.
One hospital or facility affiliation
- Mercy Clinic East CommunitiesO Fallon, MO
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
37 family medicine physician records list a O Fallon practice address
They are 37 of the 1,225 NPPES records with a O Fallon practice address, and 2,920 family medicine physician records in Missouri.
All 37 in O Fallon → All 2,920 in Missouri → Every provider in O Fallon →
Other family medicine physician records in Missouri
- Mohammad Abbas, DOKirksville, MO1518537679
- Karam Abdelmasih, MD, APFestus, MO1093288508
- Afsheen Abdullah Patel, MDLees Summit, MO1598070377
- Christopher Abercrombie, DOArnold, MO1093787558
- Avery Abernathy, D.O.Kansas City, MO1013207836
- Kristia Abernathy, MDSaint Louis, MO1710545405
- Grant Abkemeier, DOColumbia, MO1922933712
- Beatrice Abraham, DOLebanon, MO1861056004
- John Abraham, M.D.Springfield, MO1760595136
- Samer Abu-Amer, M.D.Independence, MO1154880474
Common questions
What is Alyssa Keller, M.D.'s NPI number?
Alyssa Keller, M.D.'s National Provider Identifier (NPI) is 1588892665, issued on Jun 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Alyssa Keller, M.D. located?
The NPPES record lists a practice address at 300 Winding Woods Dr, O Fallon, MO, 63366. Phone: (636) 978-8600. Providers update this record themselves, so call before visiting.
How can I verify Alyssa Keller, M.D.'s license?
NPPES lists Missouri license number 2009017184, 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 Alyssa Keller, M.D. prescribe under Medicare Part D?
In 2024, Alyssa Keller, M.D. had 3,832 Medicare Part D claims for 304 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.