Casey Drew Williams, M.D.
Family Medicine Physician · Columbia, MO
Casey Drew Williams, M.D. is a family medicine physician with a practice address in Columbia, Missouri, and NPI 1215199377, issued on Jun 30, 2008. Check the license (Missouri 2011005792, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Casey Drew Williams
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2011005792 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2325 Smiley LN, Columbia, MO 65202
- Phone
- (573) 884-8980
- Enumerated
- Jun 30, 2008
- Record last updated
- Sep 12, 2022
- Fax
- (573) 884-0040
- Medicare enrollment
- Enrolled (PECOS I20110722000337); may accept Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 2325 Smiley LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Beckmann, MDFamily Medicine Physician1366494783
- Megan Burnam-Cole, DNP, BSNFamily Nurse Practitioner1962064352
- Richelle Koopman, M.D.Family Medicine Physician1003924960
- Misty McIntosh, PAPhysician Assistant1720018591
Verify Casey Drew Williams 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 2011005792Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average family medicine physician in 2024
5,046 Medicare Part D claims for 212 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 129 claims were for opioids.
Most prescribed
- Atorvastatin Calcium263 claims
- Lisinopril200 claims
- Amlodipine Besylate188 claims
- Omeprazole184 claims
- Levothyroxine Sodium178 claims
- Albuterol Sulfate Hfa156 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Casey Drew Williams among 2,991 family medicine physician records in Missouri
Casey Drew Williams, 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 42% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2008 · median 2006 among the 1,778 with a school on file
- Record last updated2022 · 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).
195 family medicine physician records list a practice address in Columbia
They are 195 of the 6,004 NPPES records with a practice address in Columbia, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Columbia → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joseph Beckmann, MDColumbia, MO 652021366494783
- Emma Cooper, MDColumbia, MO 652021861125387
- Seth Freeman, M.D.Columbia, MO 652021083975890
- Victoria Gustafson, MDColumbia, MO 652021619661204
- Melinda Hecker, MDColumbia, MO 652021508969312
- Richelle Koopman, M.D.Columbia, MO 652021003924960
- Candy Lincoln, M.D.Columbia, MO 652021326487109
- Marcia Mains, M.D.Columbia, MO 652021093194797
Common questions
What is Casey Drew Williams, M.D.'s NPI number?
Casey Drew Williams, M.D.'s National Provider Identifier (NPI) is 1215199377, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Casey Drew Williams, M.D. located?
The NPPES record lists a practice address at 2325 Smiley LN, Columbia, MO, 65202. Phone: (573) 884-8980. Providers update this record themselves, so call before visiting.
How can I verify Casey Drew Williams, M.D.'s license?
NPPES lists Missouri license number 2011005792, 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 Casey Drew Williams, M.D. prescribe under Medicare Part D?
In 2024, Casey Drew Williams, M.D. had 5,046 Medicare Part D claims for 212 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Casey Drew Williams, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.