Casey Williams, M.D.
NPI 1215199377 · Family Medicine Physician · Columbia, MO
Casey Williams, M.D. is a Family Medicine Physician provider in Columbia, MO (NPI 1215199377).
Provider details
- NPI number
- 1215199377
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2011005792 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
572 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 239 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 234 | $95 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $64 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 36 | $143 |
Typical Medicare-allowed amounts for these services range $16–$143 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 263 | 60 |
| Lisinopril | 200 | 49 |
| Amlodipine Besylate | 188 | 45 |
| Omeprazole | 184 | 41 |
| Levothyroxine Sodium | 178 | 34 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 156 | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-30
- Last updated
- 2022-09-12
Frequently asked questions
- What is Casey Williams's NPI number?
- Casey Williams's National Provider Identifier (NPI) is 1215199377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Casey Williams's specialty?
- Casey Williams is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Casey Williams located?
- Casey Williams's practice location on file with NPPES is 2325 Smiley Ln, Columbia, MO 65202-1947.
- What is Casey Williams's phone number?
- The practice phone number listed in the NPPES registry for Casey Williams is (573) 884-8980.
- Is Casey Williams's NPI active?
- Yes — Casey Williams's NPI (1215199377) is active in the NPPES registry as of the last update on 2022-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.