Walter William Merriman, DO
Neurology Physician · Columbia, MO
Walter William Merriman, DO is a neurology physician with a practice address in Columbia, Missouri, and NPI 1770269961, issued on Jun 23, 2023. Check the license (Missouri 2023020857, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Walter William Merriman
- Credential
- DO
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 2023020857 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hospital Dr, Columbia, MO 65201
- Phone
- (573) 882-4141
- Enumerated
- Jun 23, 2023
- Record last updated
- Jun 23, 2023
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 484 in Missouri → Look up another NPI →
Also registered at 1 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Matthew AtwoodStudent in an Organized Health Care Education/Training Program1669249595
- Blake Barnes, M.D.Internal Medicine Physician1477849602
- Katheryn Bell, MDInternal Medicine Physician1821832718
- Austyn Belle Isle, CRNACertified Registered Nurse Anesthetist1417210949
Verify Walter William Merriman 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 2023020857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average neurology physician in 2024
50 Medicare Part D claims for 26 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of 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.
Walter William Merriman among 484 neurology physician records in Missouri
Walter William Merriman, DO is one of 484 neurology physician records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 88% of them.
- NPI issued2023 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2023 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Missouri
There are 484 neurology physician records in Missouri.
All 484 in Missouri → Every provider in Columbia → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Ahmed Abbas, MDColumbia, MO 652011215420740
- Sudhir Batchu, MDColumbia, MO 652011871698662
- Robert Burger, M.D.Columbia, MO 652011053369231
- William Crowley, M.D.Columbia, MO 652011255603809
- Myles Goble, MDColumbia, MO 652011013028745
- Vernita Hairston, M.D.Columbia, MO 652011972589570
- Madihah HepburnColumbia, MO 652011417339383
- Gary Jay, MDColumbia, MO 652011063839793
Common questions
What is Walter William Merriman, DO's NPI number?
Walter William Merriman, DO's National Provider Identifier (NPI) is 1770269961, issued on Jun 23, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Walter William Merriman, DO located?
The NPPES record lists a practice address at 1 Hospital Dr, Columbia, MO, 65201. Phone: (573) 882-4141. Providers update this record themselves, so call before visiting.
How can I verify Walter William Merriman, DO's license?
NPPES lists Missouri license number 2023020857, 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 Walter William Merriman, DO prescribe under Medicare Part D?
In 2024, Walter William Merriman, DO had 50 Medicare Part D claims for 26 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
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.