Donald M. Delwood, M.D.
Internal Medicine Physician · Columbia, MO
Donald M. Delwood, M.D. is an internal medicine physician with a practice address in Columbia, Missouri, and NPI 1720036981, issued on May 4, 2006. Check the license (Missouri R4D49, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Donald M. Delwood
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R4D49 MO
Self-reported in NPPES; status is on the state search - Practice location
- 401 Keene St, Columbia, MO 65201
- Phone
- (573) 876-1666
- Enumerated
- May 4, 2006
- Record last updated
- Mar 17, 2025
- Fax
- (573) 874-0665
- Medicaid ID
- 201970811 MO
- Medicare enrollment
- Enrolled (PECOS I20090529000067); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 401 Keene St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald M. Delwood 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 R4D49Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% more Medicare Part D claims than the average internal medicine physician in 2024
5,603 Medicare Part D claims for 256 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 183 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium457 claims
- Levothyroxine Sodium345 claims
- Repatha Sureclick206 claims
- Famotidine198 claims
- Lisinopril122 claims
- Tramadol Hcl114 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: $9,540.22
83 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Columbia Orthopaedic Group LLPColumbia, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Donald M. Delwood among 2,604 internal medicine physician records in Missouri
Donald M. Delwood, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1977 · median 2006 among the 1,443 with a school on file
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
213 internal medicine physician records list a practice address in Columbia
They are 213 of the 6,004 NPPES records with a practice address in Columbia, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Columbia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Brocksmith, D.O.Columbia, MO 652011922061373
- Thomas Ciolino, MDColumbia, MO 652011518924646
- Lynn Keplinger, M.D.Columbia, MO 652011184687311
- Damascene Kurukulasuriya, MDColumbia, MO 652011578526497
- Myo Lwin, M.D.Columbia, MO 652011457310021
- Carlos Sanchez, M.D.Columbia, MO 652011578528758
- Raymond Schondelmeyer, MDColumbia, MO 652011801895032
- Lyndell Scoles, MDColumbia, MO 652011689676231
Common questions
What is Donald M. Delwood, M.D.'s NPI number?
Donald M. Delwood, M.D.'s National Provider Identifier (NPI) is 1720036981, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald M. Delwood, M.D. located?
The NPPES record lists a practice address at 401 Keene St, Columbia, MO, 65201. Phone: (573) 876-1666. Providers update this record themselves, so call before visiting.
How can I verify Donald M. Delwood, M.D.'s license?
NPPES lists Missouri license number R4D49, 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 Donald M. Delwood, M.D. prescribe under Medicare Part D?
In 2024, Donald M. Delwood, M.D. had 5,603 Medicare Part D claims for 256 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.