Charles Isaac Davis, MD
Geriatric Medicine (Internal Medicine) Physician · Osawatomie, KS
Charles Isaac Davis, MD is a geriatric medicine (internal medicine) physician with a practice address in Osawatomie, Kansas, and NPI 1346228921, issued on Jan 4, 2006. Check the license (Kansas 0429493, as entered in NPPES) on the Kansas State Board of Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Charles Isaac Davis
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License numbers
- 0429493 KS
2006018665 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1615 Parker Ave, Osawatomie, KS 66064
- Phone
- (913) 660-1616
- Enumerated
- Jan 4, 2006
- Record last updated
- Apr 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 27 in Kansas → Look up another NPI →
Also registered at 1615 Parker Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Danielle Banman, OTROccupational Therapist1275667016
- Kimberly BreitenbachOccupational Therapy Assistant1013224666
- Emily BusenitzPhysical Therapy Assistant1205360922
- Callie Callahan, APRNAdult Health Nurse Practitioner1144565433
Verify Charles Isaac Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKansas State Board of Healing Arts
Search for license 0429493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
65 Medicare Part D claims, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Levothyroxine Sodium14 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.
Charles Isaac Davis among 27 geriatric medicine (internal medicine) physician records in Kansas
Charles Isaac Davis, MD is one of 27 geriatric medicine (internal medicine) physician records with a practice address in Kansas. 59% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 41% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 37% of these records are
- Record last updated2018 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 geriatric medicine (internal medicine) physician record lists a practice address in Osawatomie
They are 1 of the 122 NPPES records with a practice address in Osawatomie, and 27 geriatric medicine (internal medicine) physician records in Kansas.
All 27 in Kansas → Every provider in Osawatomie → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Seema Joshi, MDLeavenworth, KS 660481245248095
- Dana Malis Sails, MDLeavenworth, KS 660481871558692
- Sally Rigler, M.D., M.P.H.Leavenworth, KS 660481942319710
- Marvin McIntosh, MDKansas City, KS 661041417054362
- Martha Avery, DNPKansas City, KS 661601770264798
- Autumn Brubaker, DOKansas City, KS 661601831650670
- Deon Hayley, DOKansas City, KS 661601336201896
- Jessica Kalender-Rich, MDKansas City, KS 661601912127697
Common questions
What is Charles Isaac Davis, MD's NPI number?
Charles Isaac Davis, MD's National Provider Identifier (NPI) is 1346228921, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles Isaac Davis, MD located?
The NPPES record lists a practice address at 1615 Parker Ave, Osawatomie, KS, 66064. Phone: (913) 660-1616. Providers update this record themselves, so call before visiting.
How can I verify Charles Isaac Davis, MD's license?
NPPES lists Kansas license number 0429493, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles Isaac Davis, MD prescribe under Medicare Part D?
In 2024, Charles Isaac Davis, MD had 65 Medicare Part D claims; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.