Preston B. Howerton, DO
Internal Medicine Physician · Marshall, MO
Preston B. Howerton, DO is an internal medicine physician with a practice address in Marshall, Missouri, and NPI 1023004652, issued on Sep 20, 2005. Check the license (Missouri 2005029307, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Preston B. Howerton
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2005029307 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2305 South 65 Highway, Marshall, MO 65340
- Phone
- (660) 886-7431
- Enumerated
- Sep 20, 2005
- Record last updated
- Mar 5, 2024
- Fax
- (660) 831-3361
- Medicaid ID
- 207294208 MO
- Medicare enrollment
- Enrolled (PECOS I20070530000385); 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 2305 South 65 Highway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Judith Boland, RN, MSN, ACNS-BCAdult Health Clinical Nurse Specialist1114151461
- Emily Braun, RNRegistered Nurse1659769115
- Paul Brizendine, MDEmergency Medicine Physician1265411045
- Brian Brown, CRNACertified Registered Nurse Anesthetist1861417180
- Jana Curry, RDNRegistered Dietitian1255888228
Verify Preston B. Howerton 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 2005029307Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,604 Medicare Part D claims for 198 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 84 claims were for opioids.
Most prescribed
- Amlodipine Besylate113 claims
- Lisinopril113 claims
- Metformin Hcl112 claims
- Atorvastatin Calcium109 claims
- Simvastatin98 claims
- Levothyroxine Sodium79 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: $13.80
1 payment: food and beverage; the largest payer was Pfizer 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
- John Fitzgibbon Memorial Hospital IncMarshall, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Preston B. Howerton among 2,604 internal medicine physician records in Missouri
Preston B. Howerton, DO 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2004 · median 2006 among the 1,443 with a school on file
- Record last updated2024 · 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).
5 internal medicine physician records list a practice address in Marshall
They are 5 of the 192 NPPES records with a practice address in Marshall, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Marshall → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Darin Haug, DOMarshall, MO 653401902879760
- Timothy Ryan, D.O.Marshall, MO 653401790721520
- Craig Simons, D.O.Marshall, MO 653401073568846
- Jack Uhrig, M.D.Marshall, MO 653401720024557
- Franz Lopez Gonzalez, M.D.Warsaw, MO 653551104514751
- Erik Miller, D.O.Warsaw, MO 653551235131723
- Kenneth Azan, MDSedalia, MO 653011003843848
- Gregory Doak, MDSedalia, MO 653011588650741
Common questions
What is Preston B. Howerton, DO's NPI number?
Preston B. Howerton, DO's National Provider Identifier (NPI) is 1023004652, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Preston B. Howerton, DO located?
The NPPES record lists a practice address at 2305 South 65 Highway, Marshall, MO, 65340. Phone: (660) 886-7431. Providers update this record themselves, so call before visiting.
How can I verify Preston B. Howerton, DO's license?
NPPES lists Missouri license number 2005029307, 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 Preston B. Howerton, DO prescribe under Medicare Part D?
In 2024, Preston B. Howerton, DO had 2,604 Medicare Part D claims for 198 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.