Glen C. Knowles, D.O.
Family Medicine Physician · Bradford, AR
Glen C. Knowles, D.O. is a family medicine physician with a practice address in Bradford, Arkansas, and NPI 1679579536, issued on Jun 24, 2005. Check the license (Arkansas E0193, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Glen C. Knowles
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- E0193 AR
Self-reported in NPPES; status is on the state search - Practice location
- 203 West Main Street, Bradford, AR 72020
- Phone
- (501) 344-2788
- Enumerated
- Jun 24, 2005
- Record last updated
- Mar 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (501) 344-8451
- Medicaid ID
- 125773003 AR
- Medicare enrollment
- Enrolled (PECOS I20040109001029); may accept Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1993
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,681 in Arkansas → Look up another NPI →
Verify Glen C. Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E0193Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average family medicine physician in 2024
885 Medicare Part D claims for 234 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Omeprazole35 claims
- Levothyroxine Sodium32 claims
- Lisinopril29 claims
- Amlodipine Besylate26 claims
- Albuterol Sulfate Hfa23 claims
- Gabapentin21 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.
One hospital affiliation
- White County Medical CenterHeber Springs, AR · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Glen C. Knowles among 1,681 family medicine physician records in Arkansas
Glen C. Knowles, D.O. is one of 1,681 family medicine physician records with a practice address in Arkansas. 87% 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, 86% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1993 · median 2004 among the 1,156 with a school on file
- Record last updated2010 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Arkansas
There are 1,681 family medicine physician records in Arkansas.
All 1,681 in Arkansas → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jill Bryson, M.D.Benton, AR 720191518090703
- Patricia McGarry, M.D.Benton, AR 720191891816153
- Dac Pham, M.D.Brinkley, AR 720211063409761
- Caryn TaylorBryant, AR 720191588008684
- Jennifer Ames, M.D.Bryant, AR 720221164734174
- Michael Beard, MDBenton, AR 720221316949167
- Jerry Cavaneau, M.D.Bryant, AR 720221639142284
- Marcus Chu, M.D.Bryant, AR 720221609188614
Common questions
What is Glen C. Knowles, D.O.'s NPI number?
Glen C. Knowles, D.O.'s National Provider Identifier (NPI) is 1679579536, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Glen C. Knowles, D.O. located?
The NPPES record lists a practice address at 203 West Main Street, Bradford, AR, 72020. Phone: (501) 344-2788. Providers update this record themselves, so call before visiting.
How can I verify Glen C. Knowles, D.O.'s license?
NPPES lists Arkansas license number E0193, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Glen C. Knowles, D.O. prescribe under Medicare Part D?
In 2024, Glen C. Knowles, D.O. had 885 Medicare Part D claims for 234 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.