NPPES file of Aug 9, 2026

Robert G. Holzknecht, M.D.

Family Medicine Physician · Madisonville, KY

Robert G. Holzknecht, M.D. is a family medicine physician with a practice address in Madisonville, Kentucky, and NPI 1013978329, issued on Mar 28, 2006. Check the license (Kentucky 26609, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013978329
Name
Robert G. Holzknecht
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
26609 KY
Self-reported in NPPES; status is on the state search
Practice location
444 S Main St, Madisonville, KY 42431
Phone
(270) 821-4444
Enumerated
Mar 28, 2006
Record last updated
Aug 14, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(270) 821-9188
Medicaid ID
6426609100 KY
Medicare enrollment
Enrolled (PECOS I20060926000490); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 1988
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 1,968 in Kentucky → Look up another NPI →

Also registered at 444 S Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Craig Amundson, M. D.Internal Medicine Physician1548221120
  2. Tammy Barton, P.T.Physical Therapist1558479071
  3. Tammy Clayton, PA-CPhysician Assistant1629039201
  4. Eden Elfrink, DOFamily Medicine Physician1841854031
  5. Tracey Ervin, RPHPharmacist1740587450
  6. John Farmer, M. D.Family Medicine Physician1285695866

Verify Robert G. Holzknecht in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 26609    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Kentucky license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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35% fewer Medicare Part D claims than the average family medicine physician in 2024

2,291 Medicare Part D claims for 804 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 78 claims were for opioids.

  1. Robert Holzknecht2,291
  2. Specialty average3,544

Most prescribed

  1. Doxycycline Monohydrate169 claims
  2. Cefdinir147 claims
  3. Prednisone127 claims
  4. Cefuroxime106 claims
  5. Ciprofloxacin Hcl98 claims
  6. Cephalexin82 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.

Bills Medicare through one group practice

  1. Owensboro Health Medical Group IncOwensboro, KY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert G. Holzknecht among 1,968 family medicine physician records in Kentucky

Robert G. Holzknecht, M.D. is one of 1,968 family medicine physician records with a practice address in Kentucky. 80% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 50% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1988 · median 2006 among the 1,277 with a school on file
  • Record last updated2012 · 57% 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 family medicine physician records list a practice address in Madisonville

They are 41 of the 685 NPPES records with a practice address in Madisonville, and 1,968 family medicine physician records in Kentucky.

All 1,968 in Kentucky → Every provider in Madisonville → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. James Bowles, MDMadisonville, KY 424311316043516
  2. John Farmer, M. D.Madisonville, KY 424311285695866
  3. Stacey Fazenbaker, M. D.Madisonville, KY 424311487615787
  4. Deborah Gregory, DOMadisonville, KY 424311477590412
  5. Forrest Hanke, MDMadisonville, KY 424311295831279
  6. Kenneth Hargrove, M. D.Madisonville, KY 424311467413047
  7. Robert Hughes, MDMadisonville, KY 424311326029786
  8. Kent Jones, MDMadisonville, KY 424311780780783

Common questions

What is Robert G. Holzknecht, M.D.'s NPI number?

Robert G. Holzknecht, M.D.'s National Provider Identifier (NPI) is 1013978329, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert G. Holzknecht, M.D. located?

The NPPES record lists a practice address at 444 S Main St, Madisonville, KY, 42431. Phone: (270) 821-4444. Providers update this record themselves, so call before visiting.

How can I verify Robert G. Holzknecht, M.D.'s license?

NPPES lists Kentucky license number 26609, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Robert G. Holzknecht, M.D. prescribe under Medicare Part D?

In 2024, Robert G. Holzknecht, M.D. had 2,291 Medicare Part D claims for 804 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.