NPPES file of Aug 9, 2026

John Radcliffe Kothmann, M.D.

Family Medicine Physician · Fredericksburg, TX

John Radcliffe Kothmann, M.D. is a family medicine physician with a practice address in Fredericksburg, Texas, and NPI 1780624502, issued on Jun 8, 2006. Check the license (Texas L8578, as entered in NPPES) on the Texas Medical Board; 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
1780624502
Name
John Radcliffe Kothmann
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
L8578 TX
Self-reported in NPPES; status is on the state search
Practice location
1308 South Highway 16, Fredericksburg, TX 78624
Phone
(830) 997-2181
Enumerated
Jun 8, 2006
Record last updated
Apr 4, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(830) 997-9598
Medicaid ID
166270201 TX
Medicare enrollment
Enrolled (PECOS I20040812000650); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2001
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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Also registered at 1308 South Highway 16

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

  1. Rebecca Daley, D.O.Family Medicine Physician1356348288
  2. Emily Evans, MS, RN, FNP-BCFamily Nurse Practitioner1033366109
  3. Kathleen Fryburger, P.A.Physician Assistant1053396077
  4. Jeffrey Holt, MDFamily Medicine Physician1700090826
  5. Loretta Keese, PAPhysician Assistant1790704963
  6. Ottis Layne, MDFamily Medicine Physician1902967128

Verify John Radcliffe Kothmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L8578
    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 Texas 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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4.1 times the Medicare Part D claims of the average family medicine physician in 2024

14,695 Medicare Part D claims for 741 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 769 claims were for opioids.

  1. John Kothmann14,695
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium459 claims
  2. Atorvastatin Calcium430 claims
  3. Losartan Potassium395 claims
  4. Amlodipine Besylate387 claims
  5. Hydrocodone-Acetaminophen369 claims
  6. Lisinopril347 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. Fredericksburg Clinic PLLCFredericksburg, TX

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

John Radcliffe Kothmann among 11,119 family medicine physician records in Texas

John Radcliffe Kothmann, M.D. is one of 11,119 family medicine physician records with a practice address in Texas. 82% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2001 · median 2004 among the 7,095 with a school on file
  • Record last updated2011 · 51% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 family medicine physician records list a practice address in Fredericksburg

They are 22 of the 331 NPPES records with a practice address in Fredericksburg, and 11,119 family medicine physician records in Texas.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Cantu, M.D.Fredericksburg, TX 786241538145206
  2. Karen Cornett, MDFredericksburg, TX 786241376538223
  3. Rebecca Daley, D.O.Fredericksburg, TX 786241356348288
  4. Mark Eden, MDFredericksburg, TX 786241275528119
  5. Suzanne Ellison, MDFredericksburg, TX 786241285620211
  6. Yvonne Haug, M.D.Fredericksburg, TX 786241366427379
  7. Matthew Hoermann, MDFredericksburg, TX 786241790770634
  8. Ottis Layne, MDFredericksburg, TX 786241902967128

Common questions

What is John Radcliffe Kothmann, M.D.'s NPI number?

John Radcliffe Kothmann, M.D.'s National Provider Identifier (NPI) is 1780624502, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Radcliffe Kothmann, M.D. located?

The NPPES record lists a practice address at 1308 South Highway 16, Fredericksburg, TX, 78624. Phone: (830) 997-2181. Providers update this record themselves, so call before visiting.

How can I verify John Radcliffe Kothmann, M.D.'s license?

NPPES lists Texas license number L8578, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Radcliffe Kothmann, M.D. prescribe under Medicare Part D?

In 2024, John Radcliffe Kothmann, M.D. had 14,695 Medicare Part D claims for 741 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.