NPPES file of Aug 9, 2026

Donald Conklin, M.D.

Internal Medicine Physician · Ottumwa, IA

Donald Conklin, M.D. is an internal medicine physician with a practice address in Ottumwa, Iowa, and NPI 1285613323, issued on Jan 16, 2006. Check the license (Iowa MD-40980, as entered in NPPES) on the Iowa Board of Medicine; 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
1285613323
Name
Donald Conklin
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD-40980 IA
00027006 AL
E-10536 AR
H4314 TX
Self-reported in NPPES; status is on the state search
Practice location
1001 Pennsylvania Ave, Ottumwa, IA 52501
Phone
(641) 984-2341
Enumerated
Jan 16, 2006
Record last updated
Jan 26, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110608000834); accepts Medicare assignment
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 1001 Pennsylvania Ave

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

  1. Shelley Bechtel, FNP-BCFamily Nurse Practitioner1245601087
  2. Maxwell Bodholdt, DPTPhysical Therapist1639904279
  3. Jonathan Cardon, RNAdult Psychiatric/Mental Health Registered Nurse1275372955
  4. Jennifer Cook, CRNAAnesthesiology Physician1659877066
  5. Lisa Cox, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1861733586
  6. Randall Dieleman, DOEmergency Medicine Physician1538709985

Verify Donald Conklin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license MD-40980
    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 Iowa license search

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94% fewer Medicare Part D claims than the average internal medicine physician in 2024

181 Medicare Part D claims for 142 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Donald Conklin181
  2. Specialty average3,176

Most prescribed

  1. Cephalexin51 claims
  2. Methylprednisolone31 claims
  3. Ciprofloxacin Hcl19 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. Rosebud Indian Health ServiceRosebud, SD

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

Donald Conklin among 871 internal medicine physician records in Iowa

Donald Conklin, M.D. is one of 871 internal medicine physician records with a practice address in Iowa. 70% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 62% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2002 · median 2008 among the 386 with a school on file
  • Record last updated2021 · 46% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 internal medicine physician records list a practice address in Ottumwa

They are 10 of the 405 NPPES records with a practice address in Ottumwa, and 871 internal medicine physician records in Iowa.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Shazia Abbas, MDOttumwa, IA 525011205086998
  2. Jashim Ahmed, MDOttumwa, IA 525011538145784
  3. Stanley Blew, MDOttumwa, IA 525011093791030
  4. Robert Blommer, MDOttumwa, IA 525011770569717
  5. Steven Ellison, MDOttumwa, IA 525011740267723
  6. Lani Joelle Go, M.D.Ottumwa, IA 525011063826857
  7. Florita Henderson, MDOttumwa, IA 525011770711939
  8. Peter Reiter, MDOttumwa, IA 525011659350429

Common questions

What is Donald Conklin, M.D.'s NPI number?

Donald Conklin, M.D.'s National Provider Identifier (NPI) is 1285613323, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald Conklin, M.D. located?

The NPPES record lists a practice address at 1001 Pennsylvania Ave, Ottumwa, IA, 52501. Phone: (641) 984-2341. Providers update this record themselves, so call before visiting.

How can I verify Donald Conklin, M.D.'s license?

NPPES lists Iowa license number MD-40980, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Donald Conklin, M.D. prescribe under Medicare Part D?

In 2024, Donald Conklin, M.D. had 181 Medicare Part D claims for 142 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.