Heather J. Ohnemus, ARNP
Nurse Practitioner · De Witt, IA
Heather J. Ohnemus, ARNP is a nurse practitioner with a practice address in De Witt, Iowa, and NPI 1851673933, issued on Sep 14, 2011. Check the license (Iowa H121913, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heather J. Ohnemus
- Credential
- ARNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- H121913 IA
209009064 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1008 11TH St, De Witt, IA 52742
- Phone
- (563) 659-9137
- Enumerated
- Sep 14, 2011
- Record last updated
- Apr 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (563) 659-9869
- Medicare enrollment
- Enrolled (PECOS I20170317001664); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,294 in Iowa → Look up another NPI →
Also registered at 1008 11TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heather J. Ohnemus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license H121913Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average nurse practitioner in 2024
3,909 Medicare Part D claims for 544 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 135 claims were for opioids.
Most prescribed
- Atorvastatin Calcium262 claims
- Amlodipine Besylate183 claims
- Metoprolol Succinate163 claims
- Lisinopril155 claims
- Duloxetine Hcl121 claims
- Levothyroxine Sodium116 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 2 group practices
- Genesis Health SystemDe Witt, IA
- Progressive Rehabilitation Associates LLCIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heather J. Ohnemus among 1,294 nurse practitioner records in Iowa
Heather J. Ohnemus, ARNP is one of 1,294 nurse practitioner records with a practice address in Iowa. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 31% of them.
- NPI issued2011 · 31% of these records are older, 67% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2011 · median 2018 among the 873 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 363L00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 nurse practitioner record lists a practice address in De Witt
They are 1 of the 69 NPPES records with a practice address in De Witt, and 1,294 nurse practitioner records in Iowa.
All 1,294 in Iowa → Every provider in De Witt → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Alec AustinDurant, IA 527471174220321
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- Dorothy Anderson, ARNPClinton, IA 527321013160761
- Elsie Buehler, APRNClinton, IA 527321699843672
- Kelly Jergenson, ARNPClinton, IA 527321114921772
- Robyn Landon, NPClinton, IA 527321376381228
- Aubrey MatthiesenClinton, IA 527321861043010
- Jennifer Williams, ARNPClinton, IA 527321770452484
Common questions
What is Heather J. Ohnemus, ARNP's NPI number?
Heather J. Ohnemus, ARNP's National Provider Identifier (NPI) is 1851673933, issued on Sep 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Heather J. Ohnemus, ARNP located?
The NPPES record lists a practice address at 1008 11TH St, De Witt, IA, 52742. Phone: (563) 659-9137. Providers update this record themselves, so call before visiting.
How can I verify Heather J. Ohnemus, ARNP's license?
NPPES lists Iowa license number H121913, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Heather J. Ohnemus, ARNP prescribe under Medicare Part D?
In 2024, Heather J. Ohnemus, ARNP had 3,909 Medicare Part D claims for 544 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.