Ann Elizabeth Dettlaff, APNP
Nurse Practitioner · Oshkosh, WI
Ann Elizabeth Dettlaff, APNP is a nurse practitioner with a practice address in Oshkosh, Wisconsin, and NPI 1215236278, issued on Mar 16, 2011. Check the license (Wisconsin 4360-033, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ann Elizabeth Dettlaff
- Credential
- APNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 4360-033 WI
4360-33 WI
Self-reported in NPPES; status is on the state search - Practice location
- 250 W 6TH Ave, Oshkosh, WI 54902
- Phone
- (920) 237-5000
- Enumerated
- Mar 16, 2011
- Record last updated
- Apr 29, 2026
- Fax
- (920) 237-5011
- Medicaid IDs
- 100014463 WI
1215236278 WI - Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 250 W 6TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ann Elizabeth Dettlaff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 4360-033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average nurse practitioner in 2024
719 Medicare Part D claims for 154 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium57 claims
- Losartan Potassium35 claims
- Omeprazole35 claims
- Amlodipine Besylate21 claims
- Levothyroxine Sodium20 claims
- Furosemide19 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.
Ann Elizabeth Dettlaff among 3,995 nurse practitioner records in Wisconsin
Ann Elizabeth Dettlaff, APNP is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% 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, 65% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2026 · 41% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
92 nurse practitioner records list a practice address in Oshkosh
They are 92 of the 1,527 NPPES records with a practice address in Oshkosh, and 3,995 nurse practitioner records in Wisconsin.
All 3,995 in Wisconsin → Every provider in Oshkosh → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Evelyn Andersen, ARNPOshkosh, WI 549021295262772
- Ashley Andrus, APNPOshkosh, WI 549021578948899
- Karie Chapman, NPOshkosh, WI 549021346548328
- Natasha GarbeOshkosh, WI 549021588155139
- Donna Hawley, APNPOshkosh, WI 549021770050585
- Sara Kolell, APNPOshkosh, WI 549021063694537
- Laura McGuire, APNOshkosh, WI 549021780928689
- Tricia PromerOshkosh, WI 549021932427929
Common questions
What is Ann Elizabeth Dettlaff, APNP's NPI number?
Ann Elizabeth Dettlaff, APNP's National Provider Identifier (NPI) is 1215236278, issued on Mar 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ann Elizabeth Dettlaff, APNP located?
The NPPES record lists a practice address at 250 W 6TH Ave, Oshkosh, WI, 54902. Phone: (920) 237-5000. Providers update this record themselves, so call before visiting.
How can I verify Ann Elizabeth Dettlaff, APNP's license?
NPPES lists Wisconsin license number 4360-033, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Ann Elizabeth Dettlaff, APNP prescribe under Medicare Part D?
In 2024, Ann Elizabeth Dettlaff, APNP had 719 Medicare Part D claims for 154 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.