Erin Elizabeth Diem, FNP
Family Nurse Practitioner · Greensburg, IN
Erin Elizabeth Diem, FNP is a family nurse practitioner with a practice address in Greensburg, Indiana, and NPI 1588190755, issued on May 10, 2017. Check the license (Indiana 71007568A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Elizabeth Diem
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 71007568A IN
1111959 KY
Self-reported in NPPES; status is on the state search - Practice location
- 955 N Michigan Ave Ste 4, Greensburg, IN 47240
- Phone
- (812) 662-6450
- Enumerated
- May 10, 2017
- Record last updated
- Mar 24, 2026
- Medicaid ID
- 1588190755 IN
- Medicare enrollment
- Enrolled (PECOS I20171109002756); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,867 in Indiana → Look up another NPI →
Also registered at 955 N Michigan Ave Ste 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amber Raeth, NPFamily Nurse Practitioner1043988975
Verify Erin Elizabeth Diem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 71007568ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average family nurse practitioner in 2024
190 Medicare Part D claims for 125 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Prednisone29 claims
- Azithromycin23 claims
- Amoxicillin-Clavulanate Potass19 claims
- Albuterol Sulfate Hfa15 claims
- Cephalexin13 claims
- Doxycycline Monohydrate11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $74.36
4 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Decatur County Memorial HospitalBatesville, IN · Critical Access Hospitals3 of 5 stars
- Medical Group OF Indiana LLCMuncie, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Erin Elizabeth Diem among 5,867 family nurse practitioner records in Indiana
Erin Elizabeth Diem, FNP is one of 5,867 family nurse practitioner records with a practice address in Indiana. 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 2017, is newer than 39% of them.
- NPI issued2017 · 39% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2017 · median 2018 among the 3,953 with a school on file
- Record last updated2026 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 family nurse practitioner records list a practice address in Greensburg
They are 21 of the 231 NPPES records with a practice address in Greensburg, and 5,867 family nurse practitioner records in Indiana.
All 5,867 in Indiana → Every provider in Greensburg → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Caylen CableGreensburg, IN 472401881160794
- Jacqueline Gabbard, FNP-BCGreensburg, IN 472401033406616
- Lauren Gill, FNP-BCGreensburg, IN 472401942566021
- Brandi Hart, FNPGreensburg, IN 472401982188223
- Linzi Horine, NPGreensburg, IN 472401285128454
- Chassity Howard, FNPGreensburg, IN 472401104350958
- Lindsay Jobe, FNP-CGreensburg, IN 472401124567326
- Brandey Kendall, FNPGreensburg, IN 472401265833743
Common questions
What is Erin Elizabeth Diem, FNP's NPI number?
Erin Elizabeth Diem, FNP's National Provider Identifier (NPI) is 1588190755, issued on May 10, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Erin Elizabeth Diem, FNP located?
The NPPES record lists a practice address at 955 N Michigan Ave Ste 4, Greensburg, IN, 47240. Phone: (812) 662-6450. Providers update this record themselves, so call before visiting.
How can I verify Erin Elizabeth Diem, FNP's license?
NPPES lists Indiana license number 71007568A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Elizabeth Diem, FNP prescribe under Medicare Part D?
In 2024, Erin Elizabeth Diem, FNP had 190 Medicare Part D claims for 125 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Erin Elizabeth Diem, FNP's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.