NPPES file of Aug 9, 2026

Hallie J. Clark, NP

Nurse Practitioner · Oakland City, IN

Hallie J. Clark, NP is a nurse practitioner with a practice address in Oakland City, Indiana, and NPI 1326638537, issued on Jan 21, 2021. Check the license (Indiana 71010836A, as entered in NPPES) with the Indiana board that licenses this profession; 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
1326638537
Name
Hallie J. Clark
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
71010836A IN
28198172A IN
Self-reported in NPPES; status is on the state search
Practice location
1204 Williams St, Oakland City, IN 47660
Phone
(812) 749-6187
Enumerated
Jan 21, 2021
Record last updated
Feb 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(812) 749-4966
Medicare enrollment
Enrolled (PECOS I20210225001333); 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 1204 Williams St

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

  1. Steven Etherton, DOFamily Medicine Physician1407951734
  2. Terry Gehlhausen, D.O.Family Medicine Physician1861479743
  3. Holly Heichelbech, D.O.Family Medicine Physician1538204367
  4. Celena McCandless, PAPhysician Assistant1194146787

Verify Hallie J. Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 71010836A
    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
Find the Indiana 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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15% more Medicare Part D claims than the average nurse practitioner in 2024

1,270 Medicare Part D claims for 260 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 64 claims were for opioids.

  1. Hallie Clark1,270
  2. Specialty average1,109

Most prescribed

  1. Hydrocodone-Acetaminophen53 claims
  2. Amlodipine Besylate35 claims
  3. Levothyroxine Sodium33 claims
  4. Buspirone Hcl32 claims
  5. Cephalexin32 claims
  6. Doxycycline Monohydrate32 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. Deaconess Clinic IncEvansville, IN

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

Hallie J. Clark among 2,582 nurse practitioner records in Indiana

Hallie J. Clark, NP is one of 2,582 nurse practitioner records with a practice address in Indiana. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 71% of them.

  • NPI issued2021 · 71% of these records are older, 22% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2020 · median 2018 among the 1,710 with a school on file
  • Record last updated2021 · 35% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 nurse practitioner records list a practice address in Oakland City

They are 2 of the 20 NPPES records with a practice address in Oakland City, and 2,582 nurse practitioner records in Indiana.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Cassandra Vanmeter, FNP-COakland City, IN 476601770218299
  2. Deidre Hill, FNPOwensville, IN 476651265866123
  3. Jamie Bartlett, MSN, APRN, FNP, CCRNPrinceton, IN 476701467856773
  4. Jayde BrownPrinceton, IN 476701972464071
  5. Mellisa Hall, N.P.Princeton, IN 476701831191030
  6. Kara Holscher, NPPrinceton, IN 476701437635299
  7. Tonya Krieg, NPPrinceton, IN 476701598350910
  8. Angela Olson, NPPrinceton, IN 476701427545086

Common questions

What is Hallie J. Clark, NP's NPI number?

Hallie J. Clark, NP's National Provider Identifier (NPI) is 1326638537, issued on Jan 21, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Hallie J. Clark, NP located?

The NPPES record lists a practice address at 1204 Williams St, Oakland City, IN, 47660. Phone: (812) 749-6187. Providers update this record themselves, so call before visiting.

How can I verify Hallie J. Clark, NP's license?

NPPES lists Indiana license number 71010836A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does Hallie J. Clark, NP prescribe under Medicare Part D?

In 2024, Hallie J. Clark, NP had 1,270 Medicare Part D claims for 260 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.