NPPES file of Aug 9, 2026

Timothy Unterreiner, DNP

Certified Registered Nurse Anesthetist · Montgomery, OH

Timothy Unterreiner, DNP is a certified registered nurse anesthetist with a practice address in Montgomery, Ohio, and NPI 1154214096, issued on May 30, 2025. Check the license (Ohio APRN.CRNA.0021331, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154214096
Name
Timothy Unterreiner
Credential
DNP
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
APRN.CRNA.0021331 OH
Self-reported in NPPES; status is on the state search
Practice location
10500 Montgomery RD, Montgomery, OH 45242
Phone
(513) 865-1111
Enumerated
May 30, 2025
Record last updated
May 30, 2025
Medicare enrollment
Enrolled (PECOS I20250627001243); 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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8 nearest certified registered nurse anesthetist records → All 3,606 in Ohio → Look up another NPI →

Also registered at 10500 Montgomery RD

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

  1. Christine Abner, APRNAcute Care Nurse Practitioner1255749081
  2. Amr Aboelnasr, MDHospitalist Physician1417534876
  3. Alizabeth AdamsPhysical Therapist1730870445
  4. Adwoa Addo Asiamah, CRNACertified Registered Nurse Anesthetist1154903607
  5. Patricia Albano-SeitzCritical Care Medicine Nurse Practitioner1699328294
  6. Mhd Kutaiba Albuni, MDHospitalist Physician1952089351

Verify Timothy Unterreiner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license APRN.CRNA.0021331    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 Ohio 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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Bills Medicare through one group practice

  1. Anesthesia Group Practice IncMontgomery, OH

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

Timothy Unterreiner among 3,606 certified registered nurse anesthetist records in Ohio

Timothy Unterreiner, DNP is one of 3,606 certified registered nurse anesthetist records with a practice address in Ohio. 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 2025, is newer than 96% of them.

  • NPI issued2025 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2025 · median 2014 among the 2,675 with a school on file
  • Record last updated2025 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 certified registered nurse anesthetist records list a practice address in Montgomery

They are 22 of the 457 NPPES records with a practice address in Montgomery, and 3,606 certified registered nurse anesthetist records in Ohio.

All 3,606 in Ohio → Every provider in Montgomery → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Patricia Bearden, RNCincinnati, OH 452421891793725
  2. Kathryn Binder, RNCincinnati, OH 452421326046392
  3. Mary Cleland, RNCincinnati, OH 452421295733590
  4. Susan Dolph, RNCincinnati, OH 452421316945397
  5. Dennis Edwards, RNCincinnati, OH 452421578561585
  6. Ricahrd Everett, RNCincinnati, OH 452421205837465
  7. Susan Horner, RNCincinnati, OH 452421932100450
  8. Jannette Johnson, RNCincinnati, OH 452421457359374

Common questions

What is Timothy Unterreiner, DNP's NPI number?

Timothy Unterreiner, DNP's National Provider Identifier (NPI) is 1154214096, issued on May 30, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Unterreiner, DNP located?

The NPPES record lists a practice address at 10500 Montgomery RD, Montgomery, OH, 45242. Phone: (513) 865-1111. Providers update this record themselves, so call before visiting.

How can I verify Timothy Unterreiner, DNP's license?

NPPES lists Ohio license number APRN.CRNA.0021331, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.