NPPES file of Aug 9, 2026

Kristine Grunewald Siegenthaler, OTRL/CHT/CLT

Hand Occupational Therapist · Okmulgee, OK

Kristine Grunewald Siegenthaler, OTRL/CHT/CLT is a hand occupational therapist with a practice address in Okmulgee, Oklahoma, and NPI 1992771703, issued on Feb 23, 2006. Check the license (Oklahoma OT 735, as entered in NPPES) with the Oklahoma 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
1992771703
Name
Kristine Grunewald Siegenthaler
Credential
OTRL/CHT/CLT
Primary taxonomy
Hand Occupational Therapist 225XH1200X
License number
OT 735 OK
Self-reported in NPPES; status is on the state search
Practice location
114 W 7TH St, Okmulgee, OK 74447
Phone
(918) 756-3330
Enumerated
Feb 23, 2006
Record last updated
Oct 29, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(918) 756-3332
Medicaid ID
100645450B OK
Medicare enrollment
Enrolled (PECOS I20061005000174); 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 114 W 7TH St

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

  1. Gabrielle Tucker, PTAPhysical Therapy Assistant1609442508

Verify Kristine Grunewald Siegenthaler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license OT 735
    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 Oklahoma 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. Impact Rehab ConsultantsOkmulgee, OK

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

Kristine Grunewald Siegenthaler among 28 hand occupational therapist records in Oklahoma

Kristine Grunewald Siegenthaler, OTRL/CHT/CLT is one of 28 hand occupational therapist records with a practice address in Oklahoma. 21% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 50% newer
  • In a Medicare fileYes · 21% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Record last updated2018 · 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 225XH1200X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hand Occupational Therapist providers in Oklahoma

There are 28 hand occupational therapist records in Oklahoma.

The 8 hand occupational therapist records with the nearest ZIP codes

  1. Molly Cook, OTTulsa, OK 741461861759938
  2. Andrew Bussman, OTTulsa, OK 741371831456771
  3. Michael Hopkins, MOT, OTR, CHTTulsa, OK 741371801901756
  4. Alecia Vaughn, OTRTulsa, OK 741371457861346
  5. Melanie Trook, OTRL, CHTTulsa, OK 741361083773980
  6. Suzanne Marolf, OTR/L CHTTulsa, OK 741351386644805
  7. Jean Pryor, OTTulsa, OK 741351588773329
  8. Larry Johnson, O.T.,C.H.TTulsa, OK 741331093860967

Common questions

What is Kristine Grunewald Siegenthaler, OTRL/CHT/CLT's NPI number?

Kristine Grunewald Siegenthaler, OTRL/CHT/CLT's National Provider Identifier (NPI) is 1992771703, issued on Feb 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kristine Grunewald Siegenthaler, OTRL/CHT/CLT located?

The NPPES record lists a practice address at 114 W 7TH St, Okmulgee, OK, 74447. Phone: (918) 756-3330. Providers update this record themselves, so call before visiting.

How can I verify Kristine Grunewald Siegenthaler, OTRL/CHT/CLT's license?

NPPES lists Oklahoma license number OT 735, as entered by the provider. Search the Oklahoma 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.

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.