NPPES file of Aug 9, 2026

Grady Earl Thiems

Emergency Medicine Physician · Merriam, KS

Grady Earl Thiems is an emergency medicine physician with a practice address in Merriam, Kansas, and NPI 1245506229, issued on Mar 23, 2012. Check the license (Kansas 04-37894, as entered in NPPES) on the Kansas State Board of Healing Arts; 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
1245506229
Name
Grady Earl Thiems
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
04-37894 KS
2014004835 MO
Self-reported in NPPES; status is on the state search
Practice location
9100 W 74TH St, Merriam, KS 66204
Phone
(913) 676-2214
Enumerated
Mar 23, 2012
Record last updated
May 16, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150729007767); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 2012
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 9100 W 74TH St

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

  1. Wilberforce AfuyaFamily Nurse Practitioner1518673367
  2. Seth AtchisonEmergency Medicine Physician1407397615
  3. Oluwatise Babatope-OjoBehavior Technician1740129782
  4. Kerry Beck, RNRegistered Nurse1194656900
  5. Blair BeltzEmergency Registered Nurse1982590980
  6. Corina BissonnetteBehavior Technician1922968312

Verify Grady Earl Thiems in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 04-37894
    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
Open the Kansas 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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74% more Medicare Part D claims than the average emergency medicine physician in 2024

393 Medicare Part D claims for 269 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 91 claims were for opioids.

  1. Grady Thiems393
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen64 claims
  2. Ondansetron Hcl44 claims
  3. Cephalexin34 claims
  4. Oxycodone Hcl26 claims
  5. Prednisone21 claims
  6. Amoxicillin-Clavulanate Potass17 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 2 group practices

  1. EM Specialists PAShawnee Mission, KS
  2. ER Physicians South, P.A.Ottawa, KS

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

Grady Earl Thiems among 459 emergency medicine physician records in Kansas

Grady Earl Thiems is one of 459 emergency medicine physician records with a practice address in Kansas. 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 2012, is newer than 57% of them.

  • NPI issued2012 · 57% of these records are older, 41% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2012 · median 2011 among the 270 with a school on file
  • Record last updated2018 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 emergency medicine physician records list a practice address in Merriam

They are 10 of the 547 NPPES records with a practice address in Merriam, and 459 emergency medicine physician records in Kansas.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Darren BoyackShawnee Mission, KS 662041750374724
  2. John Bradley, DOShawnee Mission, KS 662041801018536
  3. Beau ButherusMerriam, KS 662041467751032
  4. Sara CrossShawnee Mission, KS 662041821148123
  5. Megan DespainShawnee Mission, KS 662041831126358
  6. David Finkle, M.D.Merriam, KS 662041336362953
  7. Dustin Keffer, DOShawnee Mission, KS 662041992062129
  8. Rebecca MesserliMerriam, KS 662041073672499

Common questions

What is Grady Earl Thiems's NPI number?

Grady Earl Thiems's National Provider Identifier (NPI) is 1245506229, issued on Mar 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Grady Earl Thiems located?

The NPPES record lists a practice address at 9100 W 74TH St, Merriam, KS, 66204. Phone: (913) 676-2214. Providers update this record themselves, so call before visiting.

How can I verify Grady Earl Thiems's license?

NPPES lists Kansas license number 04-37894, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Grady Earl Thiems prescribe under Medicare Part D?

In 2024, Grady Earl Thiems had 393 Medicare Part D claims for 269 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.