NPPES file of Aug 9, 2026

Stephan M. Yost, PA-C

Medical Physician Assistant · Tahlequah, OK

Stephan M. Yost, PA-C is a medical physician assistant with a practice address in Tahlequah, Oklahoma, and NPI 1063497931, issued on Dec 13, 2005. Check the license 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063497931
Name
Stephan M. Yost
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License numbers
P-T0726 AR
2004003095 MO
Self-reported in NPPES; status is on the state search
Practice location
1400 E Downing St, Tahlequah, OK 74464
Phone
(918) 456-0641
Enumerated
Dec 13, 2005
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20041001000001); 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 1400 E Downing St

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

  1. Jason Ballew, MDAddiction Medicine (Preventive Medicine) Physician1235146036
  2. Faryal Bhatti, MBBSStudent in an Organized Health Care Education/Training Program1407642705
  3. Celeste Bidwell, APRNAcute Care Nurse Practitioner1184394751
  4. Pakeezah BisharatStudent in an Organized Health Care Education/Training Program1639924822
  5. Blair Brown, DOInternal Medicine Physician1407421027
  6. Stephen Burton, M.D.Neurology Physician1497735740

Verify Stephan M. Yost in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this professionCheck 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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54% fewer Medicare Part D claims than the average medical physician assistant in 2024

525 Medicare Part D claims for 256 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 11 claims were for opioids.

  1. Stephan Yost525
  2. Specialty average1,148

Most prescribed

  1. Prednisone76 claims
  2. Doxycycline Hyclate47 claims
  3. Albuterol Sulfate Hfa35 claims
  4. Amoxicillin-Clavulanate Potass29 claims
  5. Ciprofloxacin Hcl27 claims
  6. Levofloxacin26 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.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Ozarks Medical CenterWest Plains, MO

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

Stephan M. Yost among 513 medical physician assistant records in Oklahoma

Stephan M. Yost, PA-C is one of 513 medical physician assistant records with a practice address in Oklahoma. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2002 · median 2010 among the 284 with a school on file
  • Record last updated2018 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Oklahoma

There are 513 medical physician assistant records in Oklahoma.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Jessica Randolph, LPC, PATahlequah, OK 744641174842215
  2. Sean Scearce, PATahlequah, OK 744641194715730
  3. Philip Watson, PATahlequah, OK 744641730227299
  4. Heather Hasenmyer, PATaft, OK 744631558751628
  5. Gwendolyn Hendrix-Bush, PA-CStigler, OK 744621568437812
  6. Carrie Randall, P.A.-CStigler, OK 744621891980728
  7. Jalyssa ValenciaWagoner, OK 744671851068407
  8. Jackie Parnell, PACoweta, OK 744291639169337

Common questions

What is Stephan M. Yost, PA-C's NPI number?

Stephan M. Yost, PA-C's National Provider Identifier (NPI) is 1063497931, issued on Dec 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephan M. Yost, PA-C located?

The NPPES record lists a practice address at 1400 E Downing St, Tahlequah, OK, 74464. Phone: (918) 456-0641. Providers update this record themselves, so call before visiting.

How can I verify Stephan M. Yost, PA-C's license?

Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.

How much does Stephan M. Yost, PA-C prescribe under Medicare Part D?

In 2024, Stephan M. Yost, PA-C had 525 Medicare Part D claims for 256 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Stephan M. Yost, PA-C'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.