Jeffery O. Armstrong, PA C
Physician Assistant · Washington, MO
Jeffery O. Armstrong, PA C is a physician assistant with a practice address in Washington, Missouri, and NPI 1972597136, issued on Sep 2, 2005. Check the license (Missouri 2013028988, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jeffery O. Armstrong
- Credential
- PA C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 2013028988 MO
003793 GA
Self-reported in NPPES; status is on the state search - Practice location
- 901 Patients First Dr, Washington, MO 63090
- Phone
- (636) 390-1595
- Enumerated
- Sep 2, 2005
- Record last updated
- May 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (636) 390-1596
- Medicaid ID
- 100001710D GA
- Medicare enrollment
- Enrolled (PECOS I20131007001467); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →
Also registered at 901 Patients First Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bryce Ayers, M.D.Internal Medicine Physician1689610446
- Tamara Bailey, FNP-CFamily Nurse Practitioner1184122327
- Kelly Bain, M.D.Family Medicine Physician1982645818
- Dilip Banerjee, M.D.Cardiovascular Disease Physician1902828742
- Kristy Bestgen, MSN, APRN, FNP-CFamily Nurse Practitioner1326487315
- Carl Blatt, M.D.Gastroenterology Physician1447292123
Verify Jeffery O. Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2013028988Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average physician assistant in 2024
1,176 Medicare Part D claims for 424 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Triamcinolone Acetonide181 claims
- Clobetasol Propionate156 claims
- Mometasone Furoate121 claims
- Doxycycline Hyclate83 claims
- Ketoconazole70 claims
- Clindamycin Phosphate67 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.
Industry payments in 2024: $1,289.94
66 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ozarks Dermatology Specialists LLCSpringfield, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffery O. Armstrong among 1,790 physician assistant records in Missouri
Jeffery O. Armstrong, PA C is one of 1,790 physician assistant records with a practice address in Missouri. 81% 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, 98% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2000 · median 2019 among the 1,250 with a school on file
- Record last updated2014 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 physician assistant records list a practice address in Washington
They are 10 of the 533 NPPES records with a practice address in Washington, and 1,790 physician assistant records in Missouri.
All 1,790 in Missouri → Every provider in Washington → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Emily Beckerman, PA-SWashington, MO 630901750997268
- Tara Benes, PAWashington, MO 630901639827421
- Olivia Erway, PA-CWashington, MO 630901598615049
- Ashley Gawlik, PAWashington, MO 630901518775964
- Alexandra Gueck, PAWashington, MO 630901679394530
- Patrick Houlihan, PA-CWashington, MO 630901104142827
- Mitchel Kohnen, PA-CWashington, MO 630901427418417
- Emily Monzyk, PAWashington, MO 630901326709619
Common questions
What is Jeffery O. Armstrong, PA C's NPI number?
Jeffery O. Armstrong, PA C's National Provider Identifier (NPI) is 1972597136, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffery O. Armstrong, PA C located?
The NPPES record lists a practice address at 901 Patients First Dr, Washington, MO, 63090. Phone: (636) 390-1595. Providers update this record themselves, so call before visiting.
How can I verify Jeffery O. Armstrong, PA C's license?
NPPES lists Missouri license number 2013028988, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Jeffery O. Armstrong, PA C prescribe under Medicare Part D?
In 2024, Jeffery O. Armstrong, PA C had 1,176 Medicare Part D claims for 424 beneficiaries; the average among physician assistant prescribers was 830. 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.