William Edward Greer, PA-C
Physician Assistant · Springfield, IL
William Edward Greer, PA-C is a physician assistant with a practice address in Springfield, Illinois, and NPI 1336397355, issued on Sep 3, 2008. Check the license (Illinois 085003277, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Edward Greer
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085003277 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1025 S 6TH St, Springfield, IL 62703
- Phone
- (217) 528-7541
- Enumerated
- Sep 3, 2008
- Record last updated
- Mar 3, 2026
- Fax
- (217) 525-7616
- Medicare enrollment
- Enrolled (PECOS I20080927000258); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 1025 S 6TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arun Abraham, MDFamily Medicine Physician1508020546
- Philip Abraham, M.D.Pulmonary Disease Physician1548375629
- Jeffrey Adkins, CRNACertified Registered Nurse Anesthetist1992793954
- Deborah Albright, M.D.Internal Medicine Physician1639145360
- Stanley Allen, M.D.Internal Medicine Physician1285631127
- Jessica Alwerdt, PHYSICIAN ASSISTANTPhysician Assistant1669706057
Verify William Edward Greer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085003277Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Springfield Clinic, LLPSpringfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Edward Greer among 4,926 physician assistant records in Illinois
William Edward Greer, PA-C is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 17% of them.
- NPI issued2008 · 17% of these records are older, 81% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2008 · median 2019 among the 3,407 with a school on file
- Record last updated2026 · 35% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
103 physician assistant records list a practice address in Springfield
They are 103 of the 4,997 NPPES records with a practice address in Springfield, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Springfield → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jessica Alwerdt, PHYSICIAN ASSISTANTSpringfield, IL 627031669706057
- Brooke Bell, PASpringfield, IL 627031265788632
- Billie Buhnerkempe, MS, PA-CSpringfield, IL 627031720318538
- Tyson Corbin, PASpringfield, IL 627031336407378
- Andrew Guardia, PASpringfield, IL 627031598950883
- Maurya Hofner, P.A.-C.Springfield, IL 627031386735074
- Colleen Langer, P.A.-C.Springfield, IL 627031477642353
- Amanda Mabus, P.A.Springfield, IL 627031609181056
Common questions
What is William Edward Greer, PA-C's NPI number?
William Edward Greer, PA-C's National Provider Identifier (NPI) is 1336397355, issued on Sep 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is William Edward Greer, PA-C located?
The NPPES record lists a practice address at 1025 S 6TH St, Springfield, IL, 62703. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.
How can I verify William Edward Greer, PA-C's license?
NPPES lists Illinois license number 085003277, as entered by the provider. Search the Illinois 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.