William Edward Greer IV, PA-C

  • Springfield, IL
  • Physician assistant
NPI1336397355PAC ID3678640992
MIPS score, 2024
89
Hospital affiliations
1
Industry payments
$21
Medical groups
3
State license
1
Practice address
701 N First St, Springfield, IL 62702
Practice phone
Call (217) 788-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Springfield Memorial Hospital

Hospital · Springfield, Illinois

See all 6 affiliations

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William Edward Greer IV is a physician assistant in Springfield, Illinois

William Greer practices at Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System.

William Greer's NPI, 1336397355, was assigned on September 3, 2008. William Greer graduated from Southern Illinois University School of Medicine in 2008. William Greer holds Illinois license 085003277.

NPI and contact details
Medicare PAC ID
3678640992
NPI enumeration date
September 3, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(217) 788-3000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

William Edward Greer IV practices at Springfield Memorial Hospital in Springfield, Illinois

William Greer's primary practice is Springfield Memorial Hospital, at 701 N First St, Springfield, IL 62702 in Sangamon County. The practice phone is (217) 788-3000.

Source: Dmand AI Affiliation Data

William Edward Greer IV is affiliated with 3 sites of care and 3 medical groups

William Greer's primary practice is Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System. The medical group on file is Springfield Clinic. Dmand AI also links William Greer to 2 more medical groups, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.

See all 6 affiliations for William Greer

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at William Edward Greer IV's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Greer practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Springfield Memorial HospitalAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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William Edward Greer IV is one of 4,299 physician assistants in Illinois

Physician assistant is William Greer's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William Greer is licensed in Illinois.

Specialties and state licenses

  • Physician assistant, IllinoisPrimaryLicense 085003277 · taxonomy 363A00000X

Physician assistants near William Greer

Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

William Edward Greer IV's patients have a median age of 62

Across all payers, Dmand AI patient panel data puts William Greer's median patient age at 62, with 49% women.

William Greer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women49%
  • Men51%

Source: Dmand AI Patient Panel Data

William Edward Greer IV scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for William Greer for performance year 2024, reported through an alternative payment model (APM). William Greer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists William Greer as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

William Greer's MIPS scores, performance year 2024

  • 89of 100Final score
  • 75.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

William Edward Greer IV received $21 in industry payments in 2025

CMS Open Payments shows 1 general payment to William Greer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $21.

Companies that paid William Greer the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to William Greer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

William Edward Greer IV graduated from Southern Illinois University School of Medicine

William Greer graduated from Southern Illinois University School of Medicine in 2008.

  1. Medical schoolSouthern Illinois University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for William Edward Greer IV's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about William Edward Greer IV

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is William Edward Greer IV's NPI number?

William Edward Greer IV's NPI number is 1336397355. It was assigned on September 3, 2008, and it is active in the NPI Registry.

What does William Edward Greer IV specialize in?

William Edward Greer IV is a physician assistant in Springfield, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does William Edward Greer IV practice?

William Greer practices at 701 N First St, Springfield, IL 62702. William Greer's primary practice is Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System. Dmand AI also links William Greer to 2 medical groups, 1 group practice or clinic and 1 ambulatory surgery center.

What is William Edward Greer IV's office phone number?

The practice phone on file for William Greer is (217) 788-3000.

What is William Edward Greer IV's medical license number?

William Greer holds Illinois license 085003277.

Which hospitals is William Edward Greer IV affiliated with?

William Greer practices at Springfield Memorial Hospital in Springfield, Illinois.

What medical group is William Edward Greer IV part of?

William Greer is linked to Springfield Clinic. Dmand AI links William Greer to 2 more medical groups.

Does William Edward Greer IV accept Medicare?

Yes. CMS lists William Greer as accepting Medicare assignment.

Does William Edward Greer IV offer telehealth?

Yes. The CMS Doctors and Clinicians file lists William Greer as offering telehealth services.

What is William Edward Greer IV's MIPS score?

William Greer's MIPS final score for performance year 2024 is 89 out of 100, reported through an alternative payment model (APM).

Show 3 more questionsShow fewer questions

Where did William Edward Greer IV go to medical school?

William Greer graduated from Southern Illinois University School of Medicine in 2008.

Has William Edward Greer IV received payments from drug or device companies?

CMS Open Payments shows $21 in general payments to William Greer from 1 company from 2025 to 2025. The largest total came from Stryker Corporation.

How long has William Edward Greer IV been practicing?

William Greer graduated from medical school in 2008, 18 years ago.

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