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ZACHARY D RYNERSON M.D
NPI 1326488685
Emergency Medicine in Greenville, IL

Active since July 01, 2013PECOS Enrolled
89.55/100
CMS Quality Rating
200 HEALTH CARE DR, GREENVILLE, IL 62246(618) 664-1230 Get Directions Write a Review

NPPES record last updated: May 10, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 10, 2019, Apr 24, 2018 (2 updates tracked since 2018).

About Zachary D Rynerson M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ZACHARY D RYNERSON M.D (NPI 1326488685) is an individual emergency medicine provider in Greenville, Illinois, licensed in Illinois (036.140646) and active in the NPI registry since July 2013. He is enrolled in Medicare PECOS and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1326488685
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameZACHARY D RYNERSONCredential: M.D
Location Address200 HEALTH CARE DRGreenville, IL 62246-1154
Mailing Address3635 Vista Ave, Saint Louis University Hospital E.m AdministrationSaint Louis, MO 63110-2539 · (314) 577-8780
Phone(618) 664-1230
Sole ProprietorNo
Enumeration DateJuly 1, 2013
Last NPPES UpdateMay 10, 20192 updates tracked since enumeration
✔ NPI 1326488685 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in IL · 036.140646✔ Licensed in MO · 2013022122
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
200 HEALTH CARE DR, Greenville, IL 62246
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Secondary Practice Location 1

Location 13635 Vista Ave, Saint Louis University Hospital E.M administrationSaint Louis, MO 63110 · Phone (314) 577-8780

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Zachary D Rynerson M.d is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Zachary Rynerson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cepamerica Illinois LLP
Same address
Emergency Medicine
200 HEALTH CARE DR
Greenville, IL 62246
  • Reassigned Medicare billing, Illinois enrollment
  • 982 clinicians in this Medicare group
NPI 1225537137 (618) 664-1230
Vituity - Illinois Auc LLP
17 mi
Emergency Medicine
12866 TROXLER AVE
Highland, IL 62249
  • Reassigned Medicare billing, Illinois enrollment
  • 119 clinicians in this Medicare group
NPI 1902394786 (618) 651-2727
Cep America LLC
47 mi
Emergency Medicine
1320 N JEFFERSON AVE
Saint Louis, MO 63106
  • Reassigned Medicare billing, Missouri enrollment
  • 269 clinicians in this Medicare group
NPI 1699461673 (510) 350-2600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
438 services411 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
36 services35 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
31 services30 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62246 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.44 typical visit price
range $56.28 – $173.35
Typical copayment $22.11 (range $14.07 – $43.33)
Most-billed visit code 99203
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.55/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.45
Improvement Activities40
Cost100

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTOPHER ENGELE
Nurse Practitioner (Family)
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
DR. DELWIN MERCHANT MD
Emergency Medicine
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
CEP AMERICA-ILLINOIS HOSPITALISTS, LLP
Hospitalist
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
DR. ADAM EARL STENGER M.D.
Emergency Medicine
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
MR. STEVEN DEAN DONNAN CRNA
Nurse Anesthetist, Certified Registered
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
CHARLES E AUER MD
Emergency Medicine
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
HOLLY EARLEY
Social Worker (Clinical)
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230
MICHAEL HARRIS MD
Internal Medicine
200 HEALTH CARE DR
GREENVILLE, IL 62246
Bond County (618) 664-1230

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Zachary Rynerson's NPI number?

The NPI number for Zachary Rynerson is 1326488685. It was assigned to this individual provider in the NPPES registry on July 1, 2013.

Where is Zachary Rynerson located?

Zachary Rynerson practices at 200 Health Care Dr, Greenville, IL 62246. The listed phone number is (618) 664-1230.

What is Zachary Rynerson's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Zachary Rynerson enrolled in Medicare?

Yes. Zachary Rynerson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Zachary Rynerson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Rynerson reassigns Medicare benefits to 3 organizations: Cepamerica Illinois LLP (Greenville, IL), Vituity - Illinois Auc LLP (Highland, IL) and Cep America LLC (Saint Louis, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Zachary Rynerson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Zachary Rynerson was last updated on May 10, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.