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SSM HEALTH MEDICAL GROUP
NPI 1831101807
Internal Medicine in Mount Vernon, IL

Active since August 11, 2006CLIA 14D0987184 · Waiver
4218 LINCOLNSHIRE DR, MOUNT VERNON, IL 62864(618) 899-3600 Get Directions Write a Review

NPPES record last updated: August 25, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ssm Health Medical Group NPPES

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

SSM HEALTH MEDICAL GROUP (NPI 1831101807) is a healthcare organization registered as an internal medicine in Mount Vernon, Illinois and active in the NPI registry since August 2006. The organization holds a CLIA Waiver certificate valid through May 29, 2027 and lists Deland Evischi, Vp Finance Smgsmg, as its authorized official.

NPPES Registry Identity

NPI1831101807
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NamePHYSICIAN SERVICES CORPORATION OF SOUTHERN ILLINOIS INC.
Location Address4218 LINCOLNSHIRE DRMount Vernon, IL 62864-2156
Mailing Address4218 Lincolnshire DrMount Vernon, IL 62864-2156 · (618) 899-3600
Phone(618) 899-3600
Organization SubpartNo
Authorized OfficialDeland EvischiVp Finance Smgsmg · (618) 899-1040
Enumeration DateAugust 11, 2006
Last NPPES UpdateAugust 25, 2015
✔ NPI 1831101807 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 9

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedObstetrics & GynecologyTaxonomy 207V00000X
Also ListedOtolaryngologyTaxonomy 207Y00000X
Also ListedPediatricsTaxonomy 208000000X
Also ListedSurgeryTaxonomy 208600000X
Also ListedThoracic Surgery (Cardiothoracic Vascular Surgery)Taxonomy 208G00000X
Also ListedClinic/Center · Rural HealthTaxonomy 261QR1300X
Also ListedPhysician AssistantTaxonomy 363A00000X
4218 LINCOLNSHIRE DR, Mount Vernon, IL 62864
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Other Names 1

Doing Business AsSsm Health Medical Group

Other Identifiers 4

Medicare OSCAR/certification783803IL
Medicaid=========001IL
Medicare OSCAR/certification207988IL
Medicare OSCAR/certification208959IL

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ssm Health Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by October 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateIllinoisEnrollment IDO20080927000264Part A · Rural Health ClinicDue dateOctober 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

296

Medicare enrollment records show 296 clinicians reassign Medicare billing to Ssm Health Medical Group, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 46 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 32

Nurse Practitioner91
General Surgery24
Psychiatry18
Interventional Cardiology17
Internal Medicine15
Obstetrics/Gynecology12
Pulmonary Disease12
Cardiovascular Disease (Cardiology)9
24 other specialties98

Nearest to this location (20)

See all 296
Kevin Claffey, M.D.
General Surgery
NPI 1144226085
4218 LINCOLNSHIRE DR
Mount Vernon, IL 62864
(618) 242-8480
✔ PECOS✔ Accepts MedicareSame address
Alan Harad, M.D.
General Surgery
NPI 1679579510
4218 LINCOLNSHIRE DR
Mount Vernon, IL 62864
(618) 242-8480
✔ PECOSSame address
Naresh Ahuja, MD
General Surgery
NPI 1013174598
4230 LINCOLNSHIRE DR STE A
Mount Vernon, IL 62864
(618) 315-6466
✔ PECOS✔ Accepts MedicareSame address
Ashley Hofer, NP
Nurse Practitioner
NPI 1316419252
209 CROSSROADS PL STE 120
Mount Vernon, IL 62864
(618) 244-6222
✔ PECOS✔ Accepts Medicare0.5 mi
Kelli Mowrer, CNP
Nurse Practitioner
NPI 1417468190
8 CUSUMANO PROFESSIONAL PLAZA DR
Mount Vernon, IL 62864
(618) 244-4800
✔ PECOS✔ Accepts Medicare0.7 mi
Veena Gupta, M.D.
Family Practice
NPI 1790713899
3307 BROADWAY ST STE 140
Mount Vernon, IL 62864
(618) 244-7200
✔ PECOS0.7 mi
Bhargava Nelluri
Internal Medicine
NPI 1164047726
4103 S WATER TOWER PL
Mount Vernon, IL 62864
(618) 899-3500
✔ PECOS✔ Accepts Medicare0.8 mi
Abdulmonam Ali, M.D.
Pulmonary Disease
NPI 1396026506
4106 S WATER TOWER PL
Mount Vernon, IL 62864
(618) 242-8900
✔ PECOS✔ Accepts Medicare0.8 mi
Nicole Lewis, DNP, FNP-BC
Nurse Practitioner
NPI 1982123899
602 S 42ND ST
Mount Vernon, IL 62864
(618) 899-3278
✔ PECOS✔ Accepts Medicare0.8 mi
Kerry Pitchford, APRN, FNP-BC
Nurse Practitioner
NPI 1205455763
602 S 42ND ST
Mount Vernon, IL 62864
(618) 899-3278
✔ PECOS✔ Accepts Medicare0.8 mi
Ashley Daniels, FNP
Nurse Practitioner
NPI 1386191393
602 S 42ND ST
Mount Vernon, IL 62864
(618) 899-3777
✔ PECOS✔ Accepts Medicare0.9 mi
Sudeep Nair, MD
Internal Medicine
NPI 1376582999
602 S 42ND ST SUITE B
Mount Vernon, IL 62864
(618) 899-3777
✔ PECOS✔ Accepts Medicare0.9 mi
Sierra Hiestand
Nurse Practitioner
NPI 1689569246
4103 S WATER TOWER PL
Mount Vernon, IL 62864
(618) 899-3500
✔ PECOS✔ Accepts Medicare1.0 mi
Scherrie Mclaskey, FNP-C
Nurse Practitioner
NPI 1417573734
4119 S WATER TOWER PL STE A
Mount Vernon, IL 62864
(618) 816-6006
✔ PECOS✔ Accepts Medicare1.0 mi
Shelby Guthrie, FNP
Nurse Practitioner
NPI 1679278352
1007 S 42ND ST
Mount Vernon, IL 62864
(618) 242-4626
✔ PECOS✔ Accepts Medicare1.2 mi
Graeme Fisher, M.D.
Radiation Oncology
NPI 1659362929
4117 VETERANS MEMORIAL DRIVE
Mount Vernon, IL 62864
(618) 241-7016
✔ PECOS✔ Accepts Medicare1.4 mi
Daniel Hoffman, MD
Internal Medicine
NPI 1134147432
2 GOOD SAMARITAN WAY SUITE 420
Mount Vernon, IL 62864
(618) 899-4000
✔ PECOS1.5 mi
Emmanuel Loutrianakis, MD
Cardiovascular Disease (Cardiology)
NPI 1013974187
1 GOOD SAMARITAN WAY
Mount Vernon, IL 62864
(847) 736-0506
✔ PECOS✔ Accepts Medicare1.5 mi
Emily Boyd, M.D.
Obstetrics/Gynecology
NPI 1730257924
3130 VETERANS MEMORIAL DR
Mount Vernon, IL 62864
(618) 997-5266
✔ PECOS✔ Accepts Medicare2.0 mi
Danilo Martins, M.D.
General Surgery
NPI 1881031144
5 GOOD SAMARITAN WAY STE 235
Mount Vernon, IL 62864
(618) 899-3980
✔ PECOS✔ Accepts Medicare3.3 mi
See all 296 clinicians

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D0987184

Ssm Health Medical Group Mt Vernon Primary Care · Mount Vernon, IL
Active · expires May 29, 2027
CLIA Number14D0987184
Laboratory TypePhysician Office
Certificate Effective DateMay 30, 2025
Certificate Expiration DateMay 29, 2027
Laboratory DirectorNelson K. Wong
Laboratory Phone(618) 899-3500
Laboratory LocationSsm Health Medical Group Mt Vernon Primary Care4103 S Water Tower Place, Mount Vernon, IL 62864
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Inpatient Rehabilitation Quality CMS Care Compare

Quality measures, patient outcomes and conditions treated for Ssm Health Good Samaritan Hosp (CMS certification number 14T046), from CMS Care Compare.

Ssm Health Good Samaritan Hosp

Inpatient rehabilitation facility · Mount Vernon, IL
OwnershipNon-profit
CMS Certification Number14T046
Medicare-Certified SinceJanuary 1, 1990
Location1 Good Samaritan WayMount Vernon, IL 62864
Phone(618) 899-3197
Rehabilitation unit within a hospital

Conditions Treated

Medicare patient stays by the condition that brought the patient to rehabilitation
Stroke
51
patient stays
Hip or femur fracture
22
patient stays
Hip or knee replacement, amputation or other bone or joint condition
18
patient stays
Brain disease or condition (non-traumatic)
11
patient stays
Brain injury (traumatic)
Less than 11 patient stays
Nervous system disorder (excluding stroke)
Less than 11 patient stays
Spinal cord disease or condition (non-traumatic)
Less than 11 patient stays
All other conditions
33
patient stays
Counts reflect Medicare patient stays reported to CMS. CMS reports counts under 11 as "Less than 11" to protect patient privacy.

Quality Measures

Medications reviewed, with follow-up when issues were found
Drug Regimen Review · 149 patient stays
96.6%
Patients given a current list of their medications at discharge
Transfer of Health Information to the Patient · 108 patient stays
77.8%
Medication list sent to the next provider at discharge
Transfer of Health Information to the Provider · 41 patient stays
100%
Patients who meet or exceed the self-care ability expected for their condition at discharge
Discharge Self-Care Score · 130 patient stays
37.7%
Patients who meet or exceed the mobility expected for their condition at discharge
Discharge Mobility Score · 130 patient stays
40%
Patients who meet or exceed the overall function expected at discharge
Discharge Function Score · 130 patient stays
40.77%
Patients who experienced one or more falls with major injury during their stay
149 patient stays · Lower rates are better for this measure.
0%
Patients with pressure ulcers or injuries that are new or worsened
Risk-adjusted rate · 149 patient stays · observed rate 0.7% · Lower rates are better for this measure.
0.8%
Healthcare workers given the influenza vaccine
13 healthcare workers
92.3%
Healthcare workers up to date on COVID-19 vaccination
3 healthcare workers
0%
Clostridioides difficile (C. diff) infections
0 observed infections · 1.009 predicted · 2,307 patient days
0.000
standardized infection ratio
No Different than the National Benchmark
Measures are reported under the CMS Inpatient Rehabilitation Facility Quality Reporting Program. Reporting periods vary by measure (October 2021 to December 2023). Measures without current CMS data are not shown.

Discharge, Readmission & Medicare Spending

Patients discharged to home or the community
105 of 174 patient stays · observed rate 60.34%
63.53%
risk-standardized rate
No Different than the National Rate
Potentially preventable readmissions within 30 days after discharge
16 readmissions of 158 patient stays · observed rate 10.13% · Lower rates are better for this measure.
9.24%
risk-standardized rate
No Different than the National Rate
Potentially preventable readmissions during the rehabilitation stay
17 readmissions of 186 patient stays · observed rate 9.14% · Lower rates are better for this measure.
6.46%
risk-standardized rate
No Different than the National Rate
Medicare spending per episode of care
1.00 = national average per episode of care · based on 156 episodes
0.99
spending ratio
Risk-standardized rates account for differences in patient condition mix. Comparison labels are assigned by CMS.

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 Physician Services Corporation Of Southern Illinois Inc.'s NPI number?

The NPI number for Physician Services Corporation Of Southern Illinois Inc. is 1831101807. It was assigned to this organization in the NPPES registry on August 11, 2006. The provider is doing business as Ssm Health Medical Group.

Where is Physician Services Corporation Of Southern Illinois Inc. located?

Physician Services Corporation Of Southern Illinois Inc. is located at 4218 Lincolnshire Dr, Mount Vernon, IL 62864. The listed phone number is (618) 899-3600.

What is Physician Services Corporation Of Southern Illinois Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Physician Services Corporation Of Southern Illinois Inc. enrolled in Medicare?

Yes. Physician Services Corporation Of Southern Illinois Inc. is registered in the Medicare PECOS enrollment system.

When is Physician Services Corporation Of Southern Illinois Inc.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Part A enrollment for this organization (Illinois, Rural Health Clinic) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Physician Services Corporation Of Southern Illinois Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 296 clinicians in 32 Medicare specialties reassign their Medicare billing to Physician Services Corporation Of Southern Illinois Inc.. A 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 the clinician's services. The largest specialties are Nurse Practitioner (91), General Surgery (24) and Psychiatry (18). Of these, 2 practice at this address and 46 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Physician Services Corporation Of Southern Illinois Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D0987184) is associated with this NPI, valid through May 29, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

Is Physician Services Corporation Of Southern Illinois Inc. a Medicare-certified inpatient rehabilitation facility?

Yes. Ssm Health Good Samaritan Hosp is a Medicare-certified inpatient rehabilitation facility (CMS certification number 14T046), certified since January 1, 1990.

What insurance does Physician Services Corporation Of Southern Illinois Inc. accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Physician Services Corporation Of Southern Illinois Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Physician Services Corporation Of Southern Illinois Inc. was last updated on August 25, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.