Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Patrick Masching, MD

Individual provider Emergency Medicine Physician · NPI 1861475261

Patrick Masching, MD practises Emergency Medicine in Jerseyville, Illinois. Qualified in 1993, 33 years ago. Practices with Alton-Griffin Emergency Group PC, a 15-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Tennessee.

Years since qualifying
33
Licensed in
IL, TN
In the registry since
2005
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

400 Maple Summit Rd
Jerseyville, IL 62052-2028
Phone: (618) 498-6402
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 421 S Main St, Crossville, TN 38555-5031 — (931) 210-5211

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036-092388 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 62866 (TN)
Family Medicine Physician Taxonomy 207Q00000X · Licence 036092388 (IL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 62866 (TN)

Record details

NPI number1861475261
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 21, 2005
Last updated in NPPESJanuary 23, 2025
Certification dateJanuary 23, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Alton-Griffin Emergency Group Pc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients709
Services billed 832 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Alton-Griffin Emergency Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 15 clinicians in the practice; 12 are shown here.

Other providers in Jerseyville