Amy Heinz , PA-C
Physician Assistant • Mchenry, IL
Professional Overview & Biography Verified Profile Summary
Amy Heinz, PA-C is a certified Physician Assistant practicing in Mchenry, IL. With approximately 28 years of clinical experience since completing medical education in 1998, Amy Heinz delivers high-quality medical care to the local community at 4201 W MEDICAL CENTER DR.
Amy Heinz is affiliated with Northwestern Medical Faculty Foundation and accepts Medicare assignment.
Frequently performed procedures and clinical services include emergency department visit for life threatening or functioning severity, emergency department visit with moderate level of medical decision making, emergency department visit with low level of medical decision making. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
4201 W Medical Center Dr
Mchenry, IL 600508409
Medicare Profile & Education
Other
1998
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Physician Assistant in Mchenry, IL
Practicing in Mchenry, IL (4958 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99285
Emergency department visit for life threatening or functioning severity
|
104 | 103 | $539.00 | $146.92 |
|
99284
Emergency department visit with moderate level of medical decision making
|
75 | 75 | $365.00 | $101.60 |
Medical Specialties & State Licenses
CMS Verified: 2026-02-26NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Northwestern Medical Faculty Foundation
10400 Haligus Rd, Huntley, IL 601429553
Northwestern Medical Faculty Foundation
515 Valley View Dr, Moline, IL 612656175
Phone: 3126950870
Northwestern Medical Faculty Foundation
4309 W Medical Ctr Dr, Mchenry, IL 600508437
Phone: 8157598070
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Emergency Medicine
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Recorded as AMY HEINZ, PA-C
Physician Assistant (License #085-004651 in IL)
Physician Assistant (License #085-004651 in IL)
NPI status registered as active in NPPES database
Registered at 4201 W MEDICAL CENTER DR, MCHENRY, IL 600508409 (Tel: 8157593100)
Registered at 4201 W MEDICAL CENTER DR, MCHENRY, IL 600508409 (Tel: 8157593100)
Recorded as AMY UNDERWOOD, PA-C
Physician Assistant (License #085004651 in IL)
NPI status registered as active in NPPES database
Registered at 4201 W MEDICAL CENTER DR, MCHENRY, IL 600508409 (Tel: 8157593100)
Registered at 4201 W MEDICAL CENTER DR, MCHENRY, IL 600508409 (Tel: 8157593100)
Recorded as AMY UNDERWOOD, PA-C
Physician Assistant (License #085004651 in IL)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
4201 W Medical Center Dr
Mchenry, IL 600508409
Phone: 8157593100
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