Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark Stephen Dolz, DO

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1104833631

Dr. Mark Stephen Dolz, DO is a Pathology in Jacksonville, Illinois. Qualified in 1994, 32 years ago. Practices with Valley Pathology, PA, a 5-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
32
Licensed in
IL
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1600 W Walnut Passavant Area Hospital - Laboratory
Jacksonville, IL 62650
Phone: (217) 245-9541
Fax: (217) 479-5648
Show map & directions

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

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 036094413 (IL)

Record details

NPI number1104833631
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESJune 6, 2025
Certification dateMay 20, 2025
Mailing address7433 N 5th St, McAllen, IL 68504

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Valley Pathology, P.A. — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount