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

Dr. Theodore Joseph Demetriou II, DO

Individual provider Hospitalist Physician · NPI 1417186057

Dr. Theodore Joseph Demetriou II, DO is registered under Family Practice in Reading, Pennsylvania. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2009, 17 years ago. Practices with St Joseph Regional Health Network, a 32-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
17
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
PA
In the registry since
2009
Specialties on file
2
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

145 N 6th St Fl 2
Reading, PA 19601-3096
Phone: (610) 208-4558
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 503 N 21st St, Camp Hill, PA 17011-2204 — (717) 972-4448
  • 500 University Dr, Hershey, PA 17033-2360 — (717) 531-5160

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence OS018434 (PA)
Hospitalist Physician Taxonomy 208M00000X · Licence OS018434 (PA)

Record details

NPI number1417186057
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 3, 2009
Last updated in NPPESSeptember 15, 2023
Certification dateSeptember 15, 2023

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2009 (17 years in practice)
Group practice St Joseph Regional Health Network — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients26
Services billed 32 a service is one billed item, such as a visit, a test or a procedure
Average patient age62

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.

Colleagues at St Joseph Regional Health Network

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 32 clinicians in the practice; 12 are shown here.

Other providers in Reading