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

William M Jantsch, MD

Individual provider Emergency Medicine Physician · NPI 1245382241

William M Jantsch, MD practises Emergency Medicine in Philadelphia, Pennsylvania. Graduated from University of Connecticut School of Medicine in 1978, 48 years ago. Practices with On Demand Urgent Care Group PC, a 98-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Ohio and Pennsylvania.

Years since qualifying
48
Trained at
University of Connecticut School of Medicine
Licensed in
OH, PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2607 Rhawn St
Philadelphia, PA 19152-3038
Phone: (215) 333-0304
Fax: (215) 333-1402
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (4)

  • 2966 Street Rd, Bensalem, PA 19020-2604 — (215) 638-0666
  • 2021 Chestnut St, Philadelphia, PA 19103-3373 — (267) 443-2020
  • 700 Walnut St, Philadelphia, PA 19106-3505 — (215) 503-7300
  • 2451 Grant Ave, Philadelphia, PA 19114-1031 — (215) 934-3471

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 35043814 (OH)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD441854 (PA)

Record details

NPI number1245382241
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 18, 2007
Last updated in NPPESJuly 8, 2019

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE
Graduated 1978 (48 years in practice)
Group practice On Demand Urgent Care Group Pc — 98 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 patients40
Services billed 65 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 On Demand Urgent Care Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 98 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia