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

Stephen K Sigworth, MD

Individual provider Internal Medicine Physician · NPI 1710912217

Stephen K Sigworth, MD practises Internal Medicine in Philadelphia, Pennsylvania. Qualified in 1995, 31 years ago. Practices with North Shore Medical Group of the Mount Sinai School of Medicine, a 323-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York and Pennsylvania.

Years since qualifying
31
Licensed in
NY, PA
In the registry since
2006
Specialties on file
2
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

833 Chestnut St Ste 701
Philadelphia, PA 19107-4414
Phone: (215) 955-6180
Fax: (215) 955-6410
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2520 30th Ave Fl 4, Astoria, NY 11102-2448 — (718) 808-7777

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 228358 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD457656 (PA)

Record details

NPI number1710912217
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESMay 28, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice North Shore Medical Group Of The Mount Sinai School Of Medicine — 323 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 patients58
Services billed 357 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 North Shore Medical Group of the Mount Sinai School of Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 323 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia