STEPHEN K SIGWORTH MD
NPI 1710912217
Internal Medicine in Philadelphia, PA
About Stephen K Sigworth Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN K SIGWORTH MD (NPI 1710912217) is an individual internal medicine provider in Philadelphia, Pennsylvania, licensed in New York (228358) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Astoria, and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Stephen K Sigworth Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Stephen Sigworth reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Astoria, NY 11102
- Reassigned Medicare billing, New York enrollment
- 207 clinicians in this Medicare group
Wantagh, NY 11793
- Reassigned Medicare billing, New York enrollment
- 572 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Stephen Sigworth's NPI number?
The NPI number for Stephen Sigworth is 1710912217. It was assigned to this individual provider in the NPPES registry on July 12, 2006.
Where is Stephen Sigworth located?
Stephen Sigworth practices at 833 Chestnut St Suite 701, Philadelphia, PA 19107. The listed phone number is (215) 955-6180.
What is Stephen Sigworth's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Stephen Sigworth enrolled in Medicare?
Yes. Stephen Sigworth is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Stephen Sigworth's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Sigworth reassigns Medicare benefits to 2 organizations: Icahn School Of Medicine At Mount Sinai (Astoria, NY) and North Shore Medical Group Of The Mount Sinai School Of Medicine (Wantagh, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Sigworth's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stephen Sigworth was last updated on May 28, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Stephen K Sigworth, MD · NPI 1710912217
Internal Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since July 12, 2006.
## Identity
- **NPI:** 1710912217 (Entity type: Individual)
- **Enumerated:** July 12, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 228358 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 833 CHESTNUT ST, SUITE 701, Philadelphia, PA 19107-4414
- **Phone:** (215) 955-6180 · **Fax:** (215) 955-6410
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Icahn School Of Medicine At Mount Sinai (NPI 1477932275, Astoria, NY); North Shore Medical Group Of The Mount Sinai School Of Medicine (NPI 1992417323, Wantagh, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** May 28, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1710912217) · Data from the CMS NPPES public registry.