Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Sawsan Yasen Zammam, MD

Individual provider Internal Medicine Physician · NPI 1710913553

Sawsan Yasen Zammam, MD is a Hospitalist in Ephrata, Pennsylvania. Qualified in 1989, 37 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, works from 8 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
37
Licensed in
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

169 Martin Ave
Ephrata, PA 17522-1724
Phone: (717) 721-4740
Fax: (717) 738-6872
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (7)

  • 112 N Seventh St, Chambersburg, PA 17201 — (717) 217-4300
  • 147 Gettys St, Gettysburg, PA 17325-2534 — (717) 339-2025
  • 252 S 4th St, Lebanon, PA 17042-6111 — (717) 270-4876
  • 501 East Main Street, Waynesboro, PA 17268 — (717) 765-4000
  • 55 Monument Rd, York, PA 17403-5023 — (717) 851-4005
  • 1001 S George St, York, PA 17403-3676 — (717) 851-4005
  • 1701 Innovation Dr, York, PA 17408-8815 — (717) 843-8623

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD420902 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD420902 (PA)

Record details

NPI number1710913553
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2006
Last updated in NPPESDecember 4, 2024
Certification dateDecember 4, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesGERIATRIC MEDICINE, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients229
Services billed 260 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Wellspan Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2342 clinicians in the practice; 12 are shown here.

Other providers in Ephrata