Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Simeng Sun, MD

Works at hospitals in Allentown, PA · Pottsville, PA · Bethlehem, PA · Pennsylvania

Summary

Simeng Sun, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Allentown, PA, Pottsville, PA and Bethlehem, PA. NPI 1316380611. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Simeng Sun, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
13Years since medical school (graduated 2013)
FemaleGender (as listed)
Lehigh Valley Physician GroupGroup practice

Quick answers

Which hospitals does Simeng Sun work at?
Medicare's official clinician data lists Simeng Sun at 3 hospitals: Lehigh Valley Hospital, Schuylkill Medical Center - South Jackson Street and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Simeng Sun see patients?
Medicare's clinician data lists 1 practice location in Allentown, PA. Call before your visit to confirm the address.
What is Simeng Sun's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Endocrinology.
Does Simeng Sun accept Medicare assignment?
Yes. Medicare's clinician data says Simeng Sun accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Simeng Sun offer telehealth?
Medicare's clinician data says Simeng Sun offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Simeng Sun?
(610) 402-6790, as listed in official Medicare / NPI Registry data.
What is Simeng Sun's NPI number?
1316380611. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Simeng Sun works

Medicare's Facility Affiliation Data lists Simeng Sun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Simeng Sun is enrolled with Medicare (CMS data updated 2026-10-02).

  • 1243 S Cedar Crest Blvd, 2800 Lvpg EndocrinologyAllentown, PA 18103 (610) 402‑6790

Group practices

Medicare enrollment lists Simeng Sun as a member of this group (CMS data updated 2026-10-02).

  • Lehigh Valley Physician Group2,542 clinicians in the group

Specialties

Find other Internal Medicine doctors in Pennsylvania →

Other internal medicine doctors in Allentown

Clinicians with the same Medicare primary specialty in Allentown, PA — not a recommendation.

All internal medicine doctors in Allentown →

Clinician information

CredentialMD
Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1316380611
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians