Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Mark W Stull, MD

Individual provider Anesthesiology Physician · NPI 1851382907

Dr. Mark W Stull, MD practises Anesthesiology in Lancaster, Pennsylvania. Graduated from Jefferson Medical College of Thomas Jefferson University in 1982, 44 years ago. Practices with Lancaster General Hospital, a 518-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
44
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
PA
In the registry since
2005
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

133 E Frederick St
Lancaster, PA 17602-2222 Not confirmed with CMS for 19 years — call before visiting
Phone: (717) 394-9821
Fax: (717) 394-0175
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD-035983-E (PA)

Record details

NPI number1851382907
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 28, 2005
Last updated in NPPESJuly 13, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1982 (44 years in practice)
Group practice Lancaster General Hospital — 518 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 patients288
Services billed 325 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Lancaster General Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 518 clinicians in the practice; 12 are shown here.

Other providers in Lancaster