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

Dr. Christine P Lewis, MD

Individual provider Gastroenterology Physician · NPI 1659361723

Dr. Christine P Lewis, MD practises Gastroenterology in Hagerstown, Maryland. Graduated from Howard University College of Medicine in 1993, 33 years ago. Practices with Medical Practices of Antietam, LLC, a 231-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
33
Trained at
Howard University College of Medicine
Licensed in
MD
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

11110 Medical Campus Rd Ste 246
Hagerstown, MD 21742-6700
Phone: (301) 665-4585
Fax: (301) 665-4587
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence D54630 (MD)

Record details

NPI number1659361723
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 28, 2005
Last updated in NPPESMarch 10, 2026
Certification dateMarch 10, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolHOWARD UNIVERSITY COLLEGE OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Medical Practices Of Antietam, Llc — 231 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 20 times · 48th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 12 times · 44th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients515
Services billed 894 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Medical Practices of Antietam, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 231 clinicians in the practice; 12 are shown here.

Other providers in Hagerstown