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

Ophthalmology

Jack D. Lemon, MD

Sees patients in Rockville, MD · Arlington, VA · Washington, DC · Maryland, Virginia, District of Columbia

Summary

Jack D. Lemon, MD (Ophthalmology) is enrolled with Medicare at 3 practice locations in Rockville, MD, Arlington, VA and Washington, DC. NPI 1003378019. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jack D. Lemon, 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

OphthalmologyPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
MaleGender (as listed)
Toufic S. Melki, MS, MD, PAGroup practice

Quick answers

Where does Jack D. Lemon see patients?
Medicare's clinician data lists 3 practice locations, including Rockville, MD, Arlington, VA and Washington, DC. Call before your visit to confirm the address.
What is Jack D. Lemon's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Jack D. Lemon accept Medicare assignment?
Yes. Medicare's clinician data says Jack D. Lemon 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.
What is the phone number for Jack D. Lemon?
(301) 279-9123, as listed in official Medicare / NPI Registry data.
What is Jack D. Lemon's NPI number?
1003378019. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Jack D. Lemon is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jack D. Lemon as a member of this group (CMS data updated 2026-10-02).

  • Toufic S. Melki, MS, MD, PA2 clinicians in the group

Specialties

Find other Ophthalmology doctors in Maryland →

Other ophthalmologists in Rockville

Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.

All ophthalmologists in Rockville →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003378019
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians