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

Ophthalmology

Sandra Cremers, MD

Sees patients in Rockville, MD · Maryland

Summary

Sandra Cremers, MD (Ophthalmology) is enrolled with Medicare at 1 practice location in Rockville, MD. NPI 1588654040. 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 Sandra Cremers, 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
30Years since medical school (graduated 1996)
Warren Alpert Medical School Of Brown UniversityMedical school
FemaleGender (as listed)
Visionary Ophthalmology LLCGroup practice

Quick answers

Where does Sandra Cremers see patients?
Medicare's clinician data lists 1 practice location in Rockville, MD. Call before your visit to confirm the address.
What is Sandra Cremers's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Sandra Cremers accept Medicare assignment?
Yes. Medicare's clinician data says Sandra Cremers 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 Sandra Cremers?
(301) 896-0890, as listed in official Medicare / NPI Registry data.
What is Sandra Cremers's NPI number?
1588654040. 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 Sandra Cremers is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Visionary Ophthalmology LLC17 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
Medical schoolWarren Alpert Medical School Of Brown University
Graduation year1996
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588654040
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