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

Ophthalmology

Charlotte Marous, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Dr. Charlotte Marous, MD is an ophthalmologist at 840 Walnut St, Philadelphia, PA 19107. Phone: (215) 928-3041. Accepts Medicare assignment. In 2024, Charlotte Marous had 327 Original Medicare patients and 2,143 services. NPI 1659802726. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Charlotte Marous, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Charlotte Marous accept Medicare assignment?
Yes. Medicare's clinician data says Charlotte Marous accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Charlotte Marous see?
In 2024, CMS data shows 327 Original Medicare patients and 2,143 services for Charlotte Marous. This counts Original Medicare only and measures volume, not quality.
What is Charlotte Marous's NPI number?
1659802726. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Charlotte Marous, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients327
Services billed to Medicare2,143
Different services or procedures70
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)302 services
  2. Exam of visual field with limited testing (92081)61 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)50 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)46 services
  5. Photography of content of eyes (92285)42 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure69%
  • Arthritis47%
  • Diabetes27%
  • Anxiety27%
  • Ischemic heart disease26%

Hospitals where Charlotte Marous works

Medicare's Facility Affiliation Data lists Charlotte Marous at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Charlotte Marous is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Charlotte Marous as a member of this group (CMS data updated October 2, 2026).

  • Wills Eye Ophthalmology Clinic, Inc147 clinicians in the group

Specialties

Find other Ophthalmology doctors in Pennsylvania →

Other ophthalmologists in Philadelphia

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

All ophthalmologists in Philadelphia →

Other clinicians in Wills Eye Ophthalmology Clinic, Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659802726
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians