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

Family Practice

Stephanie Malleus, MD

Works at hospitals in Wilmington, DE · Delaware

Summary

Dr. Stephanie Malleus, MD is a family doctor at 213 Greenhill Ave, Suite B, Wilmington, DE 19805. Phone: (302) 429-5870. Accepts Medicare assignment. In 2024, Stephanie Malleus had 357 Original Medicare patients and 1,043 services. NPI 1285727685. 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.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 213 Greenhill Ave, Suite B, Wilmington, DE 19805 · Directions (1 more location)
  • Phone: (302) 429‑5870
  • Medicare: Accepts Medicare assignment
  • Hospital: St Francis Hospital
  • Group practice: St Francis Hospital Inc (+1 more)
  • Medical school: Jefferson Medical College Of Thomas Jefferson University · graduated 1976 (50 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Stephanie Malleus, 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 Stephanie Malleus accept Medicare assignment?
Yes. Medicare's clinician data says Stephanie Malleus 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 Stephanie Malleus see?
In 2024, CMS data shows 357 Original Medicare patients and 1,043 services for Stephanie Malleus. This counts Original Medicare only and measures volume, not quality.
What is Stephanie Malleus's NPI number?
1285727685. 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 Stephanie Malleus, 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 patients357
Services billed to Medicare1,043
Different services or procedures41
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)237 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)209 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)184 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)125 services
  5. Annual depression screening, 5 to 15 minutes (G0444)40 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 blood pressure75%
  • High cholesterol75%
  • Arthritis50%
  • Depression32%
  • Anxiety32%
  • Chronic kidney disease29%

Hospitals where Stephanie Malleus works

Medicare's Facility Affiliation Data lists Stephanie Malleus 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.

  • St Francis HospitalWilmington, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080003

Practice locations

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

Group practices

Medicare enrollment lists Stephanie Malleus as a member of these groups (CMS data updated October 2, 2026).

  • St Francis Hospital Inc46 clinicians in the group
  • Family Medicine at Greenhill8 clinicians in the group

Specialties

Find other Family Practice doctors in Delaware →

Other family doctors in Wilmington

Clinicians with the same Medicare primary specialty in Wilmington, DE — not a recommendation.

All family doctors in Wilmington →

Other clinicians in St Francis Hospital Inc

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

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year1976 (50 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1285727685
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