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Family Practice

Joanne K. Wills, MD

Works at hospitals in Baltimore, MD · Maryland

Summary

Dr. Joanne K. Wills, MD is a family doctor at 3701 N Charles St, South Chapman Building Suite 102, Towson, MD 21204. Phone: (443) 849-2658. Accepts Medicare assignment. In 2024, Joanne K. Wills had 180 Original Medicare patients and 679 services. NPI 1942395447. 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: 3701 N Charles St, South Chapman Building Suite 102, Towson, MD 21204 · Directions (9 more locations)
  • Phone: (443) 849‑2658
  • Medicare: Accepts Medicare assignment
  • Hospital: Greater Baltimore Medical Center
  • Group practice: Greater Baltimore Medical Center
  • Medical school: Jefferson Medical College Of Thomas Jefferson University · graduated 1986 (40 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Joanne K. Wills, 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 Joanne K. Wills accept Medicare assignment?
Yes. Medicare's clinician data says Joanne K. Wills 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 Joanne K. Wills see?
In 2024, CMS data shows 180 Original Medicare patients and 679 services for Joanne K. Wills. This counts Original Medicare only and measures volume, not quality.
What is Joanne K. Wills's NPI number?
1942395447. 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 Joanne K. Wills, 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 patients180
Services billed to Medicare679
Different services or procedures29
Participating Medicare providerYes
Average age of these patients71

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)130 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)107 services
  3. 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)83 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)74 services
  5. Hemoglobin a1c level (83036)41 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 pressure65%
  • High cholesterol47%
  • Arthritis37%
  • Anxiety27%
  • Diabetes24%
  • Depression22%

Hospitals where Joanne K. Wills works

Medicare's Facility Affiliation Data lists Joanne K. Wills 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 Joanne K. Wills is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.

Group practices

Medicare enrollment lists Joanne K. Wills as a member of this group (CMS data updated October 2, 2026).

  • Greater Baltimore Medical Center354 clinicians in the group

Specialties

Find other Family Practice doctors in Maryland →

Other family doctors in Towson

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

All family doctors in Towson →

Other clinicians in Greater Baltimore Medical Center

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 year1986 (40 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942395447
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