NPPES file of Aug 9, 2026

Joanne K. Wills, M.D.

Family Medicine Physician · Baltimore, MD

Joanne K. Wills, M.D. is a family medicine physician with a practice address in Baltimore, Maryland, and NPI 1942395447, issued on Oct 3, 2006. Check the license (Maryland D51116, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942395447
Name
Joanne K. Wills
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
D51116 MD
Self-reported in NPPES; status is on the state search
Practice location
6565 N Charles St Ste 411, Baltimore, MD 21204
Phone
(443) 849-2707
Enumerated
Oct 3, 2006
Record last updated
Aug 18, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
452100500 MD
Medicare enrollment
Enrolled (PECOS I20051028000822); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1986
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6565 N Charles St Ste 411

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christa Fistler, MDCritical Care Medicine (Internal Medicine) Physician1770608887
  2. Chelsi Green, MDPulmonary Disease Physician1871082099
  3. William Hand, MDFamily Medicine Physician1295773141
  4. Kathleen Mathey, M.D.Family Medicine Physician1366547309

Verify Joanne K. Wills in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D51116
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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44% fewer Medicare Part D claims than the average family medicine physician in 2024

1,977 Medicare Part D claims for 269 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 71 claims were for opioids.

  1. Joanne Wills1,977
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium108 claims
  2. Amlodipine Besylate82 claims
  3. Omeprazole77 claims
  4. Gabapentin71 claims
  5. Metformin Hcl68 claims
  6. Levothyroxine Sodium63 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Greater Baltimore Medical Center IncBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joanne K. Wills among 1,912 family medicine physician records in Maryland

Joanne K. Wills, M.D. is one of 1,912 family medicine physician records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 54% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1986 · median 2004 among the 1,141 with a school on file
  • Record last updated2011 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Family Medicine Physician providers in Maryland

There are 1,912 family medicine physician records in Maryland.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Andrews, D.O.Towson, MD 212041831503226
  2. Mari Blackburn, D.O.Towson, MD 212041366413437
  3. Ruth Brocato, MDBaltimore, MD 212041104990977
  4. Rushia Butler, M.D.Towson, MD 212041376582072
  5. William Hand, MDBaltimore, MD 212041295773141
  6. Pamela Lin, M.D.Towson, MD 212041053382853
  7. Kathleen Mathey, M.D.Baltimore, MD 212041366547309
  8. Courtenay Morrow, D.O.Baltimore, MD 212041033436928

Common questions

What is Joanne K. Wills, M.D.'s NPI number?

Joanne K. Wills, M.D.'s National Provider Identifier (NPI) is 1942395447, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joanne K. Wills, M.D. located?

The NPPES record lists a practice address at 6565 N Charles St Ste 411, Baltimore, MD, 21204. Phone: (443) 849-2707. Providers update this record themselves, so call before visiting.

How can I verify Joanne K. Wills, M.D.'s license?

NPPES lists Maryland license number D51116, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joanne K. Wills, M.D. prescribe under Medicare Part D?

In 2024, Joanne K. Wills, M.D. had 1,977 Medicare Part D claims for 269 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.