NPPES file of Aug 9, 2026

Charles S. Resnik, MD

Diagnostic Radiology Physician · Baltimore, MD

Charles S. Resnik, MD is a diagnostic radiology physician with a practice address in Baltimore, Maryland, and NPI 1255325940, issued on Sep 8, 2005. Check the license (Maryland D0033520, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255325940
Name
Charles S. Resnik
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
D0033520 MD
Self-reported in NPPES; status is on the state search
Practice location
22 S Greene St, Dept OF Radiology, Baltimore, MD 21201
Phone
(410) 328-3477
Enumerated
Sep 8, 2005
Record last updated
Apr 26, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicaid IDs
018770764 DC
408031900 MD
Medicare enrollment
Enrolled (PECOS I20060724000324); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1977
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 22 S Greene St, Dept OF Radiology

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

  1. Imran Ahmed, D.ODiagnostic Radiology Physician1003202664
  2. David Amadu, M.D.Vascular & Interventional Radiology Physician1912319989
  3. Omer Awan, MDDiagnostic Radiology Physician1164658472
  4. Benita Banks, MDDiagnostic Radiology Physician1801867593
  5. Alexis Boscak, MDDiagnostic Radiology Physician1962418764
  6. Qi Cao, MDNuclear Imaging & Therapy Physician1396072575

Verify Charles S. Resnik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0033520
    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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Bills Medicare through 3 group practices

  1. University Imaging Center, LLCBaltimore, MD
  2. University OF Maryland Diagnostic Imaging Specialists P ABel Air, MD
  3. University OF Maryland Diagnostic Radiology, LLCLa Plata, MD

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

Charles S. Resnik among 877 diagnostic radiology physician records in Maryland

Charles S. Resnik, MD is one of 877 diagnostic radiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1977 · median 2003 among the 604 with a school on file
  • Record last updated2019 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

493 diagnostic radiology physician records list a practice address in Baltimore

They are 493 of the 35,183 NPPES records with a practice address in Baltimore, and 877 diagnostic radiology physician records in Maryland.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Benita Banks, MDBaltimore, MD 212011801867593
  2. William Carter, M.D.Baltimore, MD 212011912905563
  3. Barry Daly, MDBaltimore, MD 212011932195989
  4. George Gross, MDBaltimore, MD 212011649266610
  5. Jeffrey Hirsch, M.D.Baltimore, MD 212011023097060
  6. Marcia McAvoy, M.D.Baltimore, MD 212011942296124
  7. Reuben Mezrich, MDBaltimore, MD 212011306832480
  8. Michael Mulligan, MDBaltimore, MD 212011972599553

Common questions

What is Charles S. Resnik, MD's NPI number?

Charles S. Resnik, MD's National Provider Identifier (NPI) is 1255325940, issued on Sep 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Charles S. Resnik, MD located?

The NPPES record lists a practice address at 22 S Greene St, Dept OF Radiology, Baltimore, MD, 21201. Phone: (410) 328-3477. Providers update this record themselves, so call before visiting.

How can I verify Charles S. Resnik, MD's license?

NPPES lists Maryland license number D0033520, 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.

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.