Registry data as of Aug 27, 2026

Liam Guenther, MD

Forensic Psychiatry Physician · Catonsville, MD

Liam Guenther, MD is a forensic psychiatry physician with a practice address in Catonsville, Maryland, and NPI 1265056360, issued on Jun 4, 2020. Check the license (Maryland D0101223, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1265056360
Name
Liam Guenther
Credential
MD
Primary taxonomy
Forensic Psychiatry Physician 2084F0202X
License number
D0101223 MD
Self-reported in NPPES; status is on the state search
Practice location
55 Wade Ave, Catonsville, MD 21228
Phone
(410) 402-6000
Enumerated
Jun 4, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 55 Wade Ave

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

  1. Heather Adams, PSYDClinical Psychologist1306765748
  2. Muhammed Ajanah, M.DPsychiatry Physician1265417224
  3. Miriam Alonso, PA-CMedical Physician Assistant1588779839
  4. Temitope Animashaun BalogunPsychiatric/Mental Health Nurse Practitioner1265324180
  5. Zakira Anwar, MDPsychiatry Physician1285690818
  6. Eric Arbach, LCSW-CClinical Social Worker1497687222

Verify Liam Guenther in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0101223
    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.

98% fewer Medicare Part D claims than the average forensic psychiatry physician in 2024

14 Medicare Part D claims, against an average of 853 among the 395 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Liam Guenther14
  2. Specialty average853

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.

Forensic Psychiatry Physician providers in Maryland

There are 27 forensic psychiatry physician records in Maryland.

Other forensic psychiatry physician records in Maryland

  1. Saadia Alizai, M.D.Chevy Chase, MD1790771541
  2. David Benedek, M.D.Bethesda, MD1598826679
  3. Frederick Berlin, M.D., PH.D.Baltimore, MD1972596773
  4. Neil Blumberg, M.D.Timonium, MD1033322607
  5. Joanna Brandt, MDTowson, MD1760417158
  6. Kathryn Brodie, MDJessup, MD1508485368
  7. Rosemary Carr-Malone, M.D.Bethesda, MD1093710246
  8. Herbert Chissell, M.D.Cumberland, MD1982659728
  9. Gregory Fey, M.D.Annapolis, MD1811034705
  10. Stephen Goldberg, MDPikesville, MD1710968102

Common questions

What is Liam Guenther, MD's NPI number?

Liam Guenther, MD's National Provider Identifier (NPI) is 1265056360, issued on Jun 4, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Liam Guenther, MD located?

The NPPES record lists a practice address at 55 Wade Ave, Catonsville, MD, 21228. Phone: (410) 402-6000. Providers update this record themselves, so call before visiting.

How can I verify Liam Guenther, MD's license?

NPPES lists Maryland license number D0101223, 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 Liam Guenther, MD prescribe under Medicare Part D?

In 2024, Liam Guenther, MD had 14 Medicare Part D claims; the average among forensic psychiatry physician prescribers was 853. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.