Liam Anthony Guenther, MD
Psychiatry Physician · Catonsville, MD
Liam Anthony Guenther, MD is a 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.
- Name
- Liam Anthony Guenther
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- 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
- Record last updated
- Aug 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20251001002745); may accept Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2020
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
Also registered at 55 Wade Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heather Adams, PSYDClinical Psychologist1306765748
- Muhammed Ajanah, M.DPsychiatry Physician1265417224
- Miriam Alonso, PA-CMedical Physician Assistant1588779839
- Temitope Animashaun BalogunPsychiatric/Mental Health Nurse Practitioner1265324180
- Zakira Anwar, MDPsychiatry Physician1285690818
- Eric Arbach, LCSW-CClinical Social Worker1497687222
Verify Liam Anthony Guenther in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0101223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatry physician in 2024
14 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Liam Anthony Guenther among 1,451 psychiatry physician records in Maryland
Liam Anthony Guenther, MD is one of 1,451 psychiatry physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 92% of them.
- NPI issued2020 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated2020 · median 2000 among the 525 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 psychiatry physician records list a practice address in Catonsville
They are 25 of the 1,023 NPPES records with a practice address in Catonsville, and 1,451 psychiatry physician records in Maryland.
All 1,451 in Maryland → Every provider in Catonsville → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Muhammed Ajanah, M.DCatonsville, MD 212281265417224
- Zakira Anwar, MDCatonsville, MD 212281285690818
- Robert Buchanan, M.D.Catonsville, MD 212281649233727
- Anisa Cott, M.D.Catonsville, MD 212281265481790
- David Dunnigan, M.D.Catonsville, MD 212281124003066
- Beverli Goldberg, MDCatonsville, MD 212281801877964
- Frine Gonzales, M.D.Catonsville, MD 212281265401764
- Syeda Hafiz, M.D.Baltimore, MD 212281215998711
Common questions
What is Liam Anthony Guenther, MD's NPI number?
Liam Anthony 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 Anthony 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 Anthony 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 Anthony Guenther, MD prescribe under Medicare Part D?
In 2024, Liam Anthony Guenther, MD had 14 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.