Stephen Warner Siebert, MD, MPH
Forensic Psychiatry Physician · Towson, MD
Stephen Warner Siebert, MD, MPH is a forensic psychiatry physician with a practice address in Towson, Maryland, and NPI 1245436484, issued on Jun 25, 2007. Check the license (Maryland D26941, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Stephen Warner Siebert
- Credential
- MD, MPH
- Primary taxonomy
- Forensic Psychiatry Physician 2084F0202X
- License number
- D26941 MD
Self-reported in NPPES; status is on the state search - Practice location
- 29 Allegheny Avenue, Towson, MD 21204
- Phone
- (410) 583-7885
- Enumerated
- Jun 25, 2007
- Record last updated
- Dec 18, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (410) 583-8178
- Entity
- Type 1 · individual
8 nearest forensic psychiatry physician records → All 21 in Maryland → Look up another NPI →
Verify Stephen Warner Siebert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D26941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average forensic psychiatry physician in 2024
116 Medicare Part D claims for 12 beneficiaries, against an average of 803 among the 199 providers of this specialty who prescribed in Part D.
Most prescribed
- Lamotrigine22 claims
- Alprazolam16 claims
- Clonazepam16 claims
- Duloxetine Hcl12 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.
Stephen Warner Siebert among 21 forensic psychiatry physician records in Maryland
Stephen Warner Siebert, MD, MPH is one of 21 forensic psychiatry physician records with a practice address in Maryland. 33% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 29% newer
- In a Medicare fileYes · 33% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2008 · 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 2084F0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Forensic Psychiatry Physician providers in Maryland
There are 21 forensic psychiatry physician records in Maryland.
All 21 in Maryland → Every provider in Towson → Forensic Psychiatry Physician nationwide →
The 8 forensic psychiatry physician records with the nearest ZIP codes
- Joanna Brandt, MDTowson, MD 212041760417158
- Christiane Tellefsen, M.D.Baltimore, MD 212021710077268
- Angela Kim-Lee, M.D.Baltimore, MD 212111235129180
- Angeline Pham, MDCatonsville, MD 212281881198364
- Neil Blumberg, M.D.Timonium, MD 210931033322607
- Willie Hamlin, M.D.Silver Spring, MD 209101992819536
- Herbert Chissell, M.D.Cumberland, MD 215021982659728
- Rosemary Carr-Malone, M.D.Bethesda, MD 208891093710246
Common questions
What is Stephen Warner Siebert, MD, MPH's NPI number?
Stephen Warner Siebert, MD, MPH's National Provider Identifier (NPI) is 1245436484, issued on Jun 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Warner Siebert, MD, MPH located?
The NPPES record lists a practice address at 29 Allegheny Avenue, Towson, MD, 21204. Phone: (410) 583-7885. Providers update this record themselves, so call before visiting.
How can I verify Stephen Warner Siebert, MD, MPH's license?
NPPES lists Maryland license number D26941, 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 Stephen Warner Siebert, MD, MPH prescribe under Medicare Part D?
In 2024, Stephen Warner Siebert, MD, MPH had 116 Medicare Part D claims for 12 beneficiaries; the average among forensic psychiatry physician prescribers was 803. 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.