NPPES file of Aug 9, 2026

Marie Claire Ziesat, M.D.

Surgery Physician · Glen Burnie, MD

Marie Claire Ziesat, M.D. is a surgery physician with a practice address in Glen Burnie, Maryland, and NPI 1649408386, issued on Jul 1, 2009. Check the license 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
1649408386
Name
Marie Claire Ziesat
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
AU3890402/C6730 IL
Self-reported in NPPES; status is on the state search
Practice location
305 Hospital Dr, Glen Burnie, MD 21061
Phone
(410) 553-8146
Enumerated
Jul 1, 2009
Record last updated
Sep 26, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140925000158); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2008
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.
Download card Updates feed

Also registered at 305 Hospital Dr

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

  1. Katharine Bisordi, MS, MGC, CGCGenetic Counselor (M.S.)1982010617
  2. Dorothy Boo, M.D.Therapeutic Radiology Physician1821280058
  3. Wendla Citron, M.D.Radiation Oncology Physician1477588846
  4. Grace Kim, PHARMDOncology Pharmacist1336927417
  5. Dan KunaprayoonRadiation Oncology Physician1043449762
  6. Jill Logan, PHARMDPharmacist1053751867

Verify Marie Claire Ziesat in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

11% more Medicare Part D claims than the average surgery physician in 2024

163 Medicare Part D claims for 52 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 43 claims were for opioids.

  1. Marie Ziesat163
  2. Specialty average147

Most prescribed

  1. Oxycodone Hcl38 claims
  2. Celecoxib20 claims
  3. Ondansetron Odt18 claims
  4. Naproxen12 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. University OF Maryland Community Medical Group IncEaston, MD

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

Marie Claire Ziesat among 672 surgery physician records in Maryland

Marie Claire Ziesat, M.D. is one of 672 surgery physician records with a practice address in Maryland. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 63% of them.

  • NPI issued2009 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2008 · median 2003 among the 385 with a school on file
  • Record last updated2014 · 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 208600000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Maryland

There are 672 surgery physician records in Maryland.

The 8 surgery physician records with the nearest ZIP codes

  1. Nabil Badro, M.D.Glen Burnie, MD 210611346351756
  2. Marshall Benjamin, M.D.Glen Burnie, MD 210611033125372
  3. Dave Choi, M.D.Glen Burnie, MD 210611043324577
  4. Cynthia Drogula, M.D.Glen Burnie, MD 210611598758443
  5. William Flinn, M.D.Glen Burnie, MD 210611801803200
  6. Alok Gupta, MDGlen Burnie, MD 210611063692218
  7. Richa Kalsi, MDGlen Burnie, MD 210611326571167
  8. Ashwin Nanavati, M.D.Glen Burnie, MD 210611891760146

Common questions

What is Marie Claire Ziesat, M.D.'s NPI number?

Marie Claire Ziesat, M.D.'s National Provider Identifier (NPI) is 1649408386, issued on Jul 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Marie Claire Ziesat, M.D. located?

The NPPES record lists a practice address at 305 Hospital Dr, Glen Burnie, MD, 21061. Phone: (410) 553-8146. Providers update this record themselves, so call before visiting.

How can I verify Marie Claire Ziesat, M.D.'s license?

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 Marie Claire Ziesat, M.D. prescribe under Medicare Part D?

In 2024, Marie Claire Ziesat, M.D. had 163 Medicare Part D claims for 52 beneficiaries; the average among surgery physician prescribers was 147. 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.