NPPES file of Aug 9, 2026

Sydney Marie Zarriello

Emergency Medicine Physician · Baltimore, MD

Sydney Marie Zarriello is an emergency medicine physician with a practice address in Baltimore, Maryland, and NPI 1588240550, issued on Mar 22, 2021. 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
1588240550
Name
Sydney Marie Zarriello
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
33896 WV
Self-reported in NPPES; status is on the state search
Practice location
110 S Paca St FL 6, Baltimore, MD 21201
Phone
(443) 805-8290
Enumerated
Mar 22, 2021
Record last updated
Jul 24, 2024
Medicare enrollment
Enrolled (PECOS I20240830000962); accepts Medicare assignment
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 110 S Paca St FL 6

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

  1. Heba Al Rebh, M.D.Emergency Medicine Physician1124414222
  2. Husni Alasadi, MDStudent in an Organized Health Care Education/Training Program1720872708
  3. Salem Alghamdi, MDStudent in an Organized Health Care Education/Training Program1134646946
  4. Tara Balasubramanian, MDStudent in an Organized Health Care Education/Training Program1417708058
  5. Nadege Baptiste-Delerme, CRNPFamily Nurse Practitioner1306402136
  6. Samar BehdinStudent in an Organized Health Care Education/Training Program1275384810

Verify Sydney Marie Zarriello 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

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66% fewer Medicare Part D claims than the average emergency medicine physician in 2024

76 Medicare Part D claims for 51 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Sydney Zarriello76
  2. Specialty average226

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. City Hospital IncMartinsburg, WV

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

Sydney Marie Zarriello among 1,190 emergency medicine physician records in Maryland

Sydney Marie Zarriello is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 94% of them.

  • NPI issued2021 · 94% of these records are older, 3% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2021 · median 2010 among the 571 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

505 emergency medicine physician records list a practice address in Baltimore

They are 505 of the 35,183 NPPES records with a practice address in Baltimore, and 1,190 emergency medicine physician records in Maryland.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Charles Bergman, M.D.Baltimore, MD 212011962468306
  2. Michael Bond, M.D.Baltimore, MD 212011184665739
  3. Laura Bontempo, MDBaltimore, MD 212011356330104
  4. Brian BrowneBaltimore, MD 212011932152790
  5. Rose ChasmBaltimore, MD 212011528002359
  6. Marcia CortBaltimore, MD 212011487698775
  7. Wade Gaasch, M.D.Baltimore, MD 212011407898273
  8. Katherine GrundmannBaltimore, MD 212011487696258

Common questions

What is Sydney Marie Zarriello's NPI number?

Sydney Marie Zarriello's National Provider Identifier (NPI) is 1588240550, issued on Mar 22, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sydney Marie Zarriello located?

The NPPES record lists a practice address at 110 S Paca St FL 6, Baltimore, MD, 21201. Phone: (443) 805-8290. Providers update this record themselves, so call before visiting.

How can I verify Sydney Marie Zarriello'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 Sydney Marie Zarriello prescribe under Medicare Part D?

In 2024, Sydney Marie Zarriello had 76 Medicare Part D claims for 51 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.