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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

SYDNEY O'CONNOR PA
NPI 1366358103
Physician Assistant in Baltimore, MD

Active since August 21, 2026
345 SAINT PAUL ST, BALTIMORE, MD 21202(410) 332-9000 Get Directions Write a Review

NPPES record added: August 21, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Sydney O'connor Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYDNEY O'CONNOR PA (NPI 1366358103) is an individual physician assistant in Baltimore, Maryland and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1366358103
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameSYDNEY O'CONNORCredential: PA
Location Address345 SAINT PAUL STBaltimore, MD 21202-2123
Mailing Address345 Saint Paul StBaltimore, MD 21202-2123
Phone(410) 332-9000
Sole ProprietorNo
Enumeration DateAugust 21, 2026
NPPES CertifiedAugust 21, 2026
✔ NPI 1366358103 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
345 SAINT PAUL ST, Baltimore, MD 21202
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KRISTINE LYNN FISHER MSN, BSN, RN, AGACNP
Nurse Practitioner (Acute Care)
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (717) 504-9365
COURTNEY O'BANNON ROBERTS
Nurse Practitioner (Family)
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (410) 332-9000
CAROLINA BEATRIZ AYALA CRNP
Nurse Practitioner (Primary Care)
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (410) 332-9000
MRS. ANGELA NICOLE GAHRES NP
Nurse Practitioner (Gerontology)
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (410) 332-9000
MIRIAM RIVKAH FREUND PA
Physician Assistant
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (224) 616-4437
MAGGIE CHEN
Student in an Organized Health Care Education/Training Program
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (410) 332-9694
MR. WILLIAM BUNDESEN III LCSW-C
Social Worker (Clinical)
345 SAINT PAUL ST
BALTIMORE, MD 21202
Baltimore City (410) 332-9000
DR. PETER ALEXANDER GALAN M.D.
Anesthesiology
345 SAINT PAUL ST, MERCY MEDICAL CENTER, BUNTING BUILDING, 7TH FLOOR
BALTIMORE, MD 21202
Baltimore City (410) 332-9694

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sydney O'connor's NPI number?

The NPI number for Sydney O'connor is 1366358103. It was assigned to this individual provider in the NPPES registry on August 21, 2026.

Where is Sydney O'connor located?

Sydney O'connor practices at 345 Saint Paul St, Baltimore, MD 21202. The listed phone number is (410) 332-9000.

What is Sydney O'connor's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Sydney O'connor was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.