SYDNEY O'MALLEY M.D.
NPI 1851754626
Allergy & Immunology in Rochester, MN

Active since March 30, 2016PECOS EnrolledAccepts Medicare Assignment
200 1ST ST SW, ROCHESTER, MN 55905(507) 284-2511 Get Directions Write a Review

NPPES record last updated: November 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 30, 2025, May 13, 2025, Jul 15, 2024 and 2 more (5 updates tracked since 2016).

About Sydney O'malley M.d. NPPES

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

SYDNEY O'MALLEY M.D. (NPI 1851754626) is an individual allergy & immunology provider in Rochester, Minnesota, licensed in Minnesota (79453) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Pensacola, and is a graduate of Wright State University Boonshoft School Of Medicine (2016).

NPPES Registry Identity

NPI1851754626
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameSYDNEY O'MALLEYCredential: M.D.
Location Address200 1ST ST SWRochester, MN 55905-0001
Mailing AddressPo Box 860912Minneapolis, MN 55486-0912 · (507) 284-2511
Sole ProprietorNo
Medical School CMSWright State University Boonshoft School Of MedicineGraduated 2016
Enumeration DateMarch 30, 2016
Last NPPES UpdateNovember 30, 20255 updates tracked since enumeration
NPPES CertifiedNovember 30, 2025
NPI 1851754626 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License Licensed in MN · 79453
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedInternal MedicineTaxonomy 207R00000X · License 0101263141 (VA)
200 1ST ST SW, Rochester, MN 55905

Secondary Practice Location 1

Location 1220 Hovey RdPensacola, FL 32508-1044 · Phone (850) 452-2187

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Sydney O'malley M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880112283
PECOS Enrollment IDI20250520000415
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Internal Medicine
200 1ST ST SW
ROCHESTER, MN 55905
Pathology (Clinical Pathology/Laboratory Medicine)
200 1ST ST SW
ROCHESTER, MN 55905
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Optometrist
200 1ST ST SW
ROCHESTER, MN 55905
Psychologist
200 1ST ST SW
ROCHESTER, MN 55905
Nurse Anesthetist, Certified Registered
200 1ST ST SW
ROCHESTER, MN 55905
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 1ST ST SW
ROCHESTER, MN 55905

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'malley's NPI number?

The NPI number for Sydney O'malley is 1851754626. It was assigned to this individual provider in the NPPES registry on March 30, 2016.

Where is Sydney O'malley located?

Sydney O'malley practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.

What is Sydney O'malley's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Sydney O'malley enrolled in Medicare?

Yes. Sydney O'malley is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Sydney O'malley accept?

Health plans from Medica list Sydney O'malley as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sydney O'malley was last updated on November 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.