Individual provider

Rosalie O'brien

Family Nurse Practitioner Medicare enrolled

Rosalie O'brien is a Family Nurse Practitioner in Rochester, NY, registered under NPI 1003535816. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

Here is what surrounds this office in Rochester, based on OpenStreetMap data collected Sep 17, 2026. Parking is available about 649 ft away. The nearest transit stop is 668 ft away, served by The Highlands at Brighton.

4901 LAC DE VILLE BLVD, Rochester, NY 14618 Open in Google Maps →

Getting here and what is nearby

Parking Orthopaedics Employee Only Parking 139 ft ~1 min

4901 Lac de Ville Boulevard, Rochester 14620

Directions in Google Maps →

Parking Orthopaedics & Rehabilitation Patient Parking 346 ft ~2 min

4901 Lac de Ville Boulevard, Rochester 14620

Directions in Google Maps →

Parking 649 ft ~3 min

5901 Lac de Ville Boulevard, Rochester 14618

Directions in Google Maps →

Transit The Highlands at Brighton 668 ft ~3 min
Restaurant Amaya Indian Cuisine 0.37 mi ~8 min

Mo 17:00-21:00; Tu-Su 11:30-14:30,17:00-21:00

Directions in Google Maps →

Restaurant Mesquite Grill 0.39 mi ~8 min

1900 South Clinton Avenue, Rochester 14618

Mo-Th 11:00-21:00; Fr,Sa 11:00-21:30

+1 585-340-6026

Directions in Google Maps →

Restaurant Seoul Drop 0.41 mi ~9 min

1900 South Clinton Avenue, Rochester 14618

Mo-Sa 11:00-20:30; Su closed

+1-585-287-6080

Directions in Google Maps →

Grocery Tops 0.46 mi ~10 min

1900 South Clinton Avenue, Rochester 14618

Mo-Su 06:00-24:00

+1 585-442-2990

Directions in Google Maps →

OpenStreetMap via Overpass · ODbL 800 m radius Updated Sep 17, 2026

Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.

Credentials and Medicare

State licence
LicenceStateSpecialty
733734 NY Family Nurse Practitioner primary
350542 NY Family Nurse Practitioner

This provider holds licence 733734 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
4981072774
Enrollment ID
I20221129002168

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Family covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
Physician Assistants & Advanced Practice Nursing Providers ›Nurse Practitioner ›Family

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LF0000X Family Nurse Practitioner Family 733734 NY primary
363LF0000X Family Nurse Practitioner Family 350542 NY

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1003535816 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 24, 2022
Last updatedMar 12, 2025
StatusActive
Sole proprietorYes
GenderFemale
Practice address 4901 LAC DE VILLE BLVD
Rochester, NY 14618
(585) 275-5321
Fax (585) 320-1031
Mailing address 106 SUBURBAN CT APT 8
Rochester, NY 14620
This record was updated on Mar 12, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1003535816 passes the NPI check digit test The final digit 6 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 0 0 3 5 3 5 8 1
Doubled? — ×2 — ×2 — ×2 — ×2 — ×2 — ×2 — ×2
Value 8 0 8 8 0 2 0 0 3 1 3 1 8 2

Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1003535816?
NPI 1003535816 is the National Provider Identifier assigned to Rosalie O'brien in Rochester, NY. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Family cover?
Definition to come...
How do I contact Rosalie O'brien?
The phone number on file with NPPES is (585) 275-5321, last updated Mar 12, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Rosalie O'brien accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Where do I park when visiting Rosalie O'brien?
Parking is about 649 ft from the office. The closest transit stop is 668 ft away, on The Highlands at Brighton. Distances are straight-line estimates from OpenStreetMap, so walking routes may be slightly longer.
Is NPI 1003535816 a valid number?
Yes. 1003535816 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.