SYDNEY MILLER O'BRIEN
NPI 1689319170
Emergency Medicine in Royal Oak, MI

Q: What is Sydney Miller O'brien's NPI number?

The NPI number for Sydney Miller O'brien is 1689319170. It was assigned to this individual provider in the NPPES registry on April 29, 2022.

Q: What is Sydney Miller O'brien's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Active since April 29, 2022PECOS EnrolledAccepts Medicare Assignment

3601 W 13 MILE RD, ROYAL OAK, MI 48073(248) 898-5000 Get Directions Write a Review

NPPES record last updated: February 24, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 4, 2025, Apr 29, 2022 (2 updates tracked since 2022).

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About Sydney Miller O'brien NPPES

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

SYDNEY MILLER O'BRIEN (NPI 1689319170) is an individual emergency medicine provider in Royal Oak, Michigan, licensed in Michigan (5101028447) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital Royal Oak, and is a graduate of Michigan State University College Of Osteopathic Medicine (2022).

NPPES Registry Identity

NPI1689319170

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameSYDNEY MILLER O'BRIEN

Location Address3601 W 13 MILE RDRoyal Oak, MI 48073-6712

Mailing Address3601 W 13 Mile RdRoyal Oak, MI 48073-6712

Phone(248) 898-5000

Sole ProprietorYes

Medical School CMSMichigan State University College Of Osteopathic MedicineGraduated 2022

Enumeration DateApril 29, 2022

Last NPPES UpdateFebruary 24, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 24, 2026

✔ NPI 1689319170 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in MI · 5101028447✔ Licensed in MI · 5151015471

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

3601 W 13 MILE RD, Royal Oak, MI 48073

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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 Miller O'brien 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 ID2769869924

PECOS Enrollment IDI20250529002394

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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Beaumont Hospital Royal Oak

Acute Care Hospitals · Royal Oak, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230130

Location3601 W Thirteen Mile RdRoyal Oak, MI 48073 · Oakland County

Emergency services Birthing friendly

Beaumont Hospital, Troy

Acute Care Hospitals · Troy, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230269

Location44201 Dequindre RoadTroy, MI 48085 · Oakland County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48073 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$90.76 typical visit price

range $58.04 – $177.36

Typical copayment $22.69 (range $14.51 – $44.34)

Most-billed visit code 99203

Established Patient

$102.35 typical visit price

range $18.32 – $143.49

Typical copayment $25.58 (range $4.58 – $35.87)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

AMIT BAHL MD, MPH

Emergency Medicine

3601 W 13 MILE RD, WILLIAM BEAUMONT HOSPITAL
ROYAL OAK, MI 48073

Oakland County (248) 898-0575

CATHERINE LEE PA

Physician Assistant