Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEPHEN J O'BRIEN ORTHOPAEDIC SURGEON
NPI 1720002686
Neuromusculoskeletal Medicine, Sports Medicine in New York, NY

Active since July 26, 2006PECOS Enrolled
75/100
CMS Quality Rating
535 E 70TH ST, NEW YORK, NY 10021(212) 606-1011(212) 472-8024 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 7, 2026, Mar 30, 2021 (2 updates tracked since 2021).

About Dr. Stephen J O'brien Orthopaedic Surgeon NPPES

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

DR. STEPHEN J O'BRIEN ORTHOPAEDIC SURGEON (NPI 1720002686) is an individual neuromusculoskeletal medicine, sports medicine provider in New York, New York, licensed in New York (168755-1) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Hospital For Special Surgery, and is a graduate of University Of Virginia School Of Medicine (1981).

NPPES Registry Identity

NPI1720002686
Entity TypeIndividualMale
Primary Taxonomy204C00000X
Provider Legal NameDR. STEPHEN J O'BRIENCredential: ORTHOPAEDIC SURGEON
Location Address535 E 70TH STNew York, NY 10021-4872
Mailing Address535 E 70th StNew York, NY 10021-4872
Fax(212) 472-8024
Sole ProprietorYes
Medical School CMSUniversity Of Virginia School Of MedicineGraduated 1981
Enumeration DateJuly 26, 2006
Last NPPES UpdateOctober 7, 20262 updates tracked since enumeration
NPPES CertifiedOctober 7, 2026
✔ NPI 1720002686 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeuromusculoskeletal Medicine, Sports MedicineAllopathic & Osteopathic Physicians
Taxonomy Code204C00000X
License✔ Licensed in NY · 168755-1
Definition
A Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine physician trained to be responsible for the continuous care in the field of sports medicine encompasses increased knowledge and understanding of osteopathic principles and practice and heightened technical skills of osteopathic manipulative medicine and integrates each of these into the management of the individual engaged in physical exercise (sports) whether as an individual or in team participation. Source: American Osteopathic Association Additional Resources: AOA Osteopathic Board Certification in Neuromusculoskeletal Medicine; https://certification.osteopathic.org/sports-medicine/
535 E 70TH ST, New York, NY 10021

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

Dr. Stephen J O'brien Orthopaedic Surgeon 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 ID5294786224
PECOS Enrollment IDI20050207000667
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.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, lidocaine hcl for intravenous infusion, 10 mg J2001
Lidocaine HCL is a medication used to decrease pain or discomfort. In this procedure, it's given through an IV infusion, which means it's slowly injected into your vein. It's often used during minor surgeries or procedures to help keep you comfortable.
755 services34 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
333 services121 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
219 services171 patients
Injection, methylprednisolone acetate, 40 mg J1030
Methylprednisolone acetate is a medication given through an injection. It's a type of corticosteroid, which reduces inflammation and immune responses. It can be used to treat various conditions like arthritis, allergies, and skin diseases. This dose is 40 mg.
160 services51 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
96 services96 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
33 services30 patients

Hospital Affiliations CMS Care Compare

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

Hospital For Special Surgery

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330270
Location535 East 70th StreetNew York, NY 10021 · New York County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10021 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
$102.04 typical visit price
range $65.69 – $198.19
Typical copayment $25.51 (range $16.42 – $49.54)
Most-billed visit code 99203
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Reported Quality Measures

Risk-standardized complication rate (RSCR) following elective primary total hip arthroplasty (THA) and/or total knee arthroplasty (TKA) for Merit-based Incentive Payment System (MIPS)
Lower rates are better for this measure.
0.03%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf L3670
DME-Orthotic Devices · category DF000N
2 suppliers15 claims15 services$102.86 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Physician Assistant (Surgical)
535 E 70TH ST
NEW YORK, NY 10021
Anesthesiology
535 E 70TH ST
NEW YORK, NY 10021
Specialist/Technologist (Athletic Trainer)
535 E 70TH ST
NEW YORK, NY 10021
Speech-Language Pathologist
535 E 70TH ST
NEW YORK, NY 10021
Anesthesiology
535 E 70TH ST
NEW YORK, NY 10021
Physical Therapist
535 E 70TH ST
NEW YORK, NY 10021
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
535 E 70TH ST
NEW YORK, NY 10021
Physician Assistant
535 E 70TH ST
NEW YORK, NY 10021

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 Stephen O'brien's NPI number?

The NPI number for Stephen O'brien is 1720002686. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Stephen O'brien located?

Stephen O'brien practices at 535 E 70th St, New York, NY 10021. The listed phone number is (212) 606-1011.

What is Stephen O'brien's specialty?

The primary specialty registered for this NPI is Neuromusculoskeletal Medicine, Sports Medicine with taxonomy code 204C00000X.

Is Stephen O'brien enrolled in Medicare?

Yes. Stephen O'brien 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.

Is Stephen O'brien affiliated with any hospitals?

According to CMS data, Stephen O'brien is affiliated with Hospital For Special Surgery.

When was this NPI record last updated?

The NPPES record for Stephen O'brien was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.