Are you John F. O'Brien, A.P.R.N.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileJohn F. O'Brien, A.P.R.N. is a certified registered nurse anesthetist (crna) practicing in Danbury, CT. John is also listed as specializing in certified registered nurse anesthetist. According to Medicare claims data, John cared for 96 Medicare patients across 97 services. The services billed most often include anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand, anesthesia for other procedure on forearm, wrist, or hand bones, and anesthesia for open or endoscopic total shoulder joint replacement. This provider record is associated with NPI 1043336258.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
24 HOSPITAL AVE
Danbury, CT 06810
Within Certified Registered Nurse Anesthetist generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Acute Pain
Anxiety & Phobias
Face & Jaw
Head & Face
Joint Pain
Joints & Soft Tissue
Maternity
Mental Health
Nerve Pain
Pain
Pelvic & Abdominal
Sedation & Phobias
Spine & Back
Consultations
General Anesthesia
Infusion Therapy
Injections
Joint Injections
Joints & Soft Tissue
Maternity
Nerve Blocks
Pain Management
Pain Relief Procedures
Sedation
Specialized Care
Surgical Pain Relief
Vascular Access
97 services · 96 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand | Anaesthesia | 01810 |
48 | More than most peers in Certified Registered Nurse… |
| Anesthesia for other procedure on forearm, wrist, or hand bones | Anaesthesia | 01830 |
24 | More often than most peers in Certified Registered Nurse… |
| Anesthesia for open or endoscopic total shoulder joint replacement | Anaesthesia | 01638 |
14 | As often as other peers in Certified Registered Nurse… |
| Anesthesia for total hip replacement | Anaesthesia | 01214 |
11 | Less often than most peers in Certified Registered Nurse… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
John F. O'Brien is a certified registered nurse anesthetist (crna) in Danbury, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
John F. O'Brien is listed at 24 Hospital Ave, Danbury, CT 06810. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 797-7118. Contact the office directly to confirm availability and scheduling.
NPI registry
John F. O'Brien's National Provider Identifier is 1043336258. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
John F. O'Brien attended Other, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
John F. O'Brien has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, John F. O'Brien provides treatments such as anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand and anesthesia for other procedure on forearm, wrist, or hand bones. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by John F. O'Brien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.