DR. MARGARET M O'BRIEN MD
NPI 1023048964
Anesthesiology in Bryn Mawr, PA

Active since July 04, 2006PECOS EnrolledAccepts Medicare Assignment
130 S BRYN MAWR AVE, BRYN MAWR, PA 19010(610) 526-3000 Get Directions Write a Review

NPPES record last updated: April 22, 2019. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Margaret M O'brien Md NPPES

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

DR. MARGARET M O'BRIEN MD (NPI 1023048964) is an individual anesthesiology provider in Bryn Mawr, Pennsylvania, licensed in Pennsylvania (MD051635L) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Bryn Mawr Hospital, and is a graduate of Icahn School Of Medicine At Mount Sinai (1990).

NPPES Registry Identity

NPI1023048964
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. MARGARET M O'BRIENCredential: MD
Location Address130 S BRYN MAWR AVEBryn Mawr, PA 19010-3121
Mailing Address744 W Michigan AveJackson, MI 49201-1909 · (517) 787-6440 · Fax (517) 787-4146
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1990
Enumeration DateJuly 4, 2006
Last NPPES UpdateApril 22, 2019
NPI 1023048964 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License Licensed in PA · MD051635L
Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

130 S BRYN MAWR AVE, Bryn Mawr, PA 19010

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. Margaret M O'brien Md 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 ID2062691777
PECOS Enrollment IDI20110127000395
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 5

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.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
60 services59 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
32 services32 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
28 services28 patients
Anesthesia for other procedure on skin of arms, legs, and front body 00400
Anesthesia for procedures on the skin of your arms, legs, and front body is a service that numbs the area being treated. This ensures you don't feel pain during procedures like biopsies, stitches, or minor surgeries. It's administered through a small injection or a topical cream.
17 services17 patients
Anesthesia for procedure on anus and rectum 00902
Anesthesia for procedures on the anus and rectum ensures comfort during medical procedures. It involves the administration of medication to numb the area or induce sleep, so you don't feel pain or discomfort. This helps doctors perform necessary procedures smoothly and effectively.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Bryn Mawr Hospital

Acute Care Hospitals · Bryn Mawr, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390139
Location130 South Bryn Mawr AveBryn Mawr, PA 19010 · Montgomery County
Emergency services Birthing friendly

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.

Hospitalist
130 S BRYN MAWR AVE, SUITE H321
BRYN MAWR, PA 19010
Nurse Practitioner (Adult Health)
130 S BRYN MAWR AVE, SUITE H321
BRYN MAWR, PA 19010
Pediatrics
130 S BRYN MAWR AVE
BRYN MAWR, PA 19010
Physician Assistant
130 S BRYN MAWR AVE
BRYN MAWR, PA 19010
Podiatrist (Foot & Ankle Surgery)
130 S BRYN MAWR AVE
BRYN MAWR, PA 19010
Urology
130 S BRYN MAWR AVE
BRYN MAWR, PA 19010
Nurse Anesthetist, Certified Registered
130 S BRYN MAWR AVE, BRYN MAWR HOSPITAL ANESTHESIA DEPT.
BRYN MAWR, PA 19010
Physician Assistant
130 S BRYN MAWR AVE
BRYN MAWR, PA 19010

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 Margaret O'brien's NPI number?

The NPI number for Margaret O'brien is 1023048964. It was assigned to this individual provider in the NPPES registry on July 4, 2006.

Where is Margaret O'brien located?

Margaret O'brien practices at 130 S Bryn Mawr Ave, Bryn Mawr, PA 19010. The listed phone number is (610) 526-3000.

What is Margaret O'brien's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Margaret O'brien enrolled in Medicare?

Yes. Margaret 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 Margaret O'brien affiliated with any hospitals?

According to CMS data, Margaret O'brien is affiliated with Bryn Mawr Hospital.

When was this NPI record last updated?

The NPPES record for Margaret O'brien was last updated on April 22, 2019. NPI Profile syncs with the weekly NPPES data releases published by CMS.