DR. MICHAEL G FITZSIMONS MD
NPI 1588632848
Anesthesiology in Boston, MA

Q: What is Michael Fitzsimons's NPI number?

The NPI number for Michael Fitzsimons is 1588632848. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Q: What is Michael Fitzsimons's specialty?

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

Active since March 10, 2006PECOS EnrolledAccepts Medicare Assignment

55 FRUIT STREET, GRB 406E, BOSTON, MA 02114(617) 726-8808 Get Directions Write a Review

NPPES record last updated: September 16, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Michael G Fitzsimons Md NPPES

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

DR. MICHAEL G FITZSIMONS MD (NPI 1588632848) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (206890) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Other (1993).

NPPES Registry Identity

NPI1588632848

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. MICHAEL G FITZSIMONSCredential: MD

Location Address55 FRUIT STREET, GRB 406EBoston, MA 02114-2696

Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894

Phone(617) 726-8808

Sole ProprietorYes

Medical School CMSOtherGraduated 1993

Enumeration DateMarch 10, 2006

Last NPPES UpdateSeptember 16, 2014

✔ NPI 1588632848 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in MA · 206890

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.

Also ListedAnesthesiology · Critical Care MedicineTaxonomy 207LC0200X · License 206890 (MA)

55 FRUIT STREET, Boston, MA 02114

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Other Identifiers 5

Medicare UPINH23535

Medicaid0114961MA

OtherJ22836MA · Bcbs Ma

Medicare ID-Type UnspecifiedA31494MA

Other206890MA · Tufts Health Plan

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. Michael G Fitzsimons 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 ID6103008636

PECOS Enrollment IDI20110304000458

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 7

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 procedure to correct abnormal heart rhythm 00410

Anesthesia for a procedure to correct abnormal heart rhythm ensures you won't feel pain during the treatment. It can be general, where you're completely asleep, or local, numbing only a specific area. Your vital signs are monitored to ensure safety during the procedure.

48 services48 patients

Anesthesia for procedure on heart and large blood vessels 00560

Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.

45 services45 patients

Insertion of probe in esophagus for heart ultrasound 93313

This procedure involves placing a small probe in your esophagus. The probe, connected to an ultrasound machine, helps capture detailed images of your heart. This non-surgical, minimally invasive procedure provides valuable information about your heart's structure and function.

43 services42 patients

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

35 services35 patients

Anesthesia for procedure to assess heart electrical activity 00537

Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.

28 services27 patients

Anesthesia for insertion of permanent heart pacemaker 00530

Anesthesia for a permanent heart pacemaker insertion helps to ensure comfort and calmness during the procedure. It's typically a local anesthetic, numbing the area where the pacemaker is inserted. Sedation may also be given to help you relax. You'll be awake, but may not remember the procedure.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220110

Location75 Francis StreetBoston, MA 02115 · Suffolk 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.

KUI TOH GERARD LEONG M.D.

Internal Medicine (Cardiovascular Disease)

55 FRUIT STREET, MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114

Suffolk County (617) 726-8862

MS. JACQUELINE BANGO LICSW

Social Worker (Clinical)

55 FRUIT STREET, FOUNDERS BUILDING SUITE 880
BOSTON, MA 02114

Suffolk County (617) 643-8281

SARA ELIZABETH GROSSLEIN PA

Physician Assistant

55 FRUIT STREET, WHITE 1
BOSTON, MA 02114

Suffolk County (617) 724-4100

JEFFREY M ELLENBOGEN M.D.

Psychiatry & Neurology (Neurology)

55 FRUIT STREET, WANG 720 (NEUROLOGY)
BOSTON, MA 02114

Suffolk County (617) 724-7419

DR. NANCY LEE HARRIS MD

Pathology (Anatomic Pathology & Clinical Pathology)

55 FRUIT STREET, WRN 2 PATHOLOGY ASSOCIATES
BOSTON, MA 02114

Suffolk County (617) 726-5155

DR. STANLEY YANG SHAW MD PHD

Internal Medicine (Cardiovascular Disease)

55 FRUIT STREET, YAW 5 CARDIAC UNIT ASSOCIATES
BOSTON, MA 02114

Suffolk County (617) 724-6750

LEONARDO V RIELLA M.D., PHD

Internal Medicine

55 FRUIT STREET, WHITE 5
BOSTON, MA 02114

Suffolk County (617) 726-5050

SUSAN MAHER CRNA

Nurse Anesthetist, Certified Registered

55 FRUIT STREET, CLN 309 MGH ANESTHESIA ASSOCIATES
BOSTON, MA 02114

Suffolk County (617) 726-3030

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 Michael Fitzsimons's NPI number?

The NPI number for Michael Fitzsimons is 1588632848. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is Michael Fitzsimons located?

Michael Fitzsimons practices at 55 Fruit Street Grb 406E, Boston, MA 02114. The listed phone number is (617) 726-8808.

What is Michael Fitzsimons's specialty?

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

Is Michael Fitzsimons enrolled in Medicare?

Yes. Michael Fitzsimons 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 Michael Fitzsimons affiliated with any hospitals?

According to CMS data, Michael Fitzsimons is affiliated with Massachusetts General Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Michael Fitzsimons was last updated on September 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.