OLUWASEUN JOHNSON-AKEJU M.D.
NPI 1164558599
Anesthesiology in Boston, MA

Q: What is Oluwaseun Johnson-akeju's NPI number?

The NPI number for Oluwaseun Johnson-akeju is 1164558599. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Q: What is Oluwaseun Johnson-akeju's specialty?

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

Active since February 27, 2007PECOS EnrolledAccepts Medicare Assignment

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BOSTON, MA 02114(617) 726-3030 Get Directions Write a Review

NPPES record last updated: December 19, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Oluwaseun Johnson-akeju M.d. NPPES

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

OLUWASEUN JOHNSON-AKEJU M.D. (NPI 1164558599) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (L-228639) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1164558599

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameOLUWASEUN JOHNSON-AKEJUCredential: M.D.

Location AddressMASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREETBoston, MA 02114

Mailing AddressMassachusetts General Hospital, 55 Fruit StreetBoston, MA 02114 · (617) 726-3030

Phone(617) 726-3030

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateFebruary 27, 2007

Last NPPES UpdateDecember 19, 2024

NPPES CertifiedDecember 19, 2024

✔ NPI 1164558599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in MA · L-228639

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.

MASSACHUSETTS GENERAL HOSPITAL, Boston, MA 02114

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Secondary Practice Location 1

Location 175 Francis StBoston, MA 02115-6106 · Phone (617) 726-3030

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

Oluwaseun Johnson-akeju M.d. 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 ID6709918352

PECOS Enrollment IDI20100716000247

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

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

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.

KAITLYN MY-TU LAM MBBS

Internal Medicine (Cardiovascular Disease)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 724-7738

ALAKA RAY M.D.

Internal Medicine

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2066

MEGHAN E SISE M.D.

Internal Medicine (Nephrology)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2862

HUGH G AUCHINCLOSS M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2000

ANGELA M. JACQUES MD

Pediatrics

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 726-2066

NICOLE J LOOK-HONG MD, MSC

Surgery (Surgical Oncology)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 724-3868

CORINNA M ELLIOTT MA

Student in an Organized Health Care Education/Training Program

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 724-5600

KIRAN J AGARWAL-HARDING MD

Orthopaedic Surgery

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 726-2942

ADELINE GOSS MD

Internal Medicine

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 643-0596

KENDRICK M SHAW MD, PHD

Anesthesiology

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 726-3030

JOSHUA M SIEWERT MD,MBA

Internal Medicine

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 643-0596

CRISTINA CUSIN MD

Psychiatry & Neurology (Psychiatry)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2066

PARSIA A VAGEFI MD

Surgery

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2066

ANNE HODGES LIGHT MD

Pediatrics

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2066

DR. HILLARY R. KELLY MD

Radiology (Diagnostic Radiology)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, GRB-273A
BOSTON, MA 02114

Suffolk County (617) 726-8320

GARRETT M CHINN M.D.

Internal Medicine

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2862

RUTH A DELANEY MD

Orthopaedic Surgery

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2800

KELLY E IRWIN M.D.

Psychiatry & Neurology (Psychiatry)

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Suffolk County (617) 726-2000

SHIRI B FEINGOLD M.D.

Internal Medicine

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 726-2865

NILAY K PATEL MD

Internal Medicine

MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

Suffolk County (617) 726-2865

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 Oluwaseun Johnson-akeju's NPI number?

The NPI number for Oluwaseun Johnson-akeju is 1164558599. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is Oluwaseun Johnson-akeju located?

Oluwaseun Johnson-akeju practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-3030.

What is Oluwaseun Johnson-akeju's specialty?

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

Is Oluwaseun Johnson-akeju enrolled in Medicare?

Yes. Oluwaseun Johnson-akeju 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 Oluwaseun Johnson-akeju affiliated with any hospitals?

According to CMS data, Oluwaseun Johnson-akeju is affiliated with Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Oluwaseun Johnson-akeju was last updated on December 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.