Dr. Oluwaseun Johnson-Akeju, MD
- Medicare services, 2019
- 13
- Hospital affiliations
- 1
- Industry payments
- $3,334
- Medical groups
- 3
- State license
- 1
- Practice address
- Massachusetts General Hospital, Boston, MA 02114
- Practice phone
- Call (617) 724-9410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The General Hospital - Boston (Massachusetts General Hospital)
Multi-specialty group site · Boston, Massachusetts
Find Dr. Johnson-Akeju's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Oluwaseun Johnson-Akeju is an anesthesiologist in Boston, Massachusetts
Dr. Johnson-Akeju practices at The General Hospital - Boston (Massachusetts General Hospital) in Boston, Massachusetts.
Dr. Johnson-Akeju's NPI, 1164558599, was assigned on February 27, 2007. Dr. Johnson-Akeju graduated from Rutgers New Jersey Medical School in 2006. Dr. Johnson-Akeju holds Massachusetts license L-228639.
- NPI
- 1164558599NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709918352
- NPI enumeration date
- February 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 724-9410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Oluwaseun Johnson-Akeju practices at 2 locations in Boston, Massachusetts
Dr. Johnson-Akeju's primary practice is The General Hospital - Boston (Massachusetts General Hospital), at Massachusetts General Hospital, Boston, MA 02114. The practice phone is (617) 724-9410. The NPI Registry lists Dr. Johnson-Akeju's practice address as 55 Fruit St, Boston, MA 02114.
- The General Hospital - Boston (Massachusetts General Hospital)PrimaryMassachusetts General Hospital, Boston, MA 02114Phone(617) 724-9410
- NPI Registry address55 Fruit St, Boston, MA 02114 · Suffolk CountyPhone(617) 726-3030
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Oluwaseun Johnson-Akeju is affiliated with 4 sites of care and 3 medical groups
Dr. Johnson-Akeju's primary practice is The General Hospital - Boston (Massachusetts General Hospital) in Boston, Massachusetts. Dr. Johnson-Akeju is also affiliated with Brigham and Women's Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Johnson-Akeju to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Oluwaseun Johnson-Akeju's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson-Akeju practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The General Hospital - Boston (Massachusetts General Hospital) | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Oluwaseun Johnson-Akeju is one of 1,552 anesthesiologists in Massachusetts
Anesthesiology is Dr. Johnson-Akeju's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Johnson-Akeju is licensed in Massachusetts.
Specialties and state licenses
- Anesthesiology, MassachusettsPrimary
Anesthesiologists near Dr. Johnson-Akeju
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Oluwaseun Johnson-Akeju billed Medicare for 13 services in 2019
CMS data shows 13 Medicare services from Dr. Johnson-Akeju across 1 procedure code in 2019. Medicare paid $6,482 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson-Akeju's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Anesthesia
- 2018: 182019: 1328%
- Surgery
- 2018: 182019: 0100%
Dr. Johnson-Akeju compared with the Massachusetts median for anesthesiologists, 2019
- Dr. Johnson-Akeju
- Massachusetts median
- Medicare services
- 13vs 12690% below
Medians across 1,366 anesthesiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Johnson-Akeju's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson-Akeju and other anesthesiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
How Dr. Oluwaseun Johnson-Akeju takes part in Medicare
Dr. Johnson-Akeju accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Oluwaseun Johnson-Akeju received $3,334 in industry payments in 2018
CMS Open Payments shows 2 general payments to Dr. Johnson-Akeju from 1 drug or device company in 2018. Speaker and faculty fees make up the largest share, 100% of the total. Masimo Corporation paid the most, $3,334.
Companies that paid Dr. Johnson-Akeju the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Oluwaseun Johnson-Akeju graduated from Rutgers New Jersey Medical School
Dr. Johnson-Akeju graduated from Rutgers New Jersey Medical School in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Oluwaseun Johnson-Akeju's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Oluwaseun Johnson-Akeju
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Oluwaseun Johnson-Akeju's NPI number?
Dr. Oluwaseun Johnson-Akeju's NPI number is 1164558599. It was assigned on February 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Oluwaseun Johnson-Akeju?
Dr. Oluwaseun Johnson-Akeju is an anesthesiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Oluwaseun Johnson-Akeju practice?
Dr. Johnson-Akeju practices at Massachusetts General Hospital, Boston, MA 02114. Dr. Johnson-Akeju also practices at 55 Fruit St, Boston, MA 02114. Dr. Johnson-Akeju's primary practice is The General Hospital - Boston (Massachusetts General Hospital) in Boston, Massachusetts. Dmand AI also links Dr. Johnson-Akeju to 2 group practices and clinics and 2 medical groups.
What is Dr. Oluwaseun Johnson-Akeju's office phone number?
The practice phone on file for Dr. Johnson-Akeju is (617) 724-9410.
What is Dr. Oluwaseun Johnson-Akeju's medical license number?
Dr. Johnson-Akeju holds Massachusetts license L-228639.
Which hospitals is Dr. Oluwaseun Johnson-Akeju affiliated with?
Dr. Johnson-Akeju is affiliated with Brigham and Women's Hospital.
What medical group is Dr. Oluwaseun Johnson-Akeju part of?
Dr. Johnson-Akeju is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Johnson-Akeju to 2 more medical groups.
Does Dr. Oluwaseun Johnson-Akeju accept Medicare?
Yes. CMS data shows Dr. Johnson-Akeju billed Medicare for 13 services in 2019, and Dr. Johnson-Akeju accepts Medicare assignment.
What services does Dr. Oluwaseun Johnson-Akeju bill to Medicare?
In 2019, Dr. Johnson-Akeju's most billed Medicare services were anesthesia (00210).
Where did Dr. Oluwaseun Johnson-Akeju go to medical school?
Dr. Johnson-Akeju graduated from Rutgers New Jersey Medical School in 2006.
Has Dr. Oluwaseun Johnson-Akeju received payments from drug or device companies?
CMS Open Payments shows $3,334 in general payments to Dr. Johnson-Akeju from 1 company from 2018 to 2018. The largest total came from Masimo Corporation.
How long has Dr. Oluwaseun Johnson-Akeju been practicing?
Dr. Johnson-Akeju graduated from medical school in 2006, 20 years ago.
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