DR. SOLOMON O AJASIN MD
NPI 1639750086
Emergency Medicine in Boston, MA
About Dr. Solomon O Ajasin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SOLOMON O AJASIN MD (NPI 1639750086) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (1023521) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and is a graduate of New York Medical College (2021).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Solomon O Ajasin 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.
Medicare Billing Reassignments
4Medicare enrollment records show Solomon Ajasin reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 clinicians in this Medicare group
Quincy, MA 02169
- Reassigned Medicare billing, Massachusetts enrollment
- 62 clinicians in this Medicare group
Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 671 clinicians in this Medicare group
Norwell, MA 02061
- Reassigned Medicare billing, Massachusetts enrollment
- 346 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
South Shore Hospital
Acute Care Hospitals · South Weymouth, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Solomon Ajasin's NPI number?
The NPI number for Solomon Ajasin is 1639750086. It was assigned to this individual provider in the NPPES registry on April 17, 2021.
Where is Solomon Ajasin located?
Solomon Ajasin practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-5724.
What is Solomon Ajasin's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Solomon Ajasin enrolled in Medicare?
Yes. Solomon Ajasin 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.
Which organizations bill Medicare for Solomon Ajasin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Solomon Ajasin reassigns Medicare benefits to 4 organizations: Children's Hospital Pediatric Associates, Inc (Boston, MA), South Shore Health Express, Inc (Quincy, MA), Coastal Medical Associates (Weymouth, MA) and South Shore Medical Center, Inc. (Norwell, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Solomon Ajasin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Solomon Ajasin accept?
Health plans from Taro Health list Solomon Ajasin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Solomon Ajasin affiliated with any hospitals?
According to CMS data, Solomon Ajasin is affiliated with South Shore Hospital.
When was this NPI record last updated?
The NPPES record for Solomon Ajasin was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Solomon O Ajasin, MD · NPI 1639750086
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 17, 2021.
## Identity
- **NPI:** 1639750086 (Entity type: Individual)
- **Enumerated:** April 17, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1023521 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-5724
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA); South Shore Health Express, Inc (NPI 1144713199, Quincy, MA); Coastal Medical Associates (NPI 1932175684, Weymouth, MA); South Shore Medical Center, Inc. (NPI 1669411856, Norwell, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2021
## Record status
- **NPPES last updated:** May 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1639750086) · Data from the CMS NPPES public registry.