ALEXANDER MILES JENSON
NPI 1124450317
Emergency Medicine in Springfield, MA
About Alexander Miles Jenson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER MILES JENSON (NPI 1124450317) is an individual emergency medicine provider in Springfield, Massachusetts, licensed in Massachusetts (1026133) and active in the NPI registry since July 2013. He is enrolled in Medicare PECOS, is affiliated with Baystate Medical Center, and is a graduate of Johns Hopkins University School Of Medicine (2015).
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
Alexander Miles Jenson 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
5Medicare enrollment records show Alexander Jenson reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 clinicians in this Medicare group
Belcamp, MD 21017
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 234 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 108 clinicians in this Medicare group
Tohatchi, NM 87325
- Reassigned Medicare billing, Texas enrollment
- 618 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.
Areas of Expertise CMS Part B claims 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baystate Medical Center
Acute Care Hospitals · Springfield, MAGallup Indian Medical Center
Acute Care Hospitals · Gallup, NMPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SPRINGFIELD, MA 01107
SPRINGFIELD, MA 01107
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 Alexander Jenson's NPI number?
The NPI number for Alexander Jenson is 1124450317. It was assigned to this individual provider in the NPPES registry on July 30, 2013.
Where is Alexander Jenson located?
Alexander Jenson practices at 759 Chestnut St # S6538, Springfield, MA 01107. The listed phone number is (413) 794-3233.
What is Alexander Jenson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alexander Jenson enrolled in Medicare?
Yes. Alexander Jenson 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 Alexander Jenson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Jenson reassigns Medicare benefits to 5 organizations: Baystate Medical Practices, Inc (Springfield, MA), Johns Hopkins University (Belcamp, MD), University Of Maryland Emergency Medicine Associates, PA (Baltimore, MD), University Of Maryland Midtown Health Inc (Baltimore, MD) and Dhhs, Phs, Naihs, Gallup Indian Medical Center (Tohatchi, NM). 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 Alexander Jenson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Jenson accept?
Health plans from Taro Health list Alexander Jenson 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 Alexander Jenson affiliated with any hospitals?
According to CMS data, Alexander Jenson is affiliated with Baystate Medical Center and Gallup Indian Medical Center.
When was this NPI record last updated?
The NPPES record for Alexander Jenson was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Alexander Miles Jenson · NPI 1124450317
Emergency Medicine physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since July 30, 2013.
## Identity
- **NPI:** 1124450317 (Entity type: Individual)
- **Enumerated:** July 30, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1026133 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 759 CHESTNUT ST # S6538, Springfield, MA 01107-1619
- **Phone:** (413) 794-3233 · **Fax:** (413) 794-9060
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Baystate Medical Practices, Inc (NPI 1548205909, Springfield, MA); Johns Hopkins University (NPI 1376342774, Belcamp, MD); University Of Maryland Emergency Medicine Associates, PA (NPI 1811704208, Baltimore, MD); University Of Maryland Midtown Health Inc (NPI 1710347729, Baltimore, MD); Dhhs, Phs, Naihs, Gallup Indian Medical Center (NPI 1902875594, Tohatchi, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** August 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1124450317) · Data from the CMS NPPES public registry.