STEPHEN V KLEIN MD
NPI 1154355212
Radiology - Diagnostic Radiology in Hartford, CT
About Stephen V Klein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN V KLEIN MD (NPI 1154355212) is an individual diagnostic radiology provider in Hartford, Connecticut, licensed in Connecticut (038376) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in East Hartford, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1983).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
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
Stephen V Klein 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
8Medicare enrollment records show Stephen Klein reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hartford, CT 06102
- Reassigned Medicare billing, Connecticut and Massachusetts enrollments
- 161 clinicians in this Medicare group
Wethersfield, CT 06109
- Reassigned Medicare billing, Connecticut and Massachusetts enrollments
- 167 clinicians in this Medicare group
Farmington, CT 06032
- Reassigned Medicare billing, Connecticut and Massachusetts enrollments
- 172 clinicians in this Medicare group
Tolland, CT 06084
- Reassigned Medicare billing, Connecticut and Massachusetts enrollments
- 169 clinicians in this Medicare group
Springfield, MA 01107
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Chelmsford Mri PC
- Also billed through NPI 1386662112 (Massachusetts)
- 99 clinicians in this Medicare group
Holyoke, MA 01040
- Reassigned Medicare billing, Massachusetts enrollment
- 241 clinicians in this Medicare group
East Bridgewater, MA 02333
- Reassigned Medicare billing, Massachusetts enrollment
- 111 clinicians in this Medicare group
Boston, MA 02116
- Reassigned Medicare billing, Massachusetts enrollment
- 138 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 11
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06106 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 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HARTFORD, CT 06106
HARTFORD, CT 06106
HARTFORD, CT 06106
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 Stephen Klein's NPI number?
The NPI number for Stephen Klein is 1154355212. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Stephen Klein located?
Stephen Klein practices at 85 Seymour St Ste 200, Hartford, CT 06106. The listed phone number is (860) 546-6589.
What is Stephen Klein's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Stephen Klein enrolled in Medicare?
Yes. Stephen Klein 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 Stephen Klein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Klein reassigns Medicare benefits to 8 organizations: Jefferson Radiology, PC (Hartford, CT), Connecticut Imaging Partners, LLC (Wethersfield, CT), Farmington Imaging Center, LLC (Farmington, CT), Tic, LLC (Tolland, CT), Chelmsford Mri, P.C. (Springfield, MA) and 3 more organizations, listed in the Medicare section above. 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 Stephen Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stephen Klein was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Stephen V Klein, MD · NPI 1154355212
Diagnostic Radiology physician in Hartford, Connecticut. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1154355212 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 038376 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 85 SEYMOUR ST STE 200, Hartford, CT 06106-5509
- **Phone:** (860) 546-6589 · **Fax:** (860) 560-2849
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Jefferson Radiology, PC (NPI 1396795951, Hartford, CT); Connecticut Imaging Partners, LLC (NPI 1740315761, Wethersfield, CT); Farmington Imaging Center, LLC (NPI 1275987802, Farmington, CT); Tic, LLC (NPI 1457702813, Tolland, CT); Chelmsford Mri, P.C. (NPI 1821435553, Springfield, MA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Albert Einstein College Of Medicine Of Yeshiva University, class of 1983
## Record status
- **NPPES last updated:** March 17, 2018
- **Other identifiers:** Medicaid 003066934 (CT); Medicaid 3047482 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1154355212) · Data from the CMS NPPES public registry.