CLIVE LLOYD JOHNSON D.O
NPI 1053500447
Internal Medicine in Stamford, CT
About Clive Lloyd Johnson D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CLIVE LLOYD JOHNSON D.O (NPI 1053500447) is an individual internal medicine provider in Stamford, Connecticut, licensed in Connecticut (047287) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS and is a graduate of Rutgers School Of Dental Medicine (2004).
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
Clive Lloyd Johnson D.o 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
3Medicare enrollment records show Clive Johnson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stamford, CT 06901
- Reassigned Medicare billing, Connecticut enrollment
- 22 clinicians in this Medicare group
Stamford, CT 06907
- Reassigned Medicare billing, Connecticut enrollment
- 496 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Northeast Medical Group Inc
- 1,824 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06904 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.
STAMFORD, CT 06904
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 Clive Johnson's NPI number?
The NPI number for Clive Johnson is 1053500447. It was assigned to this individual provider in the NPPES registry on October 22, 2007.
Where is Clive Johnson located?
Clive Johnson practices at One Hospital Plaza, Stamford, CT 06904. The listed phone number is (203) 276-7298.
What is Clive Johnson's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Clive Johnson enrolled in Medicare?
Yes. Clive Johnson 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 Clive Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clive Johnson reassigns Medicare benefits to 3 organizations: Liberation Programs Inc (Stamford, CT), Stamford Health Medical Group Inc (Stamford, CT) and Mill Hill Medical Consultants Inc (Greenwich, CT). 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 Clive Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Clive Johnson accept?
Health plans from Anthem Blue Cross and Blue Shield list Clive Johnson 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.
When was this NPI record last updated?
The NPPES record for Clive Johnson was last updated on April 15, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Clive Lloyd Johnson, D.O · NPI 1053500447
Internal Medicine physician in Stamford, Connecticut. Individual provider, active in the CMS NPPES registry since October 22, 2007.
## Identity
- **NPI:** 1053500447 (Entity type: Individual)
- **Enumerated:** October 22, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 047287 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** ONE HOSPITAL PLAZA, Stamford, CT 06904
- **Phone:** (203) 276-7298 · **Fax:** (203) 355-4842
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Liberation Programs Inc (NPI 1649390733, Stamford, CT); Stamford Health Medical Group Inc (NPI 1154633980, Stamford, CT); Mill Hill Medical Consultants Inc (NPI 1245249549, Greenwich, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers School Of Dental Medicine, class of 2004
## Record status
- **NPPES last updated:** April 15, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1053500447) · Data from the CMS NPPES public registry.