Dr. Clive Lloyd Johnson, DO
- Medicare services, 2024
- 108
- Medicare patients, 2024
- 119
- Part D claims, 2024
- 35
- MIPS score, 2024
- 87
- Hospital affiliations
- 1
- Practice address
- 1 Hospital Plz, Stamford, CT 06902
- Practice phone
- Call (203) 276-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stamford Hospital
Stamford, Connecticut
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. Clive Lloyd Johnson is an internist in Stamford, Connecticut
Dr. Johnson practices at Stamford Hospital in Stamford, Connecticut.
Dr. Johnson's NPI, 1053500447, was assigned on October 22, 2007. Dr. Johnson graduated from Rutgers School of Dental Medicine in 2004. Dr. Johnson holds Connecticut license 047287.
- NPI
- 1053500447NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183713142
- NPI enumeration date
- October 22, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 276-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Clive Lloyd Johnson practices at Stamford Hospital in Stamford, Connecticut
Dr. Johnson's primary practice is Stamford Hospital, at 1 Hospital Plz, Stamford, CT 06902 in Western Ct County. The practice phone is (203) 276-1000.
- Stamford Hospital1 Hospital Plz, Stamford, CT 06902 · Western Ct CountyPhone(203) 276-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Clive Lloyd Johnson is affiliated with 2 sites of care and 3 medical groups
Dr. Johnson's primary practice is Stamford Hospital in Stamford, Connecticut. Dr. Johnson is also affiliated with Stamford Hospital. The medical group on file is Northeast Medical Group. Dmand AI also links Dr. Johnson to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Clive Lloyd Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stamford Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clive Lloyd Johnson is one of 2,189 internists in Connecticut
Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnson is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Johnson
Counts of internists 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. Clive Lloyd Johnson billed Medicare for 108 services in 2024
CMS data shows 108 Medicare services from Dr. Johnson across 2 procedure codes in 2024, for 119 Medicare patients. Medicare paid $14,069 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 892024: 10821%
Dr. Johnson compared with the Connecticut median for internists, 2024
- Dr. Johnson
- Connecticut median
- Medicare services
- 108vs 39072% below
- Medicare patients
- 119vs 17231% below
- Part D claims
- 16vs 34395% below
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Johnson's most billed Medicare procedure codes, 2024
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 and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clive Lloyd Johnson treated 119 Medicare patients in 2024, average age 80
CMS counts 119 Medicare patients who saw Dr. Johnson in 2024. The largest group is 75 to 84, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.27, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 45, with 32% women.
Dr. Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnson's Medicare patients by sex, 2024
- Women7261%
- Men4739%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease50%
- Arthritis49%
- Mood disorders48%
- Anxiety45%
- Depression45%
- Heart failure45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women32%
- Men66%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Clive Lloyd Johnson wrote 35 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 35 Medicare Part D claims for 13 patients. 86% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $93 in total drug cost. In 2018, CMS named 43 claims across 3 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic30 claims86%
- Brand-name and other5 claims14%
Dr. Johnson's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 432019: 1663%
Drugs named by CMS: 1 in 2019, 3 in 2018.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Clive Lloyd Johnson scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group. Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Johnson's MIPS scores, performance year 2024
- 87of 100Final score
- 84.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Clive Lloyd Johnson received $1,354 in industry payments from 2016 to 2025
CMS Open Payments shows 57 general payments to Dr. Johnson from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $722.
General payments to Dr. Johnson by program year, 2016 to 2025
Companies that paid Dr. Johnson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Clive Lloyd Johnson graduated from Rutgers School of Dental Medicine
Dr. Johnson graduated from Rutgers School of Dental Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Clive Lloyd Johnson'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Clive Lloyd Johnson
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. Clive Lloyd Johnson's NPI number?
Dr. Clive Lloyd Johnson's NPI number is 1053500447. It was assigned on October 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Clive Lloyd Johnson?
Dr. Clive Lloyd Johnson is an internist in Stamford, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Clive Lloyd Johnson practice?
Dr. Johnson practices at 1 Hospital Plz, Stamford, CT 06902. Dr. Johnson's primary practice is Stamford Hospital in Stamford, Connecticut. Dmand AI also links Dr. Johnson to 2 medical groups.
What is Dr. Clive Lloyd Johnson's office phone number?
The practice phone on file for Dr. Johnson is (203) 276-1000.
What is Dr. Clive Lloyd Johnson's medical license number?
Dr. Johnson holds Connecticut license 047287.
Which hospitals is Dr. Clive Lloyd Johnson affiliated with?
Dr. Johnson is affiliated with Stamford Hospital.
What medical group is Dr. Clive Lloyd Johnson part of?
Dr. Johnson is linked to Northeast Medical Group. Dmand AI links Dr. Johnson to 2 more medical groups.
Does Dr. Clive Lloyd Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 108 services in 2024, and Dr. Johnson accepts Medicare assignment.
What is Dr. Clive Lloyd Johnson's MIPS score?
Dr. Johnson's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Clive Lloyd Johnson see?
CMS counts 119 Medicare patients who saw Dr. Johnson in 2024, with an average age of 80.
Show 5 more questionsShow fewer questions
What services does Dr. Clive Lloyd Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were hospital inpatient care (99223) and hospital inpatient care (99222).
Where did Dr. Clive Lloyd Johnson go to medical school?
Dr. Johnson graduated from Rutgers School of Dental Medicine in 2004.
What drugs does Dr. Clive Lloyd Johnson prescribe most?
In 2019 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Topiramate.
Has Dr. Clive Lloyd Johnson received payments from drug or device companies?
CMS Open Payments shows $1,354 in general payments to Dr. Johnson from 8 companies from 2016 to 2025. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Clive Lloyd Johnson been practicing?
Dr. Johnson graduated from medical school in 2004, 22 years ago.
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