Dr. Fielding Johnson III, MD
- Medicare services, 2024
- 249
- Medicare patients, 2024
- 89
- Part D claims, 2024
- 8,869
- Industry payments
- $43,022
- Affiliated sites
- 3
- Practice address
- 30 Jordan Ln, Wethersfield, CT 06109
- Practice phone
- Call (860) 263-0253
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prime Healthcare
Wethersfield, Connecticut
Find Dr. Johnson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Fielding Johnson III is a pulmonologist in Wethersfield, Connecticut
Dr. Johnson practices at Prime Healthcare in Wethersfield, Connecticut.
Dr. Johnson's NPI, 1346336237, was assigned on October 5, 2006. Dr. Johnson holds Connecticut license 038695.
- NPI
- 1346336237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345140927
- NPI enumeration date
- October 5, 2006
- NPI status
- Active
- Practice phone
- (860) 263-0253
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Fielding Johnson III practices at Prime Healthcare in Wethersfield, Connecticut
Dr. Johnson's primary practice is Prime Healthcare, at 30 Jordan Ln, Wethersfield, CT 06109 in Capitol County. The practice phone is (860) 263-0253.
- Prime Healthcare30 Jordan Ln, Wethersfield, CT 06109 · Capitol CountyPhone(860) 263-0253
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Fielding Johnson III is affiliated with 4 sites of care and 5 medical groups
Dr. Johnson's primary practice is Prime Healthcare in Wethersfield, Connecticut. The medical group on file is Prime Healthcare, PC. Dmand AI also links Dr. Johnson to 4 more medical groups, 1 physician office, 1 group practice or clinic and 1 skilled nursing facility, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Fielding Johnson III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prime Healthcare | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fielding Johnson III is one of 239 pulmonologists in Connecticut
Pulmonary disease is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Johnson is licensed in Connecticut.
Specialties and state licenses
- Pulmonary disease, ConnecticutPrimary
Pulmonologists near Dr. Johnson
Counts of pulmonologists 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. Fielding Johnson III billed Medicare for 249 services in 2024
CMS data shows 249 Medicare services from Dr. Johnson across 5 procedure codes in 2024, for 89 Medicare patients. Medicare paid $20,465 for them.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2152024: 2112%
- Tests and treatments
- 2023: 612024: 3838%
Where Dr. Johnson's Medicare services took place, 2024
- In an office17470%
- In a facility7530%
Dr. Johnson compared with the Connecticut median for pulmonologists, 2024
- Dr. Johnson
- Connecticut median
- Medicare services
- 249vs 52853% below
- Medicare patients
- 89vs 24764% below
- Part D claims
- 8,180vs 62313.1 times
Medians across 239 pulmonologists 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fielding Johnson III treated 89 Medicare patients in 2024, average age 73
CMS counts 89 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 35 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 57% are also on Medicaid. Their average risk score is 1.93, 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 69, with 48% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women4854%
- Men4146%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Anxiety52%
- Mood disorders52%
- Arthritis46%
- Diabetes46%
- Depression44%
- COPD38%
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 69
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Fielding Johnson III wrote 8,869 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 8,869 Medicare Part D claims for 272 patients. 77% of them were for generic drugs. CMS names the drug for 8,180 of them, across 157 drugs with 11 or more claims each, at $1,023,276 in total drug cost. In 2023, CMS named 7,671 claims across 143 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic6,854 claims77%
- Brand-name1,995 claims22%
- Other20 claims0%
Dr. Johnson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Johnson's Part D claims, 2024
- Opioids4%379 of 8,869 claims
- Antibiotics2%155 of 8,869 claims
- Antipsychotics, patients 65 and over3%234 of 8,869 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7,6712024: 8,1807%
Drugs named by CMS: 157 in 2024, 143 in 2023.
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
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Dr. Fielding Johnson III received $43,022 in industry payments from 2016 to 2025
CMS Open Payments shows 1,541 general payments to Dr. Johnson from 95 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. GlaxoSmithKline, LLC. paid the most, $6,924.
General payments to Dr. Johnson by program year, 2016 to 2025
General payments to Dr. Johnson by kind, 2016 to 2025
- Food and beverage$42,59699%
- Education$4251%
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
Sources for Dr. Fielding Johnson III'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Fielding Johnson III
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. Fielding Johnson III's NPI number?
Dr. Fielding Johnson III's NPI number is 1346336237. It was assigned on October 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Fielding Johnson III?
Dr. Fielding Johnson III is a pulmonologist in Wethersfield, Connecticut. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Fielding Johnson III practice?
Dr. Johnson practices at 30 Jordan Ln, Wethersfield, CT 06109. Dr. Johnson's primary practice is Prime Healthcare in Wethersfield, Connecticut. Dmand AI also links Dr. Johnson to 4 medical groups, 1 physician office, 1 group practice or clinic and 1 skilled nursing facility.
What is Dr. Fielding Johnson III's office phone number?
The practice phone on file for Dr. Johnson is (860) 263-0253.
What is Dr. Fielding Johnson III's medical license number?
Dr. Johnson holds Connecticut license 038695.
What medical group is Dr. Fielding Johnson III part of?
Dr. Johnson is linked to Prime Healthcare, PC. Dmand AI links Dr. Johnson to 4 more medical groups.
Does Dr. Fielding Johnson III accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 249 services in 2024.
How many Medicare patients does Dr. Fielding Johnson III see?
CMS counts 89 Medicare patients who saw Dr. Johnson in 2024, with an average age of 73.
What services does Dr. Fielding Johnson III bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were office visit, established patient (99214), nursing facility care (99308) and office visit, established patient (99215).
What drugs does Dr. Fielding Johnson III prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Albuterol Sulfate Hfa.
Has Dr. Fielding Johnson III received payments from drug or device companies?
CMS Open Payments shows $43,022 in general payments to Dr. Johnson from 95 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Fielding Johnson III been practicing?
Dr. Johnson graduated from medical school in 1986, 40 years ago.
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