Dr. Carl E. Johnson, MD
- Medicare services, 2024
- 738
- Medicare patients, 2024
- 129
- Part D claims, 2024
- 3,500
- Industry payments
- $18
- State license
- 1
- Practice address
- 123 High St, Topsfield, MA 01983
- Practice phone
- Call (978) 887-7002
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Masconomet Healthcare Center
Topsfield, Massachusetts
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. Carl E. Johnson is an internist in Topsfield, Massachusetts
Dr. Johnson practices at Masconomet Healthcare Center in Topsfield, Massachusetts.
Dr. Johnson's NPI, 1144237215, was assigned on August 2, 2006. Dr. Johnson holds Massachusetts license 46917.
- NPI
- 1144237215NPI Registry (opens in a new tab)
- NPI enumeration date
- August 2, 2006
- NPI status
- Active
- Practice phone
- (978) 887-7002
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Carl E. Johnson practices at Masconomet Healthcare Center in Topsfield, Massachusetts
Dr. Johnson's primary practice is Masconomet Healthcare Center, at 123 High St, Topsfield, MA 01983 in Essex County. The practice phone is (978) 887-7002.
- Masconomet Healthcare Center123 High St, Topsfield, MA 01983 · Essex CountyPhone(978) 887-7002
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Carl E. Johnson is affiliated with 1 site of care
Dr. Johnson's primary practice is Masconomet Healthcare Center in Topsfield, Massachusetts.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Carl E. 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 |
|---|---|
| Masconomet Healthcare Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Carl E. Johnson is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnson is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
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. Carl E. Johnson billed Medicare for 738 services in 2024
CMS data shows 738 Medicare services from Dr. Johnson across 4 procedure codes in 2024, for 129 Medicare patients. Medicare paid $39,398 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: 8502024: 73813%
Dr. Johnson compared with the Massachusetts median for internists, 2024
- Dr. Johnson
- Massachusetts median
- Medicare services
- 738vs 43171% above
- Medicare patients
- 129vs 19434% below
- Part D claims
- 3,071vs 4027.6 times
Medians across 5,369 internists in Massachusetts 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 Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Carl E. Johnson treated 129 Medicare patients in 2024, average age 85
CMS counts 129 Medicare patients who saw Dr. Johnson in 2024. The largest group is 85 and over, with 67 patients. 75% of them have arthritis, and 75% have high blood pressure. 29% are also on Medicaid. Their average risk score is 1.99, 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 79, with 63% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women7860%
- Men5140%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety53%
- Chronic kidney disease51%
- Depression47%
- Heart failure47%
- Mood disorders47%
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 79
Patient panel by sex, all payers
- Women63%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carl E. Johnson wrote 3,500 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 3,500 Medicare Part D claims for 84 patients. 82% of them were for generic drugs. CMS names the drug for 3,071 of them, across 74 drugs with 11 or more claims each, at $147,063 in total drug cost. In 2023, CMS named 4,130 claims across 95 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic2,876 claims82%
- Brand-name and other624 claims18%
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
- Opioids1%43 of 3,500 claims
- Antibiotics2%72 of 3,500 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: 4,1302024: 3,07126%
Drugs named by CMS: 74 in 2024, 95 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. Carl E. Johnson received $18 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Johnson from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $18.
Companies that paid Dr. Johnson the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Carl E. 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 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. Carl E. 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. Carl E. Johnson's NPI number?
Dr. Carl E. Johnson's NPI number is 1144237215. It was assigned on August 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Carl E. Johnson?
Dr. Carl E. Johnson is an internist in Topsfield, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Carl E. Johnson practice?
Dr. Johnson practices at 123 High St, Topsfield, MA 01983. Dr. Johnson's primary practice is Masconomet Healthcare Center in Topsfield, Massachusetts.
What is Dr. Carl E. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (978) 887-7002.
What is Dr. Carl E. Johnson's medical license number?
Dr. Johnson holds Massachusetts license 46917.
Does Dr. Carl E. Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 738 services in 2024.
How many Medicare patients does Dr. Carl E. Johnson see?
CMS counts 129 Medicare patients who saw Dr. Johnson in 2024, with an average age of 85.
What services does Dr. Carl E. Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were nursing facility care (99307), nursing facility care (99308) and nursing facility care (99306).
What drugs does Dr. Carl E. Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Warfarin Sodium, Eliquis and Atorvastatin Calcium.
Has Dr. Carl E. Johnson received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Johnson from 1 company from 2016 to 2016. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Carl E. Johnson been practicing?
Dr. Johnson's NPI was assigned in 2006.
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