Dr. Michael Dennis Johnson, MD
- Medicare services, 2024
- 1,781
- Medicare patients, 2024
- 533
- Part D claims, 2024
- 1,108
- Industry payments
- $341
- Affiliated sites
- 2
- Practice address
- 641 Us-130, Trenton, NJ 08691
- Practice phone
- Call (807) 968-5700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Patient First New Jersey Physicians Group
Trenton, New Jersey
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. Michael Dennis Johnson is a general surgeon in Trenton, New Jersey
Dr. Johnson practices at Patient First New Jersey Physicians Group in Trenton, New Jersey.
Dr. Johnson's NPI, 1144365974, was assigned on February 20, 2007. Dr. Johnson graduated from University of Michigan Medical School in 1979. Dr. Johnson holds Maryland license D0089895.
- NPI
- 1144365974NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436256914
- NPI enumeration date
- February 20, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (807) 968-5700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Dennis Johnson practices at Patient First New Jersey Physicians Group in Trenton, New Jersey
Dr. Johnson's primary practice is Patient First New Jersey Physicians Group, at 641 Us-130, Trenton, NJ 08691 in Mercer County. The practice phone is (807) 968-5700.
- Patient First New Jersey Physicians Group641 Us-130, Trenton, NJ 08691 · Mercer CountyPhone(807) 968-5700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael Dennis Johnson is affiliated with 3 sites of care and 4 medical groups
Dr. Johnson's primary practice is Patient First New Jersey Physicians Group in Trenton, New Jersey. The medical group on file is Patient First. Dmand AI also links Dr. Johnson to 3 more medical groups and 2 group practices and clinics, 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. Michael Dennis Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Patient First New Jersey Physicians Group | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Dennis Johnson is one of 675 general surgeons in New Jersey
Surgery is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Johnson's licenses on file in 3 states: Maryland, New Jersey and Pennsylvania.
Specialties and state licenses
- Surgery, MarylandPrimary
- New Jersey license
- Pennsylvania license
General surgeons near Dr. Johnson
Counts of general surgeons 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. Michael Dennis Johnson billed Medicare for 1,781 services in 2024
CMS data shows 1,781 Medicare services from Dr. Johnson across 24 procedure codes in 2024, for 533 Medicare patients. Medicare paid $76,264 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 6662024: 6414%
- Office and hospital visits
- 2023: 6642024: 6157%
- Imaging
- 2023: 2672024: 22316%
- Surgery
- 2023: 1712024: 1588%
- Drugs given in the office
- 2023: 1572024: 9241%
- Tests and treatments
- 2023: 1312024: 5260%
Dr. Johnson compared with the New Jersey median for general surgeons, 2024
- Dr. Johnson
- New Jersey median
- Medicare services
- 1,781vs 17010.5 times
- Medicare patients
- 533vs 1254.3 times
- Part D claims
- 834vs 2730.9 times
Medians across 630 general surgeons in New Jersey 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. Michael Dennis Johnson treated 533 Medicare patients in 2024, average age 74
CMS counts 533 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 257 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 54, with 57% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women33663%
- Men19737%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Diabetes32%
- Anxiety28%
- Ischemic heart disease23%
- COPD21%
- Mood disorders20%
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 54
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Dennis Johnson wrote 1,108 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 1,108 Medicare Part D claims for 428 patients. 87% of them were for generic drugs. CMS names the drug for 834 of them, across 37 drugs with 11 or more claims each, at $36,605 in total drug cost. In 2023, CMS named 801 claims across 34 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic964 claims87%
- Brand-name115 claims10%
- Other29 claims3%
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
- Antibiotics21%235 of 1,108 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: 8012024: 8344%
Drugs named by CMS: 37 in 2024, 34 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
How Dr. Michael Dennis Johnson takes part in Medicare
Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael Dennis Johnson received $341 in industry payments from 2016 to 2023
CMS Open Payments shows 8 general payments to Dr. Johnson from 5 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $124.
General payments to Dr. Johnson by program year, 2016 to 2023
Companies that paid Dr. Johnson the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Dennis Johnson graduated from University of Michigan Medical School
Dr. Johnson graduated from University of Michigan Medical School in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Dennis 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 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)Doctors and Clinicians Utilization Data (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. Michael Dennis 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. Michael Dennis Johnson's NPI number?
Dr. Michael Dennis Johnson's NPI number is 1144365974. It was assigned on February 20, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Dennis Johnson?
Dr. Michael Dennis Johnson is a general surgeon in Trenton, New Jersey. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael Dennis Johnson practice?
Dr. Johnson practices at 641 Us-130, Trenton, NJ 08691. Dr. Johnson's primary practice is Patient First New Jersey Physicians Group in Trenton, New Jersey. Dmand AI also links Dr. Johnson to 3 medical groups and 2 group practices and clinics.
What is Dr. Michael Dennis Johnson's office phone number?
The practice phone on file for Dr. Johnson is (807) 968-5700.
What is Dr. Michael Dennis Johnson's medical license number?
Dr. Johnson holds Maryland license D0089895, one of the licenses on file in 3 states.
Which states has Dr. Michael Dennis Johnson been licensed in?
Dmand AI has state licenses on file for Dr. Johnson in Maryland, New Jersey and Pennsylvania.
What medical group is Dr. Michael Dennis Johnson part of?
Dr. Johnson is linked to Patient First. Dmand AI links Dr. Johnson to 3 more medical groups.
Does Dr. Michael Dennis Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 1,781 services in 2024, and Dr. Johnson accepts Medicare assignment.
How many Medicare patients does Dr. Michael Dennis Johnson see?
CMS counts 533 Medicare patients who saw Dr. Johnson in 2024, with an average age of 74.
What services does Dr. Michael Dennis Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
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Where did Dr. Michael Dennis Johnson go to medical school?
Dr. Johnson graduated from University of Michigan Medical School in 1979.
What drugs does Dr. Michael Dennis Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Doxycycline Hyclate, Metformin HCl and Ezetimibe.
Has Dr. Michael Dennis Johnson received payments from drug or device companies?
CMS Open Payments shows $341 in general payments to Dr. Johnson from 5 companies from 2016 to 2023. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Michael Dennis Johnson been practicing?
Dr. Johnson graduated from medical school in 1979, 47 years ago.
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