Dr. Charles T. Buzanis, MD
- Medicare services, 2024
- 665
- Medicare patients, 2024
- 363
- Part D claims, 2024
- 656
- Industry payments
- $942
- Affiliated sites
- 3
- Practice address
- 310 Baker Ave, Concord, MA 01742
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Emerson Hospital Home Care Program - HOPD
Acute Care Hospital outpatient department · Concord, Massachusetts
Find Dr. Buzanis' professional email, personal email and mobile number
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Dr. Charles T. Buzanis is a gastroenterologist in Concord, Massachusetts
Dr. Buzanis practices at Emerson Hospital Home Care Program - HOPD in Concord, Massachusetts.
Dr. Buzanis' NPI, 1487764965, was assigned on August 30, 2006. Dr. Buzanis graduated from Un of California, Irvine, College of Medicine in 1988. Dr. Buzanis holds Massachusetts license 79160.
- NPI
- 1487764965NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264478569
- NPI enumeration date
- August 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles T. Buzanis practices at Emerson Hospital Home Care Program - HOPD in Concord, Massachusetts
Dr. Buzanis' primary practice is Emerson Hospital Home Care Program - HOPD, at 310 Baker Ave, Concord, MA 01742.
- Emerson Hospital Home Care Program - HOPD310 Baker Ave, Concord, MA 01742
Source: Dmand AI Affiliation Data
Dr. Charles T. Buzanis is affiliated with 3 sites of care and 1 medical group
Dr. Buzanis' primary practice is Emerson Hospital Home Care Program - HOPD in Concord, Massachusetts. The medical group on file is Atrius Health. Dmand AI also links Dr. Buzanis to 1 more group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Charles T. Buzanis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Buzanis practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emerson Hospital Home Care Program - HOPD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles T. Buzanis is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Buzanis' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Buzanis is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Buzanis
Counts of gastroenterologists 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. Charles T. Buzanis billed Medicare for 665 services in 2024
CMS data shows 665 Medicare services from Dr. Buzanis across 11 procedure codes in 2024, for 363 Medicare patients. Medicare paid $128,508 for them.
Dr. Buzanis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4592024: 4845%
- Lab and pathology
- 2023: 802024: 739%
- Office and hospital visits
- 2023: 1012024: 6437%
- Other services
- 2023: 242024: 4483%
Where Dr. Buzanis' Medicare services took place, 2024
- In an office57987%
- In a facility8613%
Dr. Buzanis compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Buzanis
- Massachusetts median
- Medicare services
- 665vs 51928% above
- Medicare patients
- 363vs 3436% above
- Part D claims
- 584vs 30095% above
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Buzanis' 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. Charles T. Buzanis treated 363 Medicare patients in 2024, average age 72
CMS counts 363 Medicare patients who saw Dr. Buzanis in 2024. The largest group is 65 to 74, with 228 patients. 68% of them have high cholesterol, and 53% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.70, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Buzanis' median patient age at 58, with 44% women.
Dr. Buzanis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Buzanis' Medicare patients by sex, 2024
- Women19153%
- Men17247%
Chronic conditions among Dr. Buzanis' Medicare patients, 2024
- High cholesterol68%
- High blood pressure53%
- Arthritis25%
- Mood disorders21%
- Anxiety19%
- Osteoporosis19%
- Cancer18%
- Diabetes18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Buzanis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charles T. Buzanis wrote 656 Medicare Part D claims in 2024
In 2024, Dr. Buzanis wrote 656 Medicare Part D claims for 444 patients. 87% of them were for generic drugs. CMS names the drug for 584 of them, across 13 drugs with 11 or more claims each, at $78,856 in total drug cost. In 2023, CMS named 620 claims across 13 drugs.
Dr. Buzanis' Part D claims by kind of drug, 2024
- Generic571 claims87%
- Brand-name85 claims13%
Dr. Buzanis' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6202024: 5846%
Drugs named by CMS: 13 in 2024, 13 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
Dr. Charles T. Buzanis ranks in the 66th percentile for colonoscopy in Medicare
Dr. Buzanis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Buzanis as offering telehealth. CMS counts 56 procedures of colonoscopy by Dr. Buzanis, more than 66% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Buzanis ranks in Medicare procedure volume
- Colonoscopy
- 66th percentile56 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 50th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Charles T. Buzanis received $942 in industry payments from 2016 to 2020
CMS Open Payments shows 54 general payments to Dr. Buzanis from 17 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $296.
General payments to Dr. Buzanis by program year, 2016 to 2020
Companies that paid Dr. Buzanis the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charles T. Buzanis graduated from Un of California, Irvine, College of Medicine
Dr. Buzanis graduated from Un of California, Irvine, College of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Charles T. Buzanis'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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. Charles T. Buzanis
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. Charles T. Buzanis' NPI number?
Dr. Charles T. Buzanis' NPI number is 1487764965. It was assigned on August 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles T. Buzanis?
Dr. Charles T. Buzanis is a gastroenterologist in Concord, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Charles T. Buzanis practice?
Dr. Buzanis practices at 310 Baker Ave, Concord, MA 01742. Dr. Buzanis' primary practice is Emerson Hospital Home Care Program - HOPD in Concord, Massachusetts. Dmand AI also links Dr. Buzanis to 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Charles T. Buzanis' medical license number?
Dr. Buzanis holds Massachusetts license 79160.
What medical group is Dr. Charles T. Buzanis part of?
Dr. Buzanis is linked to Atrius Health.
Does Dr. Charles T. Buzanis accept Medicare?
Yes. CMS data shows Dr. Buzanis billed Medicare for 665 services in 2024, and Dr. Buzanis accepts Medicare assignment.
Does Dr. Charles T. Buzanis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Buzanis as offering telehealth services.
How many Medicare patients does Dr. Charles T. Buzanis see?
CMS counts 363 Medicare patients who saw Dr. Buzanis in 2024, with an average age of 72.
What services does Dr. Charles T. Buzanis bill to Medicare?
In 2024, Dr. Buzanis' most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (45380) and medicare service (G0105).
Where did Dr. Charles T. Buzanis go to medical school?
Dr. Buzanis graduated from Un of California, Irvine, College of Medicine in 1988.
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What drugs does Dr. Charles T. Buzanis prescribe most?
In 2024 Medicare Part D data, Dr. Buzanis' most prescribed drugs by claims were Gavilyte-C, Peg3350-Sod Sul-Nacl-Kcl-Asb-C and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Charles T. Buzanis received payments from drug or device companies?
CMS Open Payments shows $942 in general payments to Dr. Buzanis from 17 companies from 2016 to 2020. The largest total came from Abbvie Inc.
How long has Dr. Charles T. Buzanis been practicing?
Dr. Buzanis graduated from medical school in 1988, 38 years ago.
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