Dr. Christopher S. Joncas, MD

  • Fall River, MA
  • Internist
NPI1336136456PAC ID2365459013
Medicare services, 2024
7,559
Medicare patients, 2024
835
Part D claims, 2024
35,188
Hospital affiliations
2
Industry payments
$84,364
Practice address
203 Plymouth Ave, Fall River, MA 02721
Practice phone
Call (508) 676-3292
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Prima Care

Fall River, Massachusetts

See all 24 affiliations

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Dr. Christopher S. Joncas is an internist in Fall River, Massachusetts

Dr. Joncas practices at Prima Care in Fall River, Massachusetts.

Dr. Joncas' NPI, 1336136456, was assigned on October 4, 2005. Dr. Joncas graduated from UMass Chan Medical School in 1993. Dr. Joncas holds Massachusetts license 150167.

NPI and contact details
Medicare PAC ID
2365459013
NPI enumeration date
October 4, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(508) 676-3292
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
59
Medical school graduation
1993

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Christopher S. Joncas practices at Prima Care in Fall River, Massachusetts

Dr. Joncas' primary practice is Prima Care, at 203 Plymouth Ave, Fall River, MA 02721 in Bristol County. The practice phone is (508) 676-3292.

  • Prima Care
    203 Plymouth Ave, Fall River, MA 02721 · Bristol CountyPhone(508) 676-3292

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Christopher S. Joncas is affiliated with 19 sites of care and 5 medical groups

Dr. Joncas' primary practice is Prima Care in Fall River, Massachusetts. Dr. Joncas is also affiliated with Charlton Memorial Hospital. The medical group on file is Prima Care. Dmand AI also links Dr. Joncas to 1 more hospital, 5 group practices and clinics, 5 home health agencies, 5 hospices, 4 medical groups and 1 skilled nursing facility, each named with a free account.

See all 24 affiliations for Dr. Joncas

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Christopher S. Joncas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Joncas practices, 18 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Prima CareAvailable with a free account
+18 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Christopher S. Joncas is one of 5,528 internists in Massachusetts

Internal medicine is Dr. Joncas' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Joncas is board certified in hospice and palliative medicine by the American Board of Internal Medicine. Dmand AI has Dr. Joncas' licenses on file in 2 states: Massachusetts and Rhode Island.

Specialties and state licenses

  • Internal medicine, MassachusettsPrimaryLicense 150167 · 1996 to 2026 · taxonomy 207R00000X
  • Rhode Island licenseLicense MD09625 · 1997 to 2026

Clinical focus

Dmand AI lists acid reflux, acute kidney failure, acute sinusitis, acute skin infection, adjustment disease, alzheimer's disease, aneurysm and anxiety among the conditions Dr. Joncas treats.

Internists near Dr. Joncas

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. Christopher S. Joncas billed Medicare for 7,559 services in 2024

CMS data shows 7,559 Medicare services from Dr. Joncas across 51 procedure codes in 2024, for 835 Medicare patients. Medicare paid $233,454 for them.

Medicare services, 20247,559
Medicare patients835
Paid by Medicare$233,454
Procedure codes51

Dr. Joncas' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Lab and pathology
2023: 3,9142024: 4,0664%
Office and hospital visits
2023: 1,8052024: 1,46219%
Other services
2023: 6242024: 92448%
Surgery
2023: 8712024: 8651%
Tests and treatments
2023: 1672024: 24245%

Where Dr. Joncas' Medicare services took place, 2024

  • In an office7,10694%
  • In a facility4536%

Dr. Joncas compared with the Massachusetts median for internists, 2024

  • Dr. Joncas
  • Massachusetts median
Medicare services
7,559vs 43117.5 times
Medicare patients
835vs 1944.3 times
Part D claims
34,403vs 40285.6 times

Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Joncas' 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.

See all procedures by Dr. Joncas

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Christopher S. Joncas treated 835 Medicare patients in 2024, average age 76

CMS counts 835 Medicare patients who saw Dr. Joncas in 2024. The largest group is 75 to 84, with 263 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Joncas' median patient age at 71, with 57% women.

Medicare patients, 2024835
Average age76
Average risk score1.39
Also on Medicaid36%

Dr. Joncas' Medicare patients by age, 2024

Dr. Joncas' Medicare patients by sex, 2024

  • Women48558%
  • Men35042%

Chronic conditions among Dr. Joncas' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Anxiety47%
  4. Arthritis43%
  5. Mood disorders36%
  6. Depression32%
  7. Diabetes32%
  8. Ischemic heart disease29%

Share of Medicare patients with each condition. A patient can have several.

Dr. Joncas' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women57%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Christopher S. Joncas wrote 35,188 Medicare Part D claims in 2024

In 2024, Dr. Joncas wrote 35,188 Medicare Part D claims for 1,318 patients. 86% of them were for generic drugs. CMS names the drug for 34,403 of them, across 274 drugs with 11 or more claims each, at $1,729,852 in total drug cost. In 2023, CMS named 27,468 claims across 266 drugs.

Part D claims, 202435,188
Drugs named by CMS274
Total drug cost$1.7M
Part D patients1,318

Dr. Joncas' Part D claims by kind of drug, 2024

  • Generic30,388 claims86%
  • Brand-name4,608 claims13%
  • Other192 claims1%

Dr. Joncas' 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. Joncas' Part D claims, 2024

  • Opioids2%552 of 35,188 claims
  • Antibiotics2%577 of 35,188 claims
  • Antipsychotics, patients 65 and over2%696 of 35,188 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: 27,4682024: 34,40325%

Drugs named by CMS: 274 in 2024, 266 in 2023.

See all prescribing by Dr. Joncas

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. Christopher S. Joncas takes part in Medicare

Dr. Joncas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Christopher S. Joncas received $84,364 in industry payments from 2016 to 2025

CMS Open Payments shows 250 general payments to Dr. Joncas from 28 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 61% of the total. Neurocrine BioSciences, Inc. paid the most, $82,034.

General payments to Dr. Joncas by program year, 2016 to 2025

General payments to Dr. Joncas by kind, 2016 to 2025

$84.4Kin total
  • Speaker and faculty fees$51,57161%
  • Consulting fees$20,62524%
  • Food and beverage$6,3988%
  • Travel and lodging$5,7697%

Companies that paid Dr. Joncas the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Joncas

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Christopher S. Joncas has 1 award and honors on record

Dmand AI lists 1 award for Dr. Joncas, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Joncas

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Christopher S. Joncas graduated from UMass Chan Medical School

Dr. Joncas graduated from UMass Chan Medical School in 1993.

  1. Medical schoolUMass Chan Medical School
  2. Board certified in hospice and palliative medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Christopher S. Joncas accepts plans from 13 insurance carriers

Dr. Joncas is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Excellus BlueCross BlueShield
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Humana
  • +5 more carriersWith a free account

Plan types Dr. Joncas accepts, by number of carriers

  1. Medicare10
  2. PPO9
  3. HMO7
  4. POS4
  5. EPO3
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Christopher S. Joncas's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Christopher S. Joncas

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. Christopher S. Joncas' NPI number?

Dr. Christopher S. Joncas' NPI number is 1336136456. It was assigned on October 4, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Christopher S. Joncas?

Dr. Christopher S. Joncas is an internist in Fall River, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Christopher S. Joncas practice?

Dr. Joncas practices at 203 Plymouth Ave, Fall River, MA 02721. Dr. Joncas' primary practice is Prima Care in Fall River, Massachusetts. Dmand AI also links Dr. Joncas to 1 hospital, 5 group practices and clinics, 5 home health agencies, 5 hospices, 4 medical groups and 1 skilled nursing facility.

What is Dr. Christopher S. Joncas' office phone number?

The practice phone on file for Dr. Joncas is (508) 676-3292.

What is Dr. Christopher S. Joncas' medical license number?

Dr. Joncas holds Massachusetts license 150167, one of the licenses on file in 2 states.

Which states has Dr. Christopher S. Joncas been licensed in?

Dmand AI has state licenses on file for Dr. Joncas in Massachusetts (1996 to 2026) and Rhode Island (1997 to 2026).

Which hospitals is Dr. Christopher S. Joncas affiliated with?

Dr. Joncas is affiliated with Charlton Memorial Hospital. Dmand AI links Dr. Joncas to 1 more hospital.

What medical group is Dr. Christopher S. Joncas part of?

Dr. Joncas is linked to Prima Care. Dmand AI links Dr. Joncas to 4 more medical groups.

Does Dr. Christopher S. Joncas accept Medicare?

Yes. CMS data shows Dr. Joncas billed Medicare for 7,559 services in 2024, and Dr. Joncas accepts Medicare assignment.

How many Medicare patients does Dr. Christopher S. Joncas see?

CMS counts 835 Medicare patients who saw Dr. Joncas in 2024, with an average age of 76.

Show 7 more questionsShow fewer questions

Is Dr. Christopher S. Joncas board certified?

Yes. Dr. Joncas is board certified in hospice and palliative medicine by the American Board of Internal Medicine.

What services does Dr. Christopher S. Joncas bill to Medicare?

In 2024, Dr. Joncas' most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and lab and pathology test (85025).

Where did Dr. Christopher S. Joncas go to medical school?

Dr. Joncas graduated from UMass Chan Medical School in 1993.

What drugs does Dr. Christopher S. Joncas prescribe most?

In 2024 Medicare Part D data, Dr. Joncas' most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Trazodone HCl.

Has Dr. Christopher S. Joncas received payments from drug or device companies?

CMS Open Payments shows $84,364 in general payments to Dr. Joncas from 28 companies from 2016 to 2025. The largest total came from Neurocrine BioSciences, Inc.

How long has Dr. Christopher S. Joncas been practicing?

Dr. Joncas graduated from medical school in 1993, 33 years ago.

What insurance does Dr. Christopher S. Joncas accept?

Dr. Joncas is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

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