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Dr. Joseph H. Chammas, MD
- Medicare services, 2024
- 1,014
- Medicare patients, 2024
- 283
- Part D claims, 2024
- 153
- Publications
- 9
- MIPS score, 2024
- 100
- Practice address
- 1045 E Pennsylvania Ave, Escondido, CA 92025
- Practice phone
- Call (619) 567-3556
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ss Vascular
Escondido, California
Find Dr. Chammas' 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. Joseph H. Chammas is a cardiothoracic surgeon in Escondido, California
Dr. Chammas practices at Ss Vascular in Escondido, California.
Dr. Chammas' NPI, 1902888522, was assigned on November 18, 2005. Dr. Chammas graduated from Medical College Of Wisconsin in 1993. Dr. Chammas holds California license G86116.
- NPI
- 1902888522NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395739304
- NPI enumeration date
- November 18, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 567-3556
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- 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. Joseph H. Chammas practices at Ss Vascular in Escondido, California
Dr. Chammas' primary practice is Ss Vascular, at 1045 E Pennsylvania Ave, Escondido, CA 92025 in San Diego County. The practice phone is (619) 567-3556.
- Ss Vascular1045 E Pennsylvania Ave, Escondido, CA 92025 · San Diego CountyPhone(619) 567-3556
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joseph H. Chammas is affiliated with 7 sites of care and 4 medical groups
Dr. Chammas' primary practice is Ss Vascular in Escondido, California. Dr. Chammas is also affiliated with Palomar Medical Center Downtown Escondido. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Chammas to 1 more hospital, 4 group practices and clinics and 3 medical groups, 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. Joseph H. Chammas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chammas practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ss Vascular | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph H. Chammas is one of 568 cardiothoracic surgeons in California
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Chammas' primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Chammas is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery. Dmand AI has Dr. Chammas' licenses on file in 2 states: California and Wisconsin.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), CaliforniaPrimary
- Wisconsin license
Cardiothoracic surgeons near Dr. Chammas
Counts of cardiothoracic 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. Joseph H. Chammas billed Medicare for 1,014 services in 2024
CMS data shows 1,014 Medicare services from Dr. Chammas across 8 procedure codes in 2024, for 283 Medicare patients. Medicare paid $81,068 for them.
Dr. Chammas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9242024: 9493%
- Surgery
- 2023: 372024: 6576%
- Tests and treatments
- 2023: 112024: 0100%
Where Dr. Chammas' Medicare services took place, 2024
- In an office53853%
- In a facility47647%
Dr. Chammas compared with the California median for cardiothoracic surgeons, 2024
- Dr. Chammas
- California median
- Medicare services
- 1,014vs 1148.9 times
- Medicare patients
- 283vs 953.0 times
- Part D claims
- 103vs 195.4 times
Medians across 453 cardiothoracic surgeons in California with Dmand AI profiles that report each measure.
Dr. Chammas' 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.
Need commercial claims for Dr. Chammas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chammas and other cardiothoracic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph H. Chammas treated 283 Medicare patients in 2024, average age 72
CMS counts 283 Medicare patients who saw Dr. Chammas in 2024. The largest group is 65 to 74, with 120 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 59% are also on Medicaid. Their average risk score is 4.23, 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. Chammas' median patient age at 67, with 39% women.
Dr. Chammas' Medicare patients by age, 2024
Dr. Chammas' Medicare patients by sex, 2024
- Women12544%
- Men15856%
Chronic conditions among Dr. Chammas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes72%
- Chronic kidney disease62%
- Arthritis44%
- Heart failure43%
- Ischemic heart disease43%
- Mood disorders38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chammas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women39%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph H. Chammas wrote 153 Medicare Part D claims in 2024
In 2024, Dr. Chammas wrote 153 Medicare Part D claims for 77 patients. 56% of them were for generic drugs. CMS names the drug for 103 of them, across 4 drugs with 11 or more claims each, at $45,644 in total drug cost. In 2023, CMS named 117 claims across 5 drugs.
Dr. Chammas' Part D claims by kind of drug, 2024
- Generic86 claims56%
- Brand-name67 claims44%
Dr. Chammas' 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. Chammas' Part D claims, 2024
- Opioids22%33 of 153 claims
- Antibiotics18%27 of 153 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: 1172024: 10312%
Drugs named by CMS: 4 in 2024, 5 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. Joseph H. Chammas scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Chammas for performance year 2024, reported as part of a group. Dr. Chammas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chammas' MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Joseph H. Chammas has 9 publications on record
Dmand AI links 9 papers to Dr. Chammas, published from 2011 to 2012. The most frequent topics are Heart-Assist Devices, Heart Failure and Pneumonectomy. Dr. Chammas has published most often in Ann Thorac Surg. Dr. Chammas' most frequent co-authors are Robert M. Adamson, MD, Sam Baradarian, MD and Michael Bousamra, MD.
Topics Dr. Chammas writes about most
- Heart-Assist Devices
- Heart Failure
- Pneumonectomy
- Pulmonary Artery
Dr. Chammas' most frequent co-authors
- Robert M. Adamson, MD3 shared papers
- Sam Baradarian, MD3 shared papers
- Michael Bousamra, MD3 shared papers
Recent publications by Dr. Chammas
Ann Thorac Surg
Ann Thorac Surg
See who Dr. Chammas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chammas works with, so you can find a warm path to the right cardiothoracic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joseph H. Chammas received $1,437 in industry payments from 2016 to 2025
CMS Open Payments shows 34 general payments to Dr. Chammas from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Medtronic, Inc. paid the most, $237.
General payments to Dr. Chammas by program year, 2016 to 2025
General payments to Dr. Chammas by kind, 2016 to 2025
- Food and beverage$1,25687%
- Device or supply loans$18113%
Companies that paid Dr. Chammas the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph H. Chammas graduated from Medical College Of Wisconsin
Dr. Chammas graduated from Medical College Of Wisconsin in 1993.
- Medical school
- Board certified in thoracic and cardiac surgery
Source: Dmand AI Professional Profile Data
Dr. Joseph H. Chammas accepts plans from 16 insurance carriers
Dr. Chammas is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Humana
- Blue Cross Blue Shield of Massachusetts
- Molina
- +8 more carriersWith a free account
Plan types Dr. Chammas accepts, by number of carriers
- PPO10
- Medicare9
- HMO8
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Joseph H. Chammas'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Joseph H. Chammas
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. Joseph H. Chammas' NPI number?
Dr. Joseph H. Chammas' NPI number is 1902888522. It was assigned on November 18, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph H. Chammas?
Dr. Joseph H. Chammas is a cardiothoracic surgeon in Escondido, California. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Joseph H. Chammas practice?
Dr. Chammas practices at 1045 E Pennsylvania Ave, Escondido, CA 92025. Dr. Chammas' primary practice is Ss Vascular in Escondido, California. Dmand AI also links Dr. Chammas to 1 hospital, 4 group practices and clinics and 3 medical groups.
What is Dr. Joseph H. Chammas' office phone number?
The practice phone on file for Dr. Chammas is (619) 567-3556.
What is Dr. Joseph H. Chammas' medical license number?
Dr. Chammas holds California license G86116, one of the licenses on file in 2 states.
Which states has Dr. Joseph H. Chammas been licensed in?
Dmand AI has state licenses on file for Dr. Chammas in California (2001 to 2027) and Wisconsin (1994 to 2003).
Which hospitals is Dr. Joseph H. Chammas affiliated with?
Dr. Chammas is affiliated with Palomar Medical Center Downtown Escondido. Dmand AI links Dr. Chammas to 1 more hospital.
What medical group is Dr. Joseph H. Chammas part of?
Dr. Chammas is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Chammas to 3 more medical groups.
Does Dr. Joseph H. Chammas accept Medicare?
Yes. CMS data shows Dr. Chammas billed Medicare for 1,014 services in 2024, and Dr. Chammas accepts Medicare assignment.
What is Dr. Joseph H. Chammas' MIPS score?
Dr. Chammas' MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Joseph H. Chammas see?
CMS counts 283 Medicare patients who saw Dr. Chammas in 2024, with an average age of 72.
Is Dr. Joseph H. Chammas board certified?
Yes. Dr. Chammas is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery.
What services does Dr. Joseph H. Chammas bill to Medicare?
In 2024, Dr. Chammas' most billed Medicare services were office visit, established patient (99212), hospital inpatient care (99232) and hospital inpatient care (99222).
Where did Dr. Joseph H. Chammas go to medical school?
Dr. Chammas graduated from Medical College Of Wisconsin in 1993.
What drugs does Dr. Joseph H. Chammas prescribe most?
In 2024 Medicare Part D data, Dr. Chammas' most prescribed drugs by claims were Santyl, Hydrocodone-Acetaminophen and Eliquis.
Has Dr. Joseph H. Chammas received payments from drug or device companies?
CMS Open Payments shows $1,437 in general payments to Dr. Chammas from 18 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Joseph H. Chammas been practicing?
Dr. Chammas graduated from medical school in 1993, 33 years ago.
Does Dr. Joseph H. Chammas do research?
Dmand AI links 9 publications to Dr. Chammas, published from 2011 to 2012.
Who does Dr. Joseph H. Chammas publish with?
Dr. Chammas' most frequent co-authors are Robert M. Adamson, MD (3 shared papers), Sam Baradarian, MD (3 shared papers) and Michael Bousamra, MD (3 shared papers).
What insurance does Dr. Joseph H. Chammas accept?
Dr. Chammas is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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