Dr. Joseph H. Chammas, MD

  • Escondido, CA
  • Cardiothoracic surgeon
NPI1902888522PAC ID5395739304
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
Social profiles

Primary practice

Ss Vascular

Escondido, California

See all 11 affiliations

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.

View contacts for free

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 and contact details
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 Vascular
    1045 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.

See all 11 affiliations for Dr. Chammas

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.

EHR by site
SiteEHR vendor and product
Ss VascularAvailable with a free account
+6 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Chammas practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

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), CaliforniaPrimaryLicense G86116 · 2001 to 2027 · taxonomy 208G00000X
  • Wisconsin license1994 to 2003

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.

Medicare services, 20241,014
Medicare patients283
Paid by Medicare$81,068
Procedure codes8

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.

See all procedures by Dr. Chammas

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.

Book a meeting

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.

Medicare patients, 2024283
Average age72
Average risk score4.23
Also on Medicaid59%

Dr. Chammas' Medicare patients by age, 2024

Dr. Chammas' Medicare patients by sex, 2024

  • Women12544%
  • Men15856%

Chronic conditions among Dr. Chammas' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes72%
  4. Chronic kidney disease62%
  5. Arthritis44%
  6. Heart failure43%
  7. Ischemic heart disease43%
  8. 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.

Part D claims, 2024153
Drugs named by CMS4
Total drug cost$45,644
Part D patients77

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.

See all prescribing by Dr. Chammas

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)

For MedTech and pharma teams

Find cardiothoracic surgeons like Dr. Chammas by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

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.

Papers9
Years published2011 to 2012

Topics Dr. Chammas writes about most

  • Heart-Assist Devices
  • Heart Failure
  • Pneumonectomy
  • Pulmonary Artery

Dr. Chammas' most frequent co-authors

Recent publications by Dr. Chammas

See all 9 publications and co-authors

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.

How network discovery works

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

$1.4Kin total
  • 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.

See all payments to Dr. Chammas

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.

  1. Medical schoolMedical College Of Wisconsin
  2. Board certified in thoracic and cardiac surgeryAmerican Board of Thoracic 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.

Plan types Dr. Chammas accepts, by number of carriers

  1. PPO10
  2. Medicare9
  3. HMO8
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Joseph H. Chammas'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)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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. 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.

Selling to thoracic surgery (cardiothoracic vascular surgery) practices?

See cardiothoracic surgeons in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)