CholecystectomyHernia, VentralHerniorrhaphy
Dr. John Young Cha, MD
NPI1861433518PAC ID0840290714
- Medicare services, 2024
- 87
- Medicare patients, 2024
- 110
- Publications
- 14
- Hospital affiliations
- 1
- Industry payments
- $497
- Practice address
- 400 East Main Street, Mount Kisco, NY 10549
- Practice phone
- Call (914) 666-1200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cha's 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. John Young Cha is a general surgeon in Mount Kisco, New York
Dr. Cha practices at Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
Dr. Cha's NPI, 1861433518, was assigned on June 10, 2006. Dr. Cha graduated from Lewis Katz School of Medicine in 1999. Dr. Cha holds Florida license ME 101899.
NPI and contact details
- NPI
- 1861433518NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840290714
- NPI enumeration date
- June 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 666-1200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Young Cha practices at Northern Westchester Hospital in Mount Kisco, New York
Dr. Cha's primary practice is Northern Westchester Hospital, at 400 East Main Street, Mount Kisco, NY 10549 in Westchester County. The practice phone is (914) 666-1200.
- Northern Westchester Hospital400 East Main Street, Mount Kisco, NY 10549 · Westchester CountyPhone(914) 666-1200
Source: Dmand AI Affiliation Data
Dr. John Young Cha is affiliated with 2 sites of care and 1 medical group
Dr. Cha's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Cha to 1 more group practice or clinic, named with a free account.
Northwell Health Physician Partners Cardiology at Great Neck1 group practice or clinicName with a free account
See all 3 affiliations for Dr. ChaSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Young Cha's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cha practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Westchester Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Cha practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Young Cha is one of 1,604 general surgeons in New York
Surgery is Dr. Cha's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Cha is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Cha's licenses on file in 3 states: Florida, Colorado and New York.
Specialties and state licenses
- Surgery, FloridaPrimary
- Colorado license
- New York license
Clinical focus
Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, appendectomy, chest trauma, gallbladder removal, gastrointestinal obstruction, non-surgical back problems and traumatic coma among the conditions Dr. Cha treats.
General surgeons near Dr. Cha
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
1,604general surgeons in New York11general surgeons in Mount Kisco4general surgeons at Northern Westchester Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Young Cha billed Medicare for 87 services in 2024
CMS data shows 87 Medicare services from Dr. Cha across 3 procedure codes in 2024, for 110 Medicare patients. Medicare paid $5,699 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202487
Medicare patients110
Paid by Medicare$5,699
Procedure codes3
Dr. Cha's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1372024: 8736%
Dr. Cha compared with the New York median for general surgeons, 2024
- Dr. Cha
- New York median
- Medicare services
- 87vs 15444% below
- Medicare patients
- 110vs 109Close to median
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Cha'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.
Need commercial claims for Dr. Cha?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cha and other general surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Young Cha treated 110 Medicare patients in 2024, average age 74
CMS counts 110 Medicare patients who saw Dr. Cha in 2024. The largest group is 65 to 74, with 35 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.89, 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. Cha's median patient age at 57, with 51% women.
Medicare patients, 2024110
Average age74
Average risk score2.89
Also on Medicaid19%
Dr. Cha's Medicare patients by age, 2024
Dr. Cha's Medicare patients by sex, 2024
- Women5853%
- Men5247%
Chronic conditions among Dr. Cha's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Ischemic heart disease58%
- Chronic kidney disease54%
- Mood disorders47%
- Anxiety44%
- Diabetes43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cha's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John Young Cha takes part in Medicare
Dr. Cha accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 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); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Find general surgeons like Dr. Cha 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. John Young Cha has 14 publications on record
Dmand AI links 14 papers to Dr. Cha, published from 2013 to 2023. The most frequent topics are Florida, Trauma Centers and Wounds and Injuries. Dr. Cha has published most often in J Am Coll Surg. Dr. Cha's most frequent co-authors are David J. Ciesla, MD, Alden Hood Harken, MD and Lewis Matthew Flint, MD.
Papers14
Years published2013 to 2023
Dr. Cha's papers by year, 2013 to 2023
Topics Dr. Cha writes about most
- Florida
- Trauma Centers
- Wounds and Injuries
- Signal Transduction
- Abdominal Injuries
- Injury Severity Score
- Mice, Inbred C57BL
- Mice, Inbred Strains
Dr. Cha's most frequent co-authors
- David J. Ciesla, MD6 shared papers
- Alden Hood Harken, MD3 shared papers
- Lewis Matthew Flint, MD2 shared papers
Recent publications by Dr. Cha
Abdominal InjuriesAlbuminsCrystalloid Solutions
Ann Thorac Surg
Gene ExpressionInterleukin-1betaMice, Inbred Strains
Am J Surg
Academic Medical CentersDelivery of Health Care, IntegratedEfficiency, Organizational
See who Dr. Cha researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Cha works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Young Cha received $497 in industry payments from 2016 to 2025
CMS Open Payments shows 8 general payments to Dr. Cha from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Baxter Healthcare paid the most, $296.
General payments to Dr. Cha by program year, 2016 to 2025
Companies that paid Dr. Cha 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. John Young Cha has 1 award and honors on record
Dmand AI lists 1 award for Dr. Cha.
Awards and honors for Dr. Cha
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. John Young Cha graduated from Lewis Katz School of Medicine
Dr. Cha graduated from Lewis Katz School of Medicine in 1999. Dr. Cha is a member of ACS.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
Source: Dmand AI Professional Profile Data
Dr. John Young Cha accepts plans from 18 insurance carriers
Dr. Cha is in network with 18 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Aspirus Health Plan
- +10 more carriersWith a free account
Plan types Dr. Cha accepts, by number of carriers
- PPO12
- Medicare10
- HMO9
- POS6
- EPO5
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. John Young Cha'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 DataDmand AI Org Hierarchy 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) |
| 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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Young Cha
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. John Young Cha's NPI number?
Dr. John Young Cha's NPI number is 1861433518. It was assigned on June 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Young Cha?
Dr. John Young Cha is a general surgeon in Mount Kisco, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Young Cha practice?
Dr. Cha practices at 400 East Main Street, Mount Kisco, NY 10549. Dr. Cha's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health. Dmand AI also links Dr. Cha to 1 group practice or clinic.
What is Dr. John Young Cha's office phone number?
The practice phone on file for Dr. Cha is (914) 666-1200.
What is Dr. John Young Cha's medical license number?
Dr. Cha holds Florida license ME 101899, one of the licenses on file in 3 states.
Which states has Dr. John Young Cha been licensed in?
Dmand AI has state licenses on file for Dr. Cha in Florida (2008 to 2026), Colorado (2006 to 2027) and New York (2025 to 2027).
Which hospitals is Dr. John Young Cha affiliated with?
Dr. Cha practices at Northern Westchester Hospital in Mount Kisco, New York.
What medical group is Dr. John Young Cha part of?
Dr. Cha is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Does Dr. John Young Cha accept Medicare?
Yes. CMS data shows Dr. Cha billed Medicare for 87 services in 2024, and Dr. Cha accepts Medicare assignment.
How many Medicare patients does Dr. John Young Cha see?
CMS counts 110 Medicare patients who saw Dr. Cha in 2024, with an average age of 74.
Show 8 more questionsShow fewer questions
Is Dr. John Young Cha board certified?
Yes. Dr. Cha is board certified in surgery by the American Board of Surgery.
What services does Dr. John Young Cha bill to Medicare?
In 2024, Dr. Cha's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99222) and hospital inpatient care (99221).
Where did Dr. John Young Cha go to medical school?
Dr. Cha graduated from Lewis Katz School of Medicine in 1999.
Has Dr. John Young Cha received payments from drug or device companies?
CMS Open Payments shows $497 in general payments to Dr. Cha from 6 companies from 2016 to 2025. The largest total came from Baxter Healthcare.
How long has Dr. John Young Cha been practicing?
Dr. Cha graduated from medical school in 1999, 27 years ago.
Does Dr. John Young Cha do research?
Dmand AI links 14 publications to Dr. Cha, published from 2013 to 2023.
Who does Dr. John Young Cha publish with?
Dr. Cha's most frequent co-authors are David J. Ciesla, MD (6 shared papers), Alden Hood Harken, MD (3 shared papers) and Lewis Matthew Flint, MD (2 shared papers).
What insurance does Dr. John Young Cha accept?
Dr. Cha is in network with 18 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
Selling to surgery practices?
See general surgeons in New York 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