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Dr. Ranjana Chaterji, DO
NPI1669637294PAC ID5890917710
- Medicare services, 2024
- 491
- Medicare patients, 2024
- 344
- Part D claims, 2024
- 30
- Clinical trials
- 1
- MIPS score, 2024
- 93
- 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. Chaterji'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. Ranjana Chaterji is a general surgeon in Mount Kisco, New York
Dr. Chaterji practices at Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
Dr. Chaterji's NPI, 1669637294, was assigned on July 23, 2008. Dr. Chaterji graduated from Philadelphia College of Osteopathic Medicine in 2008. Dr. Chaterji holds New York license 269492.
NPI and contact details
- NPI
- 1669637294NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890917710
- NPI enumeration date
- July 23, 2008
- 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
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ranjana Chaterji practices at Northern Westchester Hospital in Mount Kisco, New York
Dr. Chaterji'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. Ranjana Chaterji is affiliated with 2 sites of care and 2 medical groups
Dr. Chaterji's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health. Dr. Chaterji is also affiliated with Phelps Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Chaterji to 1 more medical group, named with a free account.
Phelps HospitalNorthwell Health Physician Partners Cardiology at Great Neck1 medical groupName with a free account
See all 4 affiliations for Dr. ChaterjiSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ranjana Chaterji's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chaterji 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 site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ranjana Chaterji is one of 1,604 general surgeons in New York
Surgery is Dr. Chaterji's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chaterji is licensed in New York.
Specialties and state licenses
- Surgery, New YorkPrimary
General surgeons near Dr. Chaterji
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. Ranjana Chaterji billed Medicare for 491 services in 2024
CMS data shows 491 Medicare services from Dr. Chaterji across 7 procedure codes in 2024, for 344 Medicare patients. Medicare paid $56,927 for them.
Medicare services, 2024491
Medicare patients344
Paid by Medicare$56,927
Procedure codes7
Dr. Chaterji's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4162024: 4324%
- Tests and treatments
- 2023: 402024: 4513%
- Surgery
- 2023: 162024: 1413%
Where Dr. Chaterji's Medicare services took place, 2024
- In an office47797%
- In a facility143%
Dr. Chaterji compared with the New York median for general surgeons, 2024
- Dr. Chaterji
- New York median
- Medicare services
- 491vs 1543.2 times
- Medicare patients
- 344vs 1093.2 times
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Chaterji'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ranjana Chaterji treated 344 Medicare patients in 2024, average age 74
CMS counts 344 Medicare patients who saw Dr. Chaterji in 2024. The largest group is 65 to 74, with 187 patients. 75% of them have high cholesterol, and 65% have cancer. 5% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chaterji's median patient age at 64, with 93% women.
Medicare patients, 2024344
Average age74
Average risk score0.93
Also on Medicaid5%
Dr. Chaterji's Medicare patients by age, 2024
Chronic conditions among Dr. Chaterji's Medicare patients, 2024
- High cholesterol75%
- Cancer65%
- High blood pressure62%
- Arthritis44%
- Osteoporosis41%
- Anxiety30%
- Mood disorders21%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chaterji's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women93%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ranjana Chaterji wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Chaterji wrote 30 Medicare Part D claims for 16 patients. 100% of them were for generic drugs.
Part D claims, 202430
Part D patients16
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ranjana Chaterji scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Chaterji for performance year 2024, reported through an alternative payment model (APM). Dr. Chaterji accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of mastectomy by Dr. Chaterji, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chaterji's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chaterji ranks in Medicare procedure volume
- Mastectomy
- 78th percentile20 procedures
- Melanoma (skin cancer) excision
- 69th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 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. Ranjana Chaterji has worked on 1 clinical trial
Dmand AI links Dr. Chaterji to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Breast Carcinoma In Situ and Carcinoma in Situ.
Conditions in Dr. Chaterji's trials
- Breast Carcinoma In Situ
- Carcinoma in Situ
Investigators on the most trials with Dr. Chaterji
Recent clinical trials with Dr. Chaterji
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ranjana Chaterji received $7,183 in industry payments from 2020 to 2024
CMS Open Payments shows 10 general payments to Dr. Chaterji from 5 drug and device companies from 2020 to 2024. Consulting fees make up the largest share, 90% of the total. Leica Microsystems Inc. paid the most, $6,506.
General payments to Dr. Chaterji by program year, 2020 to 2024
General payments to Dr. Chaterji by kind, 2020 to 2024
$7.2Kin total
- Consulting fees$6,47590%
- Honoraria$5007%
- Food and beverage$1792%
- Gifts$290%
Companies that paid Dr. Chaterji the most, 2020 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ranjana Chaterji graduated from Philadelphia College of Osteopathic Medicine
Dr. Chaterji graduated from Philadelphia College of Osteopathic Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ranjana Chaterji'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) |
| Part D prescribing | 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (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 |
| 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. Ranjana Chaterji
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. Ranjana Chaterji's NPI number?
Dr. Ranjana Chaterji's NPI number is 1669637294. It was assigned on July 23, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ranjana Chaterji?
Dr. Ranjana Chaterji 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. Ranjana Chaterji practice?
Dr. Chaterji practices at 400 East Main Street, Mount Kisco, NY 10549. Dr. Chaterji's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health. Dmand AI also links Dr. Chaterji to 1 medical group.
What is Dr. Ranjana Chaterji's office phone number?
The practice phone on file for Dr. Chaterji is (914) 666-1200.
What is Dr. Ranjana Chaterji's medical license number?
Dr. Chaterji holds New York license 269492.
Which hospitals is Dr. Ranjana Chaterji affiliated with?
Dr. Chaterji practices at Northern Westchester Hospital in Mount Kisco, New York. Dr. Chaterji is also affiliated with Phelps Hospital.
What medical group is Dr. Ranjana Chaterji part of?
Dr. Chaterji is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Chaterji to 1 more medical group.
Does Dr. Ranjana Chaterji accept Medicare?
Yes. CMS data shows Dr. Chaterji billed Medicare for 491 services in 2024, and Dr. Chaterji accepts Medicare assignment.
What is Dr. Ranjana Chaterji's MIPS score?
Dr. Chaterji's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Ranjana Chaterji see?
CMS counts 344 Medicare patients who saw Dr. Chaterji in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Ranjana Chaterji bill to Medicare?
In 2024, Dr. Chaterji's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and heart test or procedure (93702).
Where did Dr. Ranjana Chaterji go to medical school?
Dr. Chaterji graduated from Philadelphia College of Osteopathic Medicine in 2008.
Has Dr. Ranjana Chaterji received payments from drug or device companies?
CMS Open Payments shows $7,183 in general payments to Dr. Chaterji from 5 companies from 2020 to 2024. The largest total came from Leica Microsystems Inc.
How long has Dr. Ranjana Chaterji been practicing?
Dr. Chaterji graduated from medical school in 2008, 18 years ago.
Does Dr. Ranjana Chaterji do research?
Dr. Chaterji has worked on 1 clinical trial.
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