Dr. Deepshikha Nag Chowdhury, MD
- Medicare services, 2024
- 303
- Medicare patients, 2024
- 212
- Part D claims, 2024
- 266
- Hospital affiliations
- 3
- Industry payments
- $3,428
- Practice address
- 15 Tsienneto Road Ste 101, Derry, NH 03038
- Practice phone
- Call (603) 460-4955
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgical Center of New Hampshire at Derry
Surgery Center - Medicare-Certified · Derry, New Hampshire
Find Dr. Nag Chowdhury'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. Deepshikha Nag Chowdhury is a gastroenterologist in Derry, New Hampshire
Dr. Nag Chowdhury practices at Surgical Center of New Hampshire at Derry in Derry, New Hampshire.
Dr. Nag Chowdhury's NPI, 1255643078, was assigned on July 9, 2010. Dr. Nag Chowdhury holds New Mexico license MD2016-0067.
- NPI
- 1255643078NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911299185
- NPI enumeration date
- July 9, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (603) 460-4955
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Deepshikha Nag Chowdhury practices at Surgical Center of New Hampshire at Derry in Derry, New Hampshire
Dr. Nag Chowdhury's primary practice is Surgical Center of New Hampshire at Derry, at 15 Tsienneto Road Ste 101, Derry, NH 03038. The practice phone is (603) 460-4955.
- Surgical Center of New Hampshire at Derry15 Tsienneto Road Ste 101, Derry, NH 03038Phone(603) 460-4955
Source: Dmand AI Affiliation Data
Dr. Deepshikha Nag Chowdhury is affiliated with 5 sites of care and 2 medical groups
Dr. Nag Chowdhury's primary practice is Surgical Center of New Hampshire at Derry in Derry, New Hampshire. Dr. Nag Chowdhury is also affiliated with Parkland Medical Center. The medical group on file is Granite State Gastroenterology. Dmand AI also links Dr. Nag Chowdhury to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Deepshikha Nag Chowdhury's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nag Chowdhury practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgical Center of New Hampshire at Derry | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Deepshikha Nag Chowdhury is one of 87 gastroenterologists in New Hampshire
Gastroenterology is Dr. Nag Chowdhury's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Nag Chowdhury is licensed in New Mexico.
Specialties and state licenses
- Gastroenterology, New MexicoPrimary
Gastroenterologists near Dr. Nag Chowdhury
Counts of gastroenterologists 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. Deepshikha Nag Chowdhury billed Medicare for 303 services in 2024
CMS data shows 303 Medicare services from Dr. Nag Chowdhury across 7 procedure codes in 2024, for 212 Medicare patients. Medicare paid $33,076 for them.
Dr. Nag Chowdhury's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1312024: 17231%
- Office and hospital visits
- 2023: 1442024: 1319%
Where Dr. Nag Chowdhury's Medicare services took place, 2024
- In an office13143%
- In a facility17257%
Dr. Nag Chowdhury compared with the New Hampshire median for gastroenterologists, 2024
- Dr. Nag Chowdhury
- New Hampshire median
- Medicare services
- 303vs 49238% below
- Medicare patients
- 212vs 35741% below
- Part D claims
- 186vs 22818% below
Medians across 82 gastroenterologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Nag Chowdhury'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nag Chowdhury and other gastroenterologists in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Deepshikha Nag Chowdhury treated 212 Medicare patients in 2024, average age 72
CMS counts 212 Medicare patients who saw Dr. Nag Chowdhury in 2024. The largest group is 65 to 74, with 123 patients. 75% of them have high cholesterol, and 69% have high blood pressure. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nag Chowdhury's median patient age at 59, with 58% women.
Dr. Nag Chowdhury's Medicare patients by age, 2024
Dr. Nag Chowdhury's Medicare patients by sex, 2024
- Women12358%
- Men8942%
Chronic conditions among Dr. Nag Chowdhury's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis42%
- Anxiety32%
- Mood disorders29%
- Depression26%
- Diabetes26%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nag Chowdhury's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Deepshikha Nag Chowdhury wrote 266 Medicare Part D claims in 2024
In 2024, Dr. Nag Chowdhury wrote 266 Medicare Part D claims for 105 patients. 75% of them were for generic drugs. CMS names the drug for 186 of them, across 6 drugs with 11 or more claims each, at $50,646 in total drug cost. In 2023, CMS named 96 claims across 3 drugs.
Dr. Nag Chowdhury's Part D claims by kind of drug, 2024
- Generic200 claims75%
- Brand-name66 claims25%
Dr. Nag Chowdhury's 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 962024: 18694%
Drugs named by CMS: 6 in 2024, 3 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. Deepshikha Nag Chowdhury ranks in the 93rd percentile for colonoscopy in Medicare
Dr. Nag Chowdhury accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nag Chowdhury as offering telehealth. CMS counts 188 procedures of colonoscopy by Dr. Nag Chowdhury, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Nag Chowdhury ranks in Medicare procedure volume
- Colonoscopy
- 93rd percentile188 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 81st percentile127 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Deepshikha Nag Chowdhury received $3,428 in industry payments from 2016 to 2025
CMS Open Payments shows 129 general payments to Dr. Nag Chowdhury from 23 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $890.
General payments to Dr. Nag Chowdhury by program year, 2016 to 2025
General payments to Dr. Nag Chowdhury by kind, 2016 to 2025
- Food and beverage$3,411100%
- Education$170%
Companies that paid Dr. Nag Chowdhury the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Deepshikha Nag Chowdhury'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Deepshikha Nag Chowdhury
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. Deepshikha Nag Chowdhury's NPI number?
Dr. Deepshikha Nag Chowdhury's NPI number is 1255643078. It was assigned on July 9, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Deepshikha Nag Chowdhury?
Dr. Deepshikha Nag Chowdhury is a gastroenterologist in Derry, New Hampshire. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Deepshikha Nag Chowdhury practice?
Dr. Nag Chowdhury practices at 15 Tsienneto Road Ste 101, Derry, NH 03038. Dr. Nag Chowdhury's primary practice is Surgical Center of New Hampshire at Derry in Derry, New Hampshire. Dmand AI also links Dr. Nag Chowdhury to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Deepshikha Nag Chowdhury's office phone number?
The practice phone on file for Dr. Nag Chowdhury is (603) 460-4955.
What is Dr. Deepshikha Nag Chowdhury's medical license number?
Dr. Nag Chowdhury holds New Mexico license MD2016-0067.
Which hospitals is Dr. Deepshikha Nag Chowdhury affiliated with?
Dr. Nag Chowdhury is affiliated with Parkland Medical Center. Dmand AI links Dr. Nag Chowdhury to 2 more hospitals.
What medical group is Dr. Deepshikha Nag Chowdhury part of?
Dr. Nag Chowdhury is linked to Granite State Gastroenterology. Dmand AI links Dr. Nag Chowdhury to 1 more medical group.
Does Dr. Deepshikha Nag Chowdhury accept Medicare?
Yes. CMS data shows Dr. Nag Chowdhury billed Medicare for 303 services in 2024, and Dr. Nag Chowdhury accepts Medicare assignment.
Does Dr. Deepshikha Nag Chowdhury offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nag Chowdhury as offering telehealth services.
How many Medicare patients does Dr. Deepshikha Nag Chowdhury see?
CMS counts 212 Medicare patients who saw Dr. Nag Chowdhury in 2024, with an average age of 72.
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What services does Dr. Deepshikha Nag Chowdhury bill to Medicare?
In 2024, Dr. Nag Chowdhury's most billed Medicare services were surgery: digestive system (45385), office visit, new patient (99204) and surgery: digestive system (43239).
What drugs does Dr. Deepshikha Nag Chowdhury prescribe most?
In 2024 Medicare Part D data, Dr. Nag Chowdhury's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Linzess.
Has Dr. Deepshikha Nag Chowdhury received payments from drug or device companies?
CMS Open Payments shows $3,428 in general payments to Dr. Nag Chowdhury from 23 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Deepshikha Nag Chowdhury been practicing?
Dr. Nag Chowdhury graduated from medical school in 2006, 20 years ago.
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