Dr. James S. Gillin, MD
- Medicare services, 2023
- 381
- Part D claims, 2024
- 63
- Industry payments
- $1,140
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1 Diamond Hill Road, Suite 1b-142, Berkeley Heights, NJ 07922
- Practice phone
- Call (908) 273-4300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Summit Medical Group Ambulatory Surgery Center - Berkeley Heights
Surgery Center - Medicare-Certified · Berkeley Heights, New Jersey
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Dr. James S. Gillin is a gastroenterologist in Berkeley Heights, New Jersey
Dr. Gillin practices at Summit Medical Group Ambulatory Surgery Center - Berkeley Heights in Berkeley Heights, New Jersey.
Dr. Gillin's NPI, 1639167000, was assigned on October 11, 2005. Dr. Gillin graduated from Rutgers New Jersey Medical School in 1979. Dr. Gillin holds New Jersey license MA44104.
- NPI
- 1639167000NPI Registry (opens in a new tab)
- NPI enumeration date
- October 11, 2005
- NPI status
- Active
- Practice phone
- (908) 273-4300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. James S. Gillin practices at Summit Medical Group Ambulatory Surgery Center - Berkeley Heights in Berkeley Heights, New Jersey
Dr. Gillin's primary practice is Summit Medical Group Ambulatory Surgery Center - Berkeley Heights, at 1 Diamond Hill Road, Suite 1b-142, Berkeley Heights, NJ 07922. The practice phone is (908) 273-4300.
- Summit Medical Group Ambulatory Surgery Center - Berkeley Heights1 Diamond Hill Road, Suite 1b-142, Berkeley Heights, NJ 07922Phone(908) 273-4300
Source: Dmand AI Affiliation Data
Dr. James S. Gillin is affiliated with 1 site of care and 1 medical group
Dr. Gillin's primary practice is Summit Medical Group Ambulatory Surgery Center - Berkeley Heights in Berkeley Heights, New Jersey. The medical group on file is Summit Health. Dr. Gillin's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James S. Gillin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gillin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Summit Medical Group Ambulatory Surgery Center - Berkeley Heights | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James S. Gillin is one of 691 gastroenterologists in New Jersey
Gastroenterology is Dr. Gillin's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Gillin is licensed in New Jersey.
Specialties and state licenses
- Gastroenterology, New JerseyPrimary
Gastroenterologists near Dr. Gillin
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. James S. Gillin billed Medicare for 381 services in 2023
CMS data shows 381 Medicare services from Dr. Gillin across 12 procedure codes in 2023. Medicare paid $33,424 for them.
Dr. Gillin's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Surgery
- 2022: 4842023: 15668%
- Office and hospital visits
- 2022: 4832023: 13273%
- Lab and pathology
- 2022: 2422023: 6374%
- Other services
- 2022: 782023: 3062%
- Drugs given in the office
- 2022: 802023: 0100%
- Tests and treatments
- 2022: 302023: 0100%
Where Dr. Gillin's Medicare services took place, 2023
- In an office23461%
- In a facility14739%
Dr. Gillin compared with the New Jersey median for gastroenterologists, 2023
- Dr. Gillin
- New Jersey median
- Medicare services
- 381vs 68544% below
- Part D claims
- 39vs 61194% below
Medians across 674 gastroenterologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Gillin's most billed Medicare procedure codes, 2023
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. Gillin and other gastroenterologists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James S. Gillin's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Gillin's median patient age at 66, with 39% women.
Dr. Gillin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women39%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. James S. Gillin wrote 63 Medicare Part D claims in 2024
In 2024, Dr. Gillin wrote 63 Medicare Part D claims for 43 patients. 98% of them were for generic drugs. CMS names the drug for 39 of them, across 2 drugs with 11 or more claims each, at $627 in total drug cost. In 2023, CMS named 800 claims across 15 drugs.
Dr. Gillin's Part D claims by kind of drug, 2024
- Generic62 claims98%
- Brand-name and other1 claims2%
Dr. Gillin'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: 8002024: 3995%
Drugs named by CMS: 2 in 2024, 15 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
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Dr. James S. Gillin received $1,140 in industry payments from 2016 to 2023
CMS Open Payments shows 13 general payments to Dr. Gillin from 5 drug and device companies from 2016 to 2023. Travel and lodging make up the largest share, 77% of the total. Apollo Endosurgery US Inc paid the most, $913.
General payments to Dr. Gillin by program year, 2016 to 2023
General payments to Dr. Gillin by kind, 2016 to 2023
- Travel and lodging$88377%
- Food and beverage$25723%
Companies that paid Dr. Gillin the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James S. Gillin graduated from Rutgers New Jersey Medical School
Dr. Gillin graduated from Rutgers New Jersey Medical School in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James S. Gillin'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 Data |
| 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) |
| 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. James S. Gillin
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What is Dr. James S. Gillin's NPI number?
Dr. James S. Gillin's NPI number is 1639167000. It was assigned on October 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. James S. Gillin?
Dr. James S. Gillin is a gastroenterologist in Berkeley Heights, New Jersey. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. James S. Gillin practice?
Dr. Gillin practices at 1 Diamond Hill Road, Suite 1b-142, Berkeley Heights, NJ 07922. Dr. Gillin's primary practice is Summit Medical Group Ambulatory Surgery Center - Berkeley Heights in Berkeley Heights, New Jersey.
What is Dr. James S. Gillin's office phone number?
The practice phone on file for Dr. Gillin is (908) 273-4300.
What is Dr. James S. Gillin's medical license number?
Dr. Gillin holds New Jersey license MA44104.
What medical group is Dr. James S. Gillin part of?
Dr. Gillin is linked to Summit Health.
Does Dr. James S. Gillin accept Medicare?
Yes. CMS data shows Dr. Gillin billed Medicare for 381 services in 2023.
What services does Dr. James S. Gillin bill to Medicare?
In 2023, Dr. Gillin's most billed Medicare services were office visit, established patient (99213), surgery: digestive system (43239) and office visit, established patient (99214).
Where did Dr. James S. Gillin go to medical school?
Dr. Gillin graduated from Rutgers New Jersey Medical School in 1979.
What drugs does Dr. James S. Gillin prescribe most?
In 2024 Medicare Part D data, Dr. Gillin's most prescribed drugs by claims were Omeprazole and Pantoprazole Sodium.
Has Dr. James S. Gillin received payments from drug or device companies?
CMS Open Payments shows $1,140 in general payments to Dr. Gillin from 5 companies from 2016 to 2023. The largest total came from Apollo Endosurgery US Inc.
How long has Dr. James S. Gillin been practicing?
Dr. Gillin graduated from medical school in 1979, 47 years ago.
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