Dr. Gavin Martin Gassen, MD
- Medicare services, 2024
- 621
- Medicare patients, 2024
- 257
- Part D claims, 2024
- 243
- Hospital affiliations
- 3
- Industry payments
- $4,770
- Practice address
- 21 Reade Place Suite 3300, Poughkeepsie, NY 12601
- Practice phone
- Call (845) 454-0222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bridgeview Endoscopy
Surgery Center - Medicare-Certified · Poughkeepsie, New York
Find Dr. Gassen's professional email, personal email and mobile number
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Dr. Gavin Martin Gassen is an otolaryngologist in Poughkeepsie, New York
Dr. Gassen practices at Bridgeview Endoscopy in Poughkeepsie, New York.
Dr. Gassen's NPI, 1508836636, was assigned on January 23, 2006. Dr. Gassen graduated from Tulane University School of Medicine in 1992. Dr. Gassen holds Louisiana license 021693.
- NPI
- 1508836636NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557527215
- NPI enumeration date
- January 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (845) 454-0222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gavin Martin Gassen practices at Bridgeview Endoscopy in Poughkeepsie, New York
Dr. Gassen's primary practice is Bridgeview Endoscopy, at 21 Reade Place Suite 3300, Poughkeepsie, NY 12601. The practice phone is (845) 454-0222.
- Bridgeview Endoscopy21 Reade Place Suite 3300, Poughkeepsie, NY 12601Phone(845) 454-0222
Source: Dmand AI Affiliation Data
Dr. Gavin Martin Gassen is affiliated with 7 sites of care and 4 medical groups
Dr. Gassen's primary practice is Bridgeview Endoscopy in Poughkeepsie, New York. Dr. Gassen is also affiliated with Vassar Brothers Medical Center. The medical group on file is ENT and Allergy Associates. Dmand AI also links Dr. Gassen to 2 more hospitals, 3 medical groups, 2 group practices and clinics and 1 physician office, 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. Gavin Martin Gassen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gassen practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bridgeview Endoscopy | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gavin Martin Gassen is one of 660 otolaryngologists in New York
Otolaryngology is Dr. Gassen's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Gassen is licensed in Louisiana.
Specialties and state licenses
- Otolaryngology, LouisianaPrimary
Otolaryngologists near Dr. Gassen
Counts of otolaryngologists 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. Gavin Martin Gassen billed Medicare for 621 services in 2024
CMS data shows 621 Medicare services from Dr. Gassen across 10 procedure codes in 2024, for 257 Medicare patients. Medicare paid $43,299 for them. Every service was in an office.
Dr. Gassen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4772024: 37322%
- Surgery
- 2023: 1142024: 12711%
- Tests and treatments
- 2023: 1202024: 1211%
- Other services
- 2023: 232024: 0100%
Dr. Gassen compared with the New York median for otolaryngologists, 2024
- Dr. Gassen
- New York median
- Medicare services
- 621vs 72014% below
- Medicare patients
- 257vs 29613% below
- Part D claims
- 140vs 29853% below
Medians across 638 otolaryngologists in New York with Dmand AI profiles that report each measure.
Dr. Gassen'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. Gassen and other otolaryngologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gavin Martin Gassen treated 257 Medicare patients in 2024, average age 75
CMS counts 257 Medicare patients who saw Dr. Gassen in 2024. The largest group is 65 to 74, with 125 patients. 68% of them have high blood pressure, and 62% have high cholesterol. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gassen's median patient age at 61, with 56% women.
Dr. Gassen's Medicare patients by age, 2024
Dr. Gassen's Medicare patients by sex, 2024
- Women14657%
- Men11143%
Chronic conditions among Dr. Gassen's Medicare patients, 2024
- High blood pressure68%
- High cholesterol62%
- Diabetes32%
- Arthritis31%
- Chronic kidney disease21%
- Ischemic heart disease12%
- Osteoporosis12%
- Cancer11%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gassen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women56%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gavin Martin Gassen wrote 243 Medicare Part D claims in 2024
In 2024, Dr. Gassen wrote 243 Medicare Part D claims for 93 patients. 95% of them were for generic drugs. CMS names the drug for 140 of them, across 7 drugs with 11 or more claims each, at $5,650 in total drug cost. In 2023, CMS named 71 claims across 4 drugs.
Dr. Gassen's Part D claims by kind of drug, 2024
- Generic231 claims95%
- Brand-name12 claims5%
Dr. Gassen'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.
Drug classes CMS tracks in Dr. Gassen's Part D claims, 2024
- Antibiotics8%19 of 243 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: 712024: 14097%
Drugs named by CMS: 7 in 2024, 4 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
How Dr. Gavin Martin Gassen takes part in Medicare
Dr. Gassen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gavin Martin Gassen received $4,770 in industry payments from 2018 to 2025
CMS Open Payments shows 26 general payments to Dr. Gassen from 11 drug and device companies from 2018 to 2025. Travel and lodging make up the largest share, 62% of the total. Smith & Nephew, Inc. paid the most, $3,412.
General payments to Dr. Gassen by program year, 2018 to 2025
General payments to Dr. Gassen by kind, 2018 to 2025
- Travel and lodging$2,94362%
- Food and beverage$1,82838%
Companies that paid Dr. Gassen the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gavin Martin Gassen graduated from Tulane University School of Medicine
Dr. Gassen graduated from Tulane University School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gavin Martin Gassen'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) |
| 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. Gavin Martin Gassen
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. Gavin Martin Gassen's NPI number?
Dr. Gavin Martin Gassen's NPI number is 1508836636. It was assigned on January 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gavin Martin Gassen?
Dr. Gavin Martin Gassen is an otolaryngologist in Poughkeepsie, New York. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Gavin Martin Gassen practice?
Dr. Gassen practices at 21 Reade Place Suite 3300, Poughkeepsie, NY 12601. Dr. Gassen's primary practice is Bridgeview Endoscopy in Poughkeepsie, New York. Dmand AI also links Dr. Gassen to 2 hospitals, 3 medical groups, 2 group practices and clinics and 1 physician office.
What is Dr. Gavin Martin Gassen's office phone number?
The practice phone on file for Dr. Gassen is (845) 454-0222.
What is Dr. Gavin Martin Gassen's medical license number?
Dr. Gassen holds Louisiana license 021693.
Which hospitals is Dr. Gavin Martin Gassen affiliated with?
Dr. Gassen is affiliated with Vassar Brothers Medical Center. Dmand AI links Dr. Gassen to 2 more hospitals.
What medical group is Dr. Gavin Martin Gassen part of?
Dr. Gassen is linked to ENT and Allergy Associates. Dmand AI links Dr. Gassen to 3 more medical groups.
Does Dr. Gavin Martin Gassen accept Medicare?
Yes. CMS data shows Dr. Gassen billed Medicare for 621 services in 2024, and Dr. Gassen accepts Medicare assignment.
How many Medicare patients does Dr. Gavin Martin Gassen see?
CMS counts 257 Medicare patients who saw Dr. Gassen in 2024, with an average age of 75.
What services does Dr. Gavin Martin Gassen bill to Medicare?
In 2024, Dr. Gassen's most billed Medicare services were office visit, established patient (99214), ear, nose and throat service (92504) and office visit, new patient (99204).
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Where did Dr. Gavin Martin Gassen go to medical school?
Dr. Gassen graduated from Tulane University School of Medicine in 1992.
What drugs does Dr. Gavin Martin Gassen prescribe most?
In 2024 Medicare Part D data, Dr. Gassen's most prescribed drugs by claims were Fluticasone Propionate, Ipratropium Bromide and Omeprazole.
Has Dr. Gavin Martin Gassen received payments from drug or device companies?
CMS Open Payments shows $4,770 in general payments to Dr. Gassen from 11 companies from 2018 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. Gavin Martin Gassen been practicing?
Dr. Gassen graduated from medical school in 1992, 34 years ago.
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