Dr. Gary A. Gwertzman, MD
- Medicare services, 2024
- 1,192
- Medicare patients, 2024
- 580
- Part D claims, 2024
- 80
- Hospital affiliations
- 1
- Industry payments
- $8,569
- Practice address
- 3131 Kings Hwy, Brooklyn, NY 11234
- Practice phone
- Call (212) 731-7650
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Department of Mount Sinai School of Medicine
Brooklyn, New York
Find Dr. Gwertzman'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. Gary A. Gwertzman is a vascular surgeon in Brooklyn, New York
Dr. Gwertzman practices at Surgery Department of Mount Sinai School of Medicine in Brooklyn, New York.
Dr. Gwertzman's NPI, 1871571679, was assigned on January 3, 2006. Dr. Gwertzman graduated from Albert Einstein College of Medicine of Yeshiva University in 1991. Dr. Gwertzman holds New York license 193557-1.
- NPI
- 1871571679NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860404522
- NPI enumeration date
- January 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 731-7650
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary A. Gwertzman practices at Surgery Department of Mount Sinai School of Medicine in Brooklyn, New York
Dr. Gwertzman's primary practice is Surgery Department of Mount Sinai School of Medicine, at 3131 Kings Hwy, Brooklyn, NY 11234 in Kings County. The practice phone is (212) 731-7650.
- Surgery Department of Mount Sinai School of Medicine3131 Kings Hwy, Brooklyn, NY 11234 · Kings CountyPhone(212) 731-7650
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gary A. Gwertzman is affiliated with 4 sites of care and 2 medical groups
Dr. Gwertzman's primary practice is Surgery Department of Mount Sinai School of Medicine in Brooklyn, New York. Dr. Gwertzman is also affiliated with Mount Sinai Beth Israel. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Gwertzman to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gary A. Gwertzman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gwertzman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Department of Mount Sinai School of Medicine | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gary A. Gwertzman is one of 364 vascular surgeons in New York
Vascular surgery is Dr. Gwertzman's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Gwertzman is licensed in New York.
Specialties and state licenses
- Vascular surgery, New YorkPrimary
Vascular surgeons near Dr. Gwertzman
Counts of vascular surgeons 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. Gary A. Gwertzman billed Medicare for 1,192 services in 2024
CMS data shows 1,192 Medicare services from Dr. Gwertzman across 14 procedure codes in 2024, for 580 Medicare patients. Medicare paid $90,832 for them.
Dr. Gwertzman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 6702024: 52122%
- Office and hospital visits
- 2023: 4532024: 4462%
- Surgery
- 2023: 942024: 14150%
- Imaging
- 2023: 1682024: 8450%
Where Dr. Gwertzman's Medicare services took place, 2024
- In an office64954%
- In a facility54346%
Dr. Gwertzman compared with the New York median for vascular surgeons, 2024
- Dr. Gwertzman
- New York median
- Medicare services
- 1,192vs 70170% above
- Medicare patients
- 580vs 33872% above
- Part D claims
- 34vs 5841% below
Medians across 356 vascular surgeons in New York with Dmand AI profiles that report each measure.
Dr. Gwertzman'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. Gwertzman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gwertzman and other vascular surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary A. Gwertzman treated 580 Medicare patients in 2024, average age 78
CMS counts 580 Medicare patients who saw Dr. Gwertzman in 2024. The largest group is 75 to 84, with 222 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 2.80, 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. Gwertzman's median patient age at 70, with 57% women.
Dr. Gwertzman's Medicare patients by age, 2024
Dr. Gwertzman's Medicare patients by sex, 2024
- Women33157%
- Men24943%
Chronic conditions among Dr. Gwertzman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes72%
- Arthritis62%
- Ischemic heart disease61%
- Chronic kidney disease46%
- Heart failure44%
- Mood disorders37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gwertzman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women57%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary A. Gwertzman wrote 80 Medicare Part D claims in 2024
In 2024, Dr. Gwertzman wrote 80 Medicare Part D claims for 40 patients. 69% of them were for generic drugs. CMS names the drug for 34 of them, across 2 drugs with 11 or more claims each, at $13,374 in total drug cost. In 2023, CMS named 96 claims across 4 drugs.
Dr. Gwertzman's Part D claims by kind of drug, 2024
- Generic55 claims69%
- Brand-name25 claims31%
Dr. Gwertzman'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: 3465%
Drugs named by CMS: 2 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
Dr. Gary A. Gwertzman ranks in the 76th percentile for leg revascularization (restoring blood flow) in Medicare
Dr. Gwertzman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 17 procedures of leg revascularization (restoring blood flow) by Dr. Gwertzman, more than 76% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Gwertzman ranks in Medicare procedure volume
- Varicose vein removal
- 55th percentile18 procedures
- Leg revascularization (restoring blood flow)
- 76th percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gary A. Gwertzman received $8,569 in industry payments from 2016 to 2025
CMS Open Payments shows 215 general payments to Dr. Gwertzman from 23 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Medtronic, Inc. paid the most, $1,771.
General payments to Dr. Gwertzman by program year, 2016 to 2025
General payments to Dr. Gwertzman by kind, 2016 to 2025
- Food and beverage$7,89892%
- Travel and lodging$6518%
- Education$200%
Companies that paid Dr. Gwertzman 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. Gary A. Gwertzman graduated from Albert Einstein College of Medicine of Yeshiva University
Dr. Gwertzman graduated from Albert Einstein College of Medicine of Yeshiva University in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary A. Gwertzman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Gary A. Gwertzman
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. Gary A. Gwertzman's NPI number?
Dr. Gary A. Gwertzman's NPI number is 1871571679. It was assigned on January 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary A. Gwertzman?
Dr. Gary A. Gwertzman is a vascular surgeon in Brooklyn, New York. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Gary A. Gwertzman practice?
Dr. Gwertzman practices at 3131 Kings Hwy, Brooklyn, NY 11234. Dr. Gwertzman's primary practice is Surgery Department of Mount Sinai School of Medicine in Brooklyn, New York. Dmand AI also links Dr. Gwertzman to 2 group practices and clinics and 1 medical group.
What is Dr. Gary A. Gwertzman's office phone number?
The practice phone on file for Dr. Gwertzman is (212) 731-7650.
What is Dr. Gary A. Gwertzman's medical license number?
Dr. Gwertzman holds New York license 193557-1.
Which hospitals is Dr. Gary A. Gwertzman affiliated with?
Dr. Gwertzman is affiliated with Mount Sinai Beth Israel.
What medical group is Dr. Gary A. Gwertzman part of?
Dr. Gwertzman is linked to Mount Sinai Institute for Liver Medicine. Dmand AI links Dr. Gwertzman to 1 more medical group.
Does Dr. Gary A. Gwertzman accept Medicare?
Yes. CMS data shows Dr. Gwertzman billed Medicare for 1,192 services in 2024, and Dr. Gwertzman accepts Medicare assignment.
How many Medicare patients does Dr. Gary A. Gwertzman see?
CMS counts 580 Medicare patients who saw Dr. Gwertzman in 2024, with an average age of 78.
What services does Dr. Gary A. Gwertzman bill to Medicare?
In 2024, Dr. Gwertzman's most billed Medicare services were office visit, established patient (99213), blood vessel study (93970) and blood vessel study (93971).
Show 4 more questionsShow fewer questions
Where did Dr. Gary A. Gwertzman go to medical school?
Dr. Gwertzman graduated from Albert Einstein College of Medicine of Yeshiva University in 1991.
What drugs does Dr. Gary A. Gwertzman prescribe most?
In 2024 Medicare Part D data, Dr. Gwertzman's most prescribed drugs by claims were Eliquis and Triamcinolone Acetonide.
Has Dr. Gary A. Gwertzman received payments from drug or device companies?
CMS Open Payments shows $8,569 in general payments to Dr. Gwertzman from 23 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Gary A. Gwertzman been practicing?
Dr. Gwertzman graduated from medical school in 1991, 35 years ago.
Selling to vascular surgery practices?
See vascular 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