Gregory Dumchin
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 155
- MIPS score, 2024
- 93
- Hospital affiliations
- 1
- Industry payments
- $105
- Practice address
- 100 East 77th Street, New York, NY 10075
- Practice phone
- Call (212) 434-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Gregory Dumchin'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.
Gregory Dumchin is a physician assistant in New York, New York
Gregory Dumchin practices at Lenox Hill Hospital in New York, New York, part of Northwell Health.
Gregory Dumchin's NPI, 1710318498, was assigned on December 6, 2013. Gregory Dumchin holds New York license 005746.
- NPI
- 1710318498NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800012998
- NPI enumeration date
- December 6, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 434-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory Dumchin practices at Lenox Hill Hospital in New York, New York
Gregory Dumchin's primary practice is Lenox Hill Hospital, at 100 East 77th Street, New York, NY 10075 in New York County. The practice phone is (212) 434-2000.
- Lenox Hill Hospital100 East 77th Street, New York, NY 10075 · New York CountyPhone(212) 434-2000
Source: Dmand AI Affiliation Data
Gregory Dumchin is affiliated with 2 sites of care and 1 medical group
Gregory Dumchin's primary practice is Lenox Hill Hospital in New York, New York, part of Northwell Health. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Gregory Dumchin to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gregory Dumchin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Dumchin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lenox Hill Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory Dumchin is one of 11,456 physician assistants in New York
Physician assistant is Gregory Dumchin's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gregory Dumchin is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Physician assistants near Gregory Dumchin
Counts of physician assistants 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
Gregory Dumchin treated 13 Medicare patients in 2024, average age 78
CMS counts 13 Medicare patients who saw Gregory Dumchin in 2024. The largest group is under 65, with 0 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gregory Dumchin's median patient age at 76, with 22% women.
Gregory Dumchin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Gregory Dumchin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Gregory Dumchin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women22%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gregory Dumchin wrote 155 Medicare Part D claims in 2024
In 2024, Gregory Dumchin wrote 155 Medicare Part D claims for 72 patients. 62% of them were for generic drugs.
Gregory Dumchin's Part D claims by kind of drug, 2024
- Generic96 claims62%
- Brand-name59 claims38%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Gregory Dumchin 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 Gregory Dumchin for performance year 2024, reported through an alternative payment model (APM). Gregory Dumchin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Gregory Dumchin'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.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Gregory Dumchin received $105 in industry payments in 2025
CMS Open Payments shows 2 general payments to Gregory Dumchin from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $71.
Companies that paid Gregory Dumchin the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Gregory Dumchin'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 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) |
| 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 Gregory Dumchin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory Dumchin's NPI number?
Gregory Dumchin's NPI number is 1710318498. It was assigned on December 6, 2013, and it is active in the NPI Registry.
What does Gregory Dumchin specialize in?
Gregory Dumchin is a physician assistant in New York, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gregory Dumchin practice?
Gregory Dumchin practices at 100 East 77th Street, New York, NY 10075. Gregory Dumchin's primary practice is Lenox Hill Hospital in New York, New York, part of Northwell Health. Dmand AI also links Gregory Dumchin to 1 group practice or clinic.
What is Gregory Dumchin's office phone number?
The practice phone on file for Gregory Dumchin is (212) 434-2000.
What is Gregory Dumchin's medical license number?
Gregory Dumchin holds New York license 005746.
Which hospitals is Gregory Dumchin affiliated with?
Gregory Dumchin practices at Lenox Hill Hospital in New York, New York.
What medical group is Gregory Dumchin part of?
Gregory Dumchin is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Does Gregory Dumchin accept Medicare?
Yes. CMS lists Gregory Dumchin as accepting Medicare assignment.
What is Gregory Dumchin's MIPS score?
Gregory Dumchin'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 Gregory Dumchin see?
CMS counts 13 Medicare patients who saw Gregory Dumchin in 2024, with an average age of 78.
Has Gregory Dumchin received payments from drug or device companies?
CMS Open Payments shows $105 in general payments to Gregory Dumchin from 2 companies from 2025 to 2025. The largest total came from Boston Scientific Corporation.
How long has Gregory Dumchin been practicing?
Gregory Dumchin graduated from medical school in 1995, 31 years ago.
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