Ryan Zagalsky, AGACNP-BC, APRN, MS
- Medicare patients, 2024
- 929
- Part D claims, 2024
- 1,518
- MIPS score, 2024
- 99
- Affiliated sites
- 5
- Medical groups
- 2
- Practice address
- 81 Holly Hill Ln, Greenwich, CT 06830
- Practice phone
- Call (212) 233-3040
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medical Associate of Wall Street
Greenwich, Connecticut
Find Ryan Zagalsky'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.
Ryan Zagalsky is an acute care nurse practitioner in Greenwich, Connecticut
Ryan Zagalsky practices at Medical Associate of Wall Street in Greenwich, Connecticut.
Ryan Zagalsky's NPI, 1053834879, was assigned on July 24, 2017. Ryan Zagalsky graduated from Georgetown University School of Medicine in 2017. Ryan Zagalsky holds New York license F431176-01.
- NPI
- 1053834879NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537425194
- NPI enumeration date
- July 24, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 233-3040
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Ryan Zagalsky practices at Medical Associate of Wall Street in Greenwich, Connecticut
Ryan Zagalsky's primary practice is Medical Associate of Wall Street, at 81 Holly Hill Ln, Greenwich, CT 06830 in Western Ct County. The practice phone is (212) 233-3040.
- Medical Associate of Wall Street81 Holly Hill Ln, Greenwich, CT 06830 · Western Ct CountyPhone(212) 233-3040
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ryan Zagalsky is affiliated with 6 sites of care and 2 medical groups
Ryan Zagalsky's primary practice is Medical Associate of Wall Street in Greenwich, Connecticut. The medical group on file is Greenwich Medical Associates. Dmand AI also links Ryan Zagalsky to 3 more home health agencies, 2 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 Ryan Zagalsky's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ryan Zagalsky practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medical Associate of Wall Street | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Ryan Zagalsky is one of 321 acute care nurse practitioners in Connecticut
Acute care is Ryan Zagalsky's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Dmand AI has Ryan Zagalsky's licenses on file in 3 states: New York, New Jersey and Washington.
Specialties and state licenses
- Acute care nurse practitioner, New YorkPrimary
- Registered nurse, New Jersey
- Critical care medicine nurse practitioner, Washington
Acute care nurse practitioners near Ryan Zagalsky
Counts of acute care nurse practitioners 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
Ryan Zagalsky treated 929 Medicare patients in 2024, average age 83
CMS counts 929 Medicare patients who saw Ryan Zagalsky in 2024. The largest group is 85 and over, with 456 patients. 75% of them have arthritis, and 75% have diabetes. 98% are also on Medicaid. Their average risk score is 2.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Ryan Zagalsky's median patient age at 82, with 64% women.
Ryan Zagalsky's Medicare patients by age, 2024
Ryan Zagalsky's Medicare patients by sex, 2024
- Women65571%
- Men27429%
Chronic conditions among Ryan Zagalsky's Medicare patients, 2024
- Arthritis75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease70%
- Mood disorders63%
- Depression60%
- Alzheimer's and dementia53%
Share of Medicare patients with each condition. A patient can have several.
Ryan Zagalsky's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 82
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ryan Zagalsky wrote 1,518 Medicare Part D claims in 2024
In 2024, Ryan Zagalsky wrote 1,518 Medicare Part D claims for 264 patients. 67% of them were for generic drugs.
Ryan Zagalsky's Part D claims by kind of drug, 2024
- Generic1,017 claims67%
- Brand-name432 claims28%
- Other69 claims5%
Drug classes CMS tracks in Ryan Zagalsky's Part D claims, 2024
- Antibiotics2%35 of 1,518 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Ryan Zagalsky scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Ryan Zagalsky for performance year 2024, reported as part of a group. Ryan Zagalsky accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Ryan Zagalsky as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Ryan Zagalsky's MIPS scores, performance year 2024
- 99of 100Final score
- 77.2of 100Quality
- 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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Ryan Zagalsky graduated from Georgetown University School of Medicine
Ryan Zagalsky graduated from Georgetown University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Ryan Zagalsky'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 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) |
| 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 Ryan Zagalsky
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ryan Zagalsky's NPI number?
Ryan Zagalsky's NPI number is 1053834879. It was assigned on July 24, 2017, and it is active in the NPI Registry.
What does Ryan Zagalsky specialize in?
Ryan Zagalsky is an acute care nurse practitioner in Greenwich, Connecticut. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Ryan Zagalsky practice?
Ryan Zagalsky practices at 81 Holly Hill Ln, Greenwich, CT 06830. Ryan Zagalsky's primary practice is Medical Associate of Wall Street in Greenwich, Connecticut. Dmand AI also links Ryan Zagalsky to 3 home health agencies, 2 group practices and clinics and 1 medical group.
What is Ryan Zagalsky's office phone number?
The practice phone on file for Ryan Zagalsky is (212) 233-3040.
What is Ryan Zagalsky's medical license number?
Ryan Zagalsky holds New York license F431176-01, one of the licenses on file in 3 states.
Which states has Ryan Zagalsky been licensed in?
Dmand AI has state licenses on file for Ryan Zagalsky in New York, New Jersey and Washington.
What medical group is Ryan Zagalsky part of?
Ryan Zagalsky is linked to Greenwich Medical Associates. Dmand AI links Ryan Zagalsky to 1 more medical group.
Does Ryan Zagalsky accept Medicare?
Yes. CMS lists Ryan Zagalsky as accepting Medicare assignment.
Does Ryan Zagalsky offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Ryan Zagalsky as offering telehealth services.
What is Ryan Zagalsky's MIPS score?
Ryan Zagalsky's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
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How many Medicare patients does Ryan Zagalsky see?
CMS counts 929 Medicare patients who saw Ryan Zagalsky in 2024, with an average age of 83.
Where did Ryan Zagalsky go to medical school?
Ryan Zagalsky graduated from Georgetown University School of Medicine in 2017.
How long has Ryan Zagalsky been practicing?
Ryan Zagalsky graduated from medical school in 2017, 9 years ago.
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