Katherine Ni
- Medicare services, 2024
- 29
- Medicare patients, 2024
- 43
- Part D claims, 2024
- 257
- Publications
- 7
- Hospital affiliations
- 2
- Practice address
- 4300 Alton Rd, Miami Beach, FL 33140
- Practice phone
- Call (305) 674-2121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Katherine Ni'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.
Katherine Ni is a transplant hepatology physician in New York, New York
Katherine Ni practices at Mount Sinai Medical Center in Miami Beach, Florida, part of Mount Sinai Medical Center of Florida.
Katherine Ni's NPI, 1063916062, was assigned on March 23, 2018. Katherine Ni graduated from New York University Grossman School of Medicine in 2018. Katherine Ni holds New York license 322134.
- NPI
- 1063916062NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799021432
- NPI enumeration date
- March 23, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (305) 674-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Katherine Ni practices in Miami Beach and New York
Katherine Ni's primary practice is Mount Sinai Medical Center, at 4300 Alton Rd, Miami Beach, FL 33140 in Miami-Dade County. The practice phone is (305) 674-2121. Katherine Ni also practices at Mount Sinai Medical Center, 5 E 98th St, New York, NY 10029.
- Mount Sinai Medical CenterPrimary4300 Alton Rd, Miami Beach, FL 33140 · Miami-Dade CountyPhone(305) 674-2121
- Mount Sinai Medical Center5 E 98th St, New York, NY 10029 · New York CountyPhone(212) 241-8035
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Katherine Ni is affiliated with 3 sites of care and 1 medical group
Katherine Ni's primary practice is Mount Sinai Medical Center in Miami Beach, Florida, part of Mount Sinai Medical Center of Florida. Katherine Ni is also affiliated with The Mount Sinai Hospital. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Katherine Ni 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 Katherine Ni's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Ni practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Sinai Medical Center | Available with a free account |
| +2 more affiliated sites | 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 Mount Sinai Medical Center of Florida and 6.2K+ hospitals, with verified contacts in the same login.
Katherine Ni is one of 26 transplant hepatology physicians in New York
Transplant hepatology is Katherine Ni's primary specialty in the NPI Registry, under taxonomy code 207RT0003X. Katherine Ni is licensed in New York.
Specialties and state licenses
- Transplant hepatology, New YorkPrimary
Transplant hepatology physicians near Katherine Ni
Counts of transplant hepatology physicians 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
Katherine Ni billed Medicare for 29 services in 2024
CMS data shows 29 Medicare services from Katherine Ni across 2 procedure codes in 2024, for 43 Medicare patients. Medicare paid $2,712 for them.
Where Katherine Ni's Medicare services took place, 2024
- In an office1862%
- In a facility1138%
Katherine Ni compared with the New York median for transplant hepatology physicians, 2024
- Katherine Ni
- New York median
- Medicare services
- 29vs 20486% below
- Medicare patients
- 43vs 10459% below
- Part D claims
- 102vs 8915% above
Medians across 26 transplant hepatology physicians in New York with Dmand AI profiles that report each measure.
Katherine Ni'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 Katherine Ni?
Medicare shows one payer. Book a meeting to get commercial claims data for Katherine Ni and other transplant hepatology physicians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Katherine Ni treated 43 Medicare patients in 2024, average age 68
CMS counts 43 Medicare patients who saw Katherine Ni in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 33% are also on Medicaid. Their average risk score is 3.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Katherine Ni's median patient age at 58, with 48% women.
Katherine Ni's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Katherine Ni's Medicare patients by sex, 2024
- Women1637%
- Men2763%
Chronic conditions among Katherine Ni's Medicare patients, 2024
- High blood pressure75%
- High cholesterol67%
- Chronic kidney disease53%
- Diabetes53%
- Arthritis42%
- Ischemic heart disease35%
- Heart failure30%
- Atrial fibrillation28%
Share of Medicare patients with each condition. A patient can have several.
Katherine Ni's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women48%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Katherine Ni wrote 257 Medicare Part D claims in 2024
In 2024, Katherine Ni wrote 257 Medicare Part D claims for 75 patients. 86% of them were for generic drugs. CMS names the drug for 102 of them, across 6 drugs with 11 or more claims each, at $9,829 in total drug cost. In 2023, CMS named 51 claims across 4 drugs.
Katherine Ni's Part D claims by kind of drug, 2024
- Generic220 claims86%
- Brand-name and other37 claims14%
Katherine Ni'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 Katherine Ni's Part D claims, 2024
- Antibiotics8%20 of 257 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: 512024: 102100%
Drugs named by CMS: 6 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
Katherine Ni ranks in the 45th percentile for colonoscopy in Medicare
Katherine Ni accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of colonoscopy by Katherine Ni, more than 45% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Katherine Ni ranks in Medicare procedure volume
- Colonoscopy
- 45th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Upper gastrointestinal (GI) endoscopy for acid reflux: 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)
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Katherine Ni has 7 publications on record
Dmand AI links 7 papers to Katherine Ni, published from 2017 to 2021. The most frequent topics are Corneal Stroma, Lasers, Excimer and Visual Acuity. Katherine Ni's most frequent co-authors are Scott Eliot Sherman, MD, Sanya Anand, DO and Emily Jane Gallagher, BAO, BCH, MB.
Katherine Ni's papers by year, 2017 to 2021
Topics Katherine Ni writes about most
- Corneal Stroma
- Lasers, Excimer
- Visual Acuity
- Corneal Topography
- Keratomileusis, Laser In Situ
- Medicare
- Myopia
- Refraction, Ocular
Katherine Ni's most frequent co-authors
- Scott Eliot Sherman, MD2 shared papers
- Sanya Anand, DO1 shared paper
- Emily Jane Gallagher, BAO, BCH, MB1 shared paper
Recent publications by Katherine Ni
Cancer Prev Res (Phila)
Acta Ophthalmol
See who Katherine Ni researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Katherine Ni works with, so you can find a warm path to the right transplant hepatology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Katherine Ni received $687 in industry payments from 2024 to 2025
CMS Open Payments shows 7 general payments to Katherine Ni from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 86% of the total. Gilead Sciences, Inc. paid the most, $241.
General payments to Katherine Ni by program year, 2024 to 2025
General payments to Katherine Ni by kind, 2024 to 2025
- Food and beverage$58886%
- Education$9914%
Companies that paid Katherine Ni the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Katherine Ni graduated from New York University Grossman School of Medicine
Katherine Ni graduated from New York University Grossman School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Katherine Ni'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 Affiliation DataDmand AI Practice 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Katherine Ni
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Katherine Ni's NPI number?
Katherine Ni's NPI number is 1063916062. It was assigned on March 23, 2018, and it is active in the NPI Registry.
What does Katherine Ni specialize in?
Katherine Ni is a transplant hepatology physician in New York, New York. The primary specialty in the NPI Registry is Transplant Hepatology Physician (taxonomy code 207RT0003X).
Where does Katherine Ni practice?
Katherine Ni practices at 4300 Alton Rd, Miami Beach, FL 33140. Katherine Ni also practices at 5 E 98th St, New York, NY 10029. Katherine Ni's primary practice is Mount Sinai Medical Center in Miami Beach, Florida, part of Mount Sinai Medical Center of Florida. Dmand AI also links Katherine Ni to 1 group practice or clinic.
What is Katherine Ni's office phone number?
The practice phone on file for Katherine Ni is (305) 674-2121.
What is Katherine Ni's medical license number?
Katherine Ni holds New York license 322134.
Which hospitals is Katherine Ni affiliated with?
Katherine Ni practices at Mount Sinai Medical Center in Miami Beach, Florida. Katherine Ni is also affiliated with The Mount Sinai Hospital.
What medical group is Katherine Ni part of?
Katherine Ni is linked to Mount Sinai Institute for Liver Medicine.
Does Katherine Ni accept Medicare?
Yes. CMS data shows Katherine Ni billed Medicare for 29 services in 2024, and Katherine Ni accepts Medicare assignment.
How many Medicare patients does Katherine Ni see?
CMS counts 43 Medicare patients who saw Katherine Ni in 2024, with an average age of 68.
What services does Katherine Ni bill to Medicare?
In 2024, Katherine Ni's most billed Medicare services were office visit, established patient (99213) and hospital inpatient care (99222).
Show 6 more questionsShow fewer questions
Where did Katherine Ni go to medical school?
Katherine Ni graduated from New York University Grossman School of Medicine in 2018.
What drugs does Katherine Ni prescribe most?
In 2024 Medicare Part D data, Katherine Ni's most prescribed drugs by claims were Pantoprazole Sodium, Ursodiol and Carvedilol.
Has Katherine Ni received payments from drug or device companies?
CMS Open Payments shows $687 in general payments to Katherine Ni from 5 companies from 2024 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Katherine Ni been practicing?
Katherine Ni graduated from medical school in 2018, 8 years ago.
Does Katherine Ni do research?
Dmand AI links 7 publications to Katherine Ni, published from 2017 to 2021.
Who does Katherine Ni publish with?
Katherine Ni's most frequent co-authors are Scott Eliot Sherman, MD (2 shared papers), Sanya Anand, DO (1 shared paper) and Emily Jane Gallagher, BAO, BCH, MB (1 shared paper).
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