Dr. Katharine Pomeroy Rooney, MD
- Medicare services, 2024
- 423
- Medicare patients, 2024
- 293
- Part D claims, 2024
- 249
- MIPS score, 2024
- 93
- Hospital affiliations
- 3
- Practice address
- 1991 Marcus Avenue, Lake Success, NY 11042
- Practice phone
- Call (317) 796-7565
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
New Hyde Park Endoscopy
Surgery Center - Medicare-Certified · Lake Success, New York
Find Dr. Rooney's professional email, personal email and mobile number
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Dr. Katharine Pomeroy Rooney is an internist in New Hyde Park, New York
Dr. Rooney practices at New Hyde Park Endoscopy in Lake Success, New York.
Dr. Rooney's NPI, 1255724985, was assigned on March 4, 2015. Dr. Rooney graduated from McGaw Medical Center of Northwestern University in 2017. Dr. Rooney holds New York license 321885.
- NPI
- 1255724985NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951647254
- NPI enumeration date
- March 4, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (317) 796-7565
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katharine Pomeroy Rooney practices at New Hyde Park Endoscopy in Lake Success, New York
Dr. Rooney's primary practice is New Hyde Park Endoscopy, at 1991 Marcus Avenue, Lake Success, NY 11042. The practice phone is (317) 796-7565.
- New Hyde Park Endoscopy1991 Marcus Avenue, Lake Success, NY 11042Phone(317) 796-7565
Source: Dmand AI Affiliation Data
Dr. Katharine Pomeroy Rooney is affiliated with 5 sites of care and 1 medical group
Dr. Rooney's primary practice is New Hyde Park Endoscopy in Lake Success, New York. Dr. Rooney is also affiliated with Long Island Jewish Medical Center. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Rooney to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Katharine Pomeroy Rooney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rooney practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| New Hyde Park Endoscopy | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katharine Pomeroy Rooney is one of 9,643 internists in New York
Internal medicine is Dr. Rooney's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Rooney is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Rooney
Counts of internists 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. Katharine Pomeroy Rooney billed Medicare for 423 services in 2024
CMS data shows 423 Medicare services from Dr. Rooney across 10 procedure codes in 2024, for 293 Medicare patients. Medicare paid $42,928 for them.
Dr. Rooney's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 172024: 3632035%
- Surgery
- 2023: 02024: 48
- Tests and treatments
- 2023: 02024: 12
Where Dr. Rooney's Medicare services took place, 2024
- In an office14534%
- In a facility27866%
Dr. Rooney compared with the New York median for internists, 2024
- Dr. Rooney
- New York median
- Medicare services
- 423vs 426Close to median
- Medicare patients
- 293vs 15885% above
- Part D claims
- 184vs 62270% below
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Rooney'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katharine Pomeroy Rooney treated 293 Medicare patients in 2024, average age 74
CMS counts 293 Medicare patients who saw Dr. Rooney in 2024. The largest group is 75 to 84, with 104 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.37, 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. Rooney's median patient age at 69, with 60% women.
Dr. Rooney's Medicare patients by age, 2024
Dr. Rooney's Medicare patients by sex, 2024
- Women16356%
- Men13044%
Chronic conditions among Dr. Rooney's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes50%
- Ischemic heart disease46%
- Mood disorders37%
- Chronic kidney disease34%
- Heart failure33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rooney's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women60%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katharine Pomeroy Rooney wrote 249 Medicare Part D claims in 2024
In 2024, Dr. Rooney wrote 249 Medicare Part D claims for 101 patients. 88% of them were for generic drugs. CMS names the drug for 184 of them, across 6 drugs with 11 or more claims each, at $8,753 in total drug cost.
Dr. Rooney's Part D claims by kind of drug, 2024
- Generic218 claims88%
- Brand-name31 claims12%
Dr. Rooney'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. Rooney's Part D claims, 2024
- Antibiotics5%13 of 249 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Katharine Pomeroy Rooney 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 Dr. Rooney for performance year 2024, reported through an alternative payment model (APM). Dr. Rooney accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rooney as offering telehealth. CMS counts 64 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Rooney, more than 68% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Rooney'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.
Where Dr. Rooney ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 68th percentile64 procedures
- Colonoscopy
- 65th percentile53 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Katharine Pomeroy Rooney received $744 in industry payments from 2020 to 2023
CMS Open Payments shows 10 general payments to Dr. Rooney from 7 drug and device companies from 2020 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $257.
General payments to Dr. Rooney by program year, 2020 to 2023
Companies that paid Dr. Rooney the most, 2020 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katharine Pomeroy Rooney graduated from McGaw Medical Center of Northwestern University
Dr. Rooney graduated from McGaw Medical Center of Northwestern University in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katharine Pomeroy Rooney'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Katharine Pomeroy Rooney
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. Katharine Pomeroy Rooney's NPI number?
Dr. Katharine Pomeroy Rooney's NPI number is 1255724985. It was assigned on March 4, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Katharine Pomeroy Rooney?
Dr. Katharine Pomeroy Rooney is an internist in New Hyde Park, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Katharine Pomeroy Rooney practice?
Dr. Rooney practices at 1991 Marcus Avenue, Lake Success, NY 11042. Dr. Rooney's primary practice is New Hyde Park Endoscopy in Lake Success, New York. Dmand AI also links Dr. Rooney to 2 hospitals and 1 group practice or clinic.
What is Dr. Katharine Pomeroy Rooney's office phone number?
The practice phone on file for Dr. Rooney is (317) 796-7565.
What is Dr. Katharine Pomeroy Rooney's medical license number?
Dr. Rooney holds New York license 321885.
Which hospitals is Dr. Katharine Pomeroy Rooney affiliated with?
Dr. Rooney is affiliated with Long Island Jewish Medical Center. Dmand AI links Dr. Rooney to 2 more hospitals.
What medical group is Dr. Katharine Pomeroy Rooney part of?
Dr. Rooney is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Does Dr. Katharine Pomeroy Rooney accept Medicare?
Yes. CMS data shows Dr. Rooney billed Medicare for 423 services in 2024, and Dr. Rooney accepts Medicare assignment.
Does Dr. Katharine Pomeroy Rooney offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Rooney as offering telehealth services.
What is Dr. Katharine Pomeroy Rooney's MIPS score?
Dr. Rooney's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Dr. Katharine Pomeroy Rooney see?
CMS counts 293 Medicare patients who saw Dr. Rooney in 2024, with an average age of 74.
What services does Dr. Katharine Pomeroy Rooney bill to Medicare?
In 2024, Dr. Rooney's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and office visit, new patient (99204).
Where did Dr. Katharine Pomeroy Rooney go to medical school?
Dr. Rooney graduated from McGaw Medical Center of Northwestern University in 2017.
What drugs does Dr. Katharine Pomeroy Rooney prescribe most?
In 2024 Medicare Part D data, Dr. Rooney's most prescribed drugs by claims were Omeprazole, Famotidine and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Katharine Pomeroy Rooney received payments from drug or device companies?
CMS Open Payments shows $744 in general payments to Dr. Rooney from 7 companies from 2020 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Katharine Pomeroy Rooney been practicing?
Dr. Rooney graduated from medical school in 2017, 9 years ago.
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