Mitchell G. Kirsch, M.D.
Nephrology Physician · Stony Brook, NY
Mitchell G. Kirsch, M.D. is a nephrology physician with a practice address in Stony Brook, New York, and NPI 1184621500, issued on Jun 30, 2005. Check the license (New York 157097, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mitchell G. Kirsch
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 157097 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Route 347 Bldg 14A, Stony Brook, NY 11790
- Phone
- (631) 689-7800
- Enumerated
- Jun 30, 2005
- Record last updated
- Jan 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (631) 689-3016
- Medicaid ID
- 00947026 NY
- Medicare enrollment
- Enrolled (PECOS I20101207000854); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1981
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,049 in New York → Look up another NPI →
Also registered at 2500 Route 347 Bldg 14A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer PantolianoAdult Health Nurse Practitioner1295277572
Verify Mitchell G. Kirsch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 157097Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average nephrology physician in 2024
599 Medicare Part D claims for 136 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Chlorthalidone70 claims
- Farxiga51 claims
- Torsemide51 claims
- Potassium Chloride46 claims
- Lokelma33 claims
- Kerendia27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $661.31
26 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North Shore Hematology Oncology Associates PCStony Brook, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mitchell G. Kirsch among 1,049 nephrology physician records in New York
Mitchell G. Kirsch, M.D. is one of 1,049 nephrology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1981 · median 1999 among the 764 with a school on file
- Record last updated2020 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in New York
There are 1,049 nephrology physician records in New York.
All 1,049 in New York → Every provider in Stony Brook → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Carmichael Angeles, M.D.Stony Brook, NY 117901689671190
- Nicolae Caraiani, M.D.Stony Brook, NY 117901700887924
- Mark Finger, M.D.Stony Brook, NY 117901710984125
- Claudio Martincic, DOStony Brook, NY 117901710998182
- Brooke Moore, M.D.Stony Brook, NY 117901205833704
- Rula Abdulrahman, M.D.Stony Brook, NY 117941790180776
- Mansoor AhmedStony Brook, NY 117941366154742
- Imran ChaudhriStony Brook, NY 117941689170557
Common questions
What is Mitchell G. Kirsch, M.D.'s NPI number?
Mitchell G. Kirsch, M.D.'s National Provider Identifier (NPI) is 1184621500, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell G. Kirsch, M.D. located?
The NPPES record lists a practice address at 2500 Route 347 Bldg 14A, Stony Brook, NY, 11790. Phone: (631) 689-7800. Providers update this record themselves, so call before visiting.
How can I verify Mitchell G. Kirsch, M.D.'s license?
NPPES lists New York license number 157097, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mitchell G. Kirsch, M.D. prescribe under Medicare Part D?
In 2024, Mitchell G. Kirsch, M.D. had 599 Medicare Part D claims for 136 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Mitchell G. Kirsch, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.