Marilyn F. Jacobowitz, MD
Internal Medicine Physician · Mount Kisco, NY
Marilyn F. Jacobowitz, MD is an internal medicine physician with a practice address in Mount Kisco, New York, and NPI 1891741658, issued on May 25, 2006. Check the license (New York 182566, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Marilyn F. Jacobowitz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 182566 NY
Self-reported in NPPES; status is on the state search - Practice location
- 90 S Bedford RD, Mount Kisco, NY 10549
- Phone
- (914) 241-1050
- Enumerated
- May 25, 2006
- Record last updated
- Nov 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (914) 242-1516
- Medicaid ID
- 01597795 NY
- Medicare enrollment
- Enrolled (PECOS I20061130000381); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 90 S Bedford RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Teresa Alasio, M.D.Anatomic Pathology Physician1396705422
- Barbara Alpert, MDInternal Medicine Physician1194775536
- Kristine Arbolino, NPNurse Practitioner1164592812
- Alphonse Aversa, MDInternal Medicine Physician1053361378
- Lisa Bardack, MDInternal Medicine Physician1669421053
- Bohdan Batorfalvy, D.P.M.Podiatrist1386066439
Verify Marilyn F. Jacobowitz 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 182566Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average internal medicine physician in 2024
5,326 Medicare Part D claims for 695 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 26 claims were for opioids.
Most prescribed
- Atorvastatin Calcium623 claims
- Rosuvastatin Calcium426 claims
- Amlodipine Besylate293 claims
- Zolpidem Tartrate200 claims
- Losartan Potassium194 claims
- Hydrochlorothiazide187 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.
Bills Medicare through one group practice
- Optum Medical Care PCMount Kisco, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilyn F. Jacobowitz among 12,067 internal medicine physician records in New York
Marilyn F. Jacobowitz, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1989 · median 2002 among the 7,221 with a school on file
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 internal medicine physician records list a practice address in Mount Kisco
They are 43 of the 1,003 NPPES records with a practice address in Mount Kisco, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Mount Kisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Barbara Alpert, MDMount Kisco, NY 105491194775536
- Alphonse Aversa, MDMount Kisco, NY 105491053361378
- Lisa Bardack, MDMount Kisco, NY 105491669421053
- Bernadette Davis, MDMount Kisco, NY 105491942253323
- Paul Kandel, MDMount Kisco, NY 105491013960194
- Marla Koroly, MDMount Kisco, NY 105491780677336
- Sharon Krieger, MDMount Kisco, NY 105491255386710
- Peter Levi, MDMount Kisco, NY 105491629064217
Common questions
What is Marilyn F. Jacobowitz, MD's NPI number?
Marilyn F. Jacobowitz, MD's National Provider Identifier (NPI) is 1891741658, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn F. Jacobowitz, MD located?
The NPPES record lists a practice address at 90 S Bedford RD, Mount Kisco, NY, 10549. Phone: (914) 241-1050. Providers update this record themselves, so call before visiting.
How can I verify Marilyn F. Jacobowitz, MD's license?
NPPES lists New York license number 182566, 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 Marilyn F. Jacobowitz, MD prescribe under Medicare Part D?
In 2024, Marilyn F. Jacobowitz, MD had 5,326 Medicare Part D claims for 695 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.