Leigh D Rosen, MD - Medicare Obstetrics/gynecology in Greenwich, CT

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Leigh D Rosen, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Greenwich, Connecticut. She went to Icahn School Of Medicine At Mount Sinai and graduated in 2013 and has 12 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Icahn School Of Medicine At Mount Sinai and her current practice location is 779 North St, Greenwich, Connecticut. You can reach out to her office (for appointments etc.) via phone at (646) 844-9602.

Leigh D Rosen is licensed to practice in New York (license number 289496) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1235574559.

Contact Information

Leigh D Rosen, MD
779 North St,
Greenwich, CT 06831-3105
(646) 844-9602
(646) 846-2310

Map and Direction




Physician's Profile

Full NameLeigh D Rosen
GenderFemale
SpecialityObstetrics/gynecology
Experience12 Years
Location779 North St, Greenwich, Connecticut
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Leigh D Rosen attended and graduated from Icahn School Of Medicine At Mount Sinai in 2013
  NPI Data:
  • NPI Number: 1235574559
  • Provider Enumeration Date: 04/30/2013
  • Last Update Date: 05/23/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8820332026
  • Enrollment ID: I20201109003002

Medical Identifiers

Medical identifiers for Leigh D Rosen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235574559NPI-NPPES
289496OtherNYNYS MEDICAL LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 289496 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Icahn School Of Medicine At Mount Sinai22646910702587

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Leigh D Rosen allows following entities to bill medicare on her behalf.
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124392212
PECOS PAC ID: 2264691070
Enrollment ID: O20120910000003
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922411065
PECOS PAC ID: 2264691070
Enrollment ID: O20140818000896
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568841930
PECOS PAC ID: 2264691070
Enrollment ID: O20151112000217

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Leigh D Rosen is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Leigh D Rosen, MD
204 Corlies Ave,
Pelham, NY 10803-1904

Ph: (646) 846-2310		Leigh D Rosen, MD
779 North St,
Greenwich, CT 06831-3105

Ph: (646) 844-9602

Reviews and Comments


Obstetrics & Gynecology Doctors in Greenwich, CT

Linda M Reid, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 644 W Putnam Ave, Greenwich, CT 06830
Phone: 203-210-2880    Fax: 203-210-2881
Dr. Patricia Eillen Palos,
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2 1/2 Dearfield Dr, Suite 101, Greenwich, CT 06831
Phone: 203-861-9586    Fax: 203-861-9587
Dr. Ecaterina Monica Moisa-babii, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 5 Perryridge Rd, Greenwich, CT 06830
Phone: 203-863-3000    
Dr. Karli Provost Goldstein, D.O.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 779 North St, Greenwich, CT 06831
Phone: 646-844-9602    Fax: 646-846-2310
Jeff G Wang, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 100 Putnam Grn, Greenwich, CT 06830
Phone: 203-774-9900    
Masahide D Kanayama, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 4 Dearfield Dr, Greenwich, CT 06831
Phone: 203-422-0477    Fax: 203-661-1607

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.