Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Miss. Cassie Greene O'Hara, CNM

Individual provider Advanced Practice Midwife · NPI 1679903553

Miss. Cassie Greene O'Hara, CNM is registered under Certified Nurse Midwife (CNM) in Brooklyn, New York. Qualified in 2013, 13 years ago. Practices with New York City Health and Hospitals Corporation, a 538-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
13
Licensed in
NY
In the registry since
2013
Specialties on file
2
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

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Practice location Address checks out

263 7th Ave
Brooklyn, NY 11215-7247
Phone: (187) 369-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Midwife (primary) Taxonomy 176B00000X · Licence 001566 (NY)
Advanced Practice Midwife Taxonomy 367A00000X · Licence 8375840 (NY)

Record details

NPI number1679903553
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedNovember 14, 2013
Last updated in NPPESMarch 7, 2023
Certification dateMarch 7, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED NURSE MIDWIFE (CNM)
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice New York City Health And Hospitals Corporation — 538 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $17 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at New York City Health and Hospitals Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 538 clinicians in the practice; 12 are shown here.

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