Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Ruby Mei Ko, NP

Individual provider Advanced Practice Midwife · NPI 1992732275

MS. Ruby Mei Ko, NP is registered under Certified Nurse Midwife (CNM) in New York, New York. Qualified in 1988, 38 years ago. Practices with New York City Health and Hospitals Corporation, a 538-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
38
Licensed in
NY
In the registry since
2006
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

227 Madison St
New York, NY 10002
Phone: (212) 238-7244
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 227 Madison St, New York, NY 10002-7537 — (212) 238-7244
  • 268 Canal St, New York, NY 10013-3599 — (212) 966-0228

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence 000695 (NY)

Record details

NPI number1992732275
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedJune 26, 2006
Last updated in NPPESJune 12, 2019

Medicare enrollment

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

Medicare specialtyCERTIFIED NURSE MIDWIFE (CNM)
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice New York City Health And Hospitals Corporation — 538 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Other providers in New York