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

Individual provider Obstetrics & Gynecology Physician · NPI 1326495821

Erika Marlee Ryan, MD practises Obstetrics/Gynecology in Brooklyn, New York. Graduated from University of Missouri, Columbia School of Medicine in 2016, 10 years ago. Practices with NYU Langone Hospitals, a 247-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
10
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
NY
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5610 2nd Ave
Brooklyn, NY 11220-3599
Phone: (718) 630-7942
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 150 55th St, Brooklyn, NY 11220-2508 — (718) 630-7000
  • 550 1st Ave, New York, NY 10016-6402 — (908) 229-3907

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 305298 (NY)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1326495821
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 16, 2016
Last updated in NPPESJuly 8, 2026
Certification dateJuly 8, 2026

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Nyu Langone Hospitals — 247 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of the uterus 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients17
Services billed 23 a service is one billed item, such as a visit, a test or a procedure
Average patient age56

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at NYU Langone Hospitals

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 247 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn