Doctor profile · Federal record

Dr. Marie-Genevieve Iselin, PHD

Adult Development & Aging Psychologist (CMS: Clinical Psychologist) · New York, NY

  • NPI 1093849358
  • Accepts Medicare
  • MIPS 85.0 / 100 · 2023
  • 22 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
26 W 9Th St, Suite 2C
New York, NY 100118971
(212) 228-2898
fax (212) 228-2898
Mailing address
7-13 Washington Sq N, Apt. 7
New York, NY 100036623

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
October 24, 2016
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
103TA0700X — NUCC code
State license (1)
New York #16589

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1093849358. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
424
Distinct HCPCS
2
Medicare allowed
$22,721
HCPCS Description Services Patients Avg allowed
90853 Group psychotherapy 256 27 $26
90834 Psychotherapy, 45 minutes 168 17 $96

In context: peer comparison

Among 1 peers in New York Adult Development & Aging Psychologist, average services per provider: 212. This provider delivers 2.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marie-Genevieve Iselin's medical specialty?
Dr. Marie-Genevieve Iselin practices Adult Development & Aging Psychologist in New York, NY.
Where does Dr. Marie-Genevieve Iselin practice?
Dr. Marie-Genevieve Iselin practices at 26 W 9Th St, New York, NY 100118971. Office phone: 2122282898.
What is Dr. Marie-Genevieve Iselin's NPI?
Dr. Marie-Genevieve Iselin's National Provider Identifier (NPI) is 1093849358, issued by NPPES.
Does Dr. Marie-Genevieve Iselin accept Medicare assignment?
Yes. Dr. Marie-Genevieve Iselin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marie-Genevieve Iselin commonly perform?
Top Medicare-reported procedures in 2023: Group psychotherapy (HCPCS 90853); Psychotherapy (HCPCS 90834). Source: CMS Medicare Physician & Other Practitioners file.