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

Dr. Maria Leonova, DO

Individual provider Anesthesiology Physician · NPI 1891029211

Dr. Maria Leonova, DO practises Anesthesiology in New Haven, Connecticut. Qualified in 1993, 33 years ago. Practices with Yale University, a 2,618-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
33
Licensed in
CT
In the registry since
2009
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

20 York St # T209 Yale-New Haven Hospital
New Haven, CT 06510-3220 Not confirmed with CMS for 16 years — call before visiting
Phone: (203) 688-2259
Fax: (203) 688-5599
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 48290 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1891029211
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedOctober 1, 2009
Last updated in NPPESDecember 11, 2009

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients80
Services billed 80 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 Yale University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2618 clinicians in the practice; 12 are shown here.

Other providers in New Haven