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

Mariam Totonchy

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1861839383

Mariam Totonchy practises Dermatology in New Haven, Connecticut. Graduated from University of California, Geffen School of Medicine in 2013, 13 years ago. Practices with Skin Surgery Center, P.s., a 4-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
13
Trained at
University of California, Geffen School of Medicine
Licensed in
CT
In the registry since
2013
Specialties on file
3
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

New Haven, CT

No coordinates on file. Search this address in Google Maps

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 56347 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Dermatology Physician Taxonomy 207N00000X · Licence AY2629155 (CT)

Record details

NPI number1861839383
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedMay 23, 2013
Last updated in NPPESApril 30, 2017

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Skin Surgery Center, P.S. — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Melanoma (skin cancer) excision 159 times · 96th percentile
Removal of skin cancer 677 times · 72nd percentile
Removal of skin lesions 51 times · 72nd percentile
Skin biopsy 53 times · 70th percentile

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 patients699
Services billed 2,215 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

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.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $25,361 6 payments
Food and Beverage $327 3 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $35 2 payments · travel or lodging paid or reimbursed, such as to attend a conference

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 Skin Surgery Center, P.s.

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in New Haven