Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Melisa Ruiz-Gutierrez, MD, PHD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1730321779

Mrs. Melisa Ruiz-Gutierrez, MD, PHD practises Pediatric Medicine in Boston, Massachusetts. Graduated from Icahn School of Medicine at Mount Sinai in 2009, 17 years ago. Practices with Children's Hospital Pediatric Associates, Inc, a 336-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
17
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
MA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

300 Longwood Ave Karp 08215
Boston, MA 02115-5724
Phone: (617) 919-2009
Fax: (617) 730-0934
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 850 Harrison Ave # Yacc6, Boston, MA 02118-4001 — (617) 414-5946

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence 265508 (MA)

Record details

NPI number1730321779
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedApril 6, 2009
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesHEMATOLOGY, HEMATOLOGY/ONCOLOGY, MEDICAL ONCOLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2009 (17 years in practice)
Group practice Children'S Hospital Pediatric Associates, Inc — 336 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Food and Beverage $407 4 payments · a meal or drink at a meeting or visit, not a fee

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 Children's Hospital Pediatric Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 336 clinicians in the practice; 12 are shown here.

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