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CLARE JEAN TWIST MD
NPI 1356477608
Pediatrics - Pediatric Hematology-Oncology in Buffalo, NY

Active since February 23, 2007PECOS Enrolled
ELM AND CARLTON ST, BUFFALO, NY 14263(716) 845-2300(716) 845-8003 Get Directions Write a Review

NPPES record last updated: February 12, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Clare Jean Twist Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CLARE JEAN TWIST MD (NPI 1356477608) is an individual pediatric hematology-oncology provider in Buffalo, New York, licensed in New York (283407) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356477608
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameCLARE JEAN TWISTCredential: MD
Location AddressELM AND CARLTON STBuffalo, NY 14263-0001
Mailing AddressElm And Carlton StBuffalo, NY 14263-0001 · (716) 845-2300 · Fax (716) 845-8003
Phone(716) 845-2300
Fax(716) 845-8003
Sole ProprietorNo
Enumeration DateFebruary 23, 2007
Last NPPES UpdateFebruary 12, 2021
NPPES CertifiedFebruary 12, 2021
✔ NPI 1356477608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in NY · 283407
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
ELM AND CARLTON ST, Buffalo, NY 14263
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Clare Jean Twist Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Clare Twist reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Roswell Park Cancer Institute
9.1 mi
Multi-Specialty
ELM AND CARLTON ST
Buffalo, NY 14263
  • Reassigned Medicare billing, New York enrollment
  • 602 clinicians in this Medicare group
NPI 1720036593 (716) 845-2300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MICHELLE DOYLE MCCARTHY PA
Physician Assistant
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-2300
DR. OMAR Y MIRZA DMD
Dentist
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-1067
EMILY KIRCHNER
Family Medicine
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (717) 845-2300
STEPHANIE ERIN MYSZKA F.N.P.- BC
Nurse Practitioner (Family)
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-2300
ALEXANDRA VAZQUEZ AGACNP
Nurse Practitioner (Acute Care)
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-2300
DR. DENISE MARIE JOHNSON PHARMD
Pharmacist
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-8584
DR. CALEB NATHANIEL SEAVEY MD PHD
Surgery (Surgical Oncology)
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-2300
MICHAEL S WINNICKI MD
Internal Medicine
ELM AND CARLTON ST
BUFFALO, NY 14263
Erie County (716) 845-2300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Clare Twist's NPI number?

The NPI number for Clare Twist is 1356477608. It was assigned to this individual provider in the NPPES registry on February 23, 2007.

Where is Clare Twist located?

Clare Twist practices at Elm And Carlton St, Buffalo, NY 14263. The listed phone number is (716) 845-2300.

What is Clare Twist's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Clare Twist enrolled in Medicare?

Yes. Clare Twist is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Clare Twist's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clare Twist reassigns Medicare benefits to Roswell Park Cancer Institute (Buffalo, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Clare Twist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Clare Twist was last updated on February 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.