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DIANE M SIXSMITH MD
NPI 1043237779
Emergency Medicine in Flushing, NY

Active since July 17, 2006PECOS Enrolled
56-45 MAIN ST, NEW YORK HOSPITAL MEDICAL CENTER OF QUEENS EMERGENCY DE, FLUSHING, NY 11355(718) 670-1231(516) 437-4167 Get Directions Write a Review

NPPES record last updated: November 2, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Diane M Sixsmith Md NPPES

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

DIANE M SIXSMITH MD (NPI 1043237779) is an individual emergency medicine provider in Flushing, New York, licensed in New York (122203) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (1973).

NPPES Registry Identity

NPI1043237779
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDIANE M SIXSMITHCredential: MD
Location Address56-45 MAIN ST, NEW YORK HOSPITAL MEDICAL CENTER OF QUEENS EMERGENCY DEFlushing, NY 11355
Mailing Address1981 Marcus Ave, Suite 208New Hyde Park, NY 11042-1038 · (718) 670-1651 · Fax (516) 437-4167
Phone(718) 670-1231
Fax(516) 437-4167
Sole ProprietorNo
Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 1973
Enumeration DateJuly 17, 2006
Last NPPES UpdateNovember 2, 2010
✔ NPI 1043237779 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NY · 122203
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
56-45 MAIN ST, Flushing, NY 11355
Open in Google Maps ↗

Other Identifiers 4

Medicare PINP00613922NY
Medicaid00229896NY
Medicare PING400000481NY
Medicare UPINB13519

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane M Sixsmith Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9335128636
PECOS Enrollment IDI20080923000210
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 Reassignments

3

Medicare enrollment records show Diane Sixsmith reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Quickmed Medical P.C.
7.0 mi
Emergency Medical Services
175 E 96TH ST
New York, NY 10128
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Quickmed Medical PC
  • 7 clinicians in this Medicare group
NPI 1003253030 (646) 668-5401
Optum Urgent Care, PLLC
15 mi
Urgent Care
555 N BROADWAY
Jericho, NY 11753
  • Reassigned Medicare billing, New York enrollment
  • 413 clinicians in this Medicare group
NPI 1285975797 (516) 622-6000
Optum Medical Care, P.C.
32 mi
Cardiovascular Disease
90 SOUTH BEDFORD RD, MT KISCO MEDICAL GROUP PC
Mount Kisco, NY 10549
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Optum Medical Care PC
  • 1,601 clinicians in this Medicare group
NPI 1982643003 (914) 241-1050

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

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
140 services112 patients
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811
This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
76 services68 patients
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
50 services50 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
49 services49 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
26 services24 patients
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880
A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.
22 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11355 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.17 typical visit price
range $67.00 – $201.98
Typical copayment $26.04 (range $16.75 – $50.49)
Most-billed visit code 99203
Established Patient
$116.96 typical visit price
range $21.62 – $163.52
Typical copayment $29.24 (range $5.40 – $40.88)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. TERESA ANN MCCANN M.D.
Hospitalist
56-45 MAIN ST, RM 4134N
FLUSHING, NY 11355
Queens County (718) 670-1808
ERICA ROSALIND WATERMAN MD
Pediatrics
56-45 MAIN ST, NEW YORK HOSPITAL MEDICAL CENTER OF QUEENS EMERGENCY DE
FLUSHING, NY 11355
Queens County (718) 670-1231
JUSTIN SONG DO
Student in an Organized Health Care Education/Training Program
56-45 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-1507
JUSTIN SHIRAH
Student in an Organized Health Care Education/Training Program
56-45 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-1507
MRS. MARISA A RODRIGUEZ PA-C
Physician Assistant
56-45 MAIN ST, NEW YORK HOSPITAL MEDICAL CENTER OF QUEEN EMERGENCY DEP
FLUSHING, NY 11355
Queens County (718) 670-1231
DR. JENNY CHENG JIN MD
Pediatrics (Neonatal-Perinatal Medicine)
56-45 MAIN ST
QUEENS, NY 11355
Queens County (718) 670-2007
SETH H GOLDBARG MD
Internal Medicine (Clinical Cardiac Electrophysiology)
56-45 MAIN ST, NEW YORK HOSPITAL QUEENS
FLUSHING, NY 11355
Queens County (718) 670-2388
SHRAVAN THIAGARAJAN
Student in an Organized Health Care Education/Training Program
56-45 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-2000

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 Diane Sixsmith's NPI number?

The NPI number for Diane Sixsmith is 1043237779. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Diane Sixsmith located?

Diane Sixsmith practices at 56-45 Main St New York Hospital Medical Center Of Queens Emergency De, Flushing, NY 11355. The listed phone number is (718) 670-1231.

What is Diane Sixsmith's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Diane Sixsmith enrolled in Medicare?

Yes. Diane Sixsmith is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Diane Sixsmith's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Sixsmith reassigns Medicare benefits to 3 organizations: Quickmed Medical P.C. (New York, NY), Optum Urgent Care, PLLC (Jericho, NY) and Optum Medical Care, P.C. (Mount Kisco, NY). Each 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 Diane Sixsmith'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 Diane Sixsmith was last updated on November 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.