1. Home
  2. Directory
  3. New York
  4. Westbury
  5. Obstetrics Gynecology
  6. NPI Profile

DR. STEPHANIE R KILLEEN M.D.
NPI 1417211004
Obstetrics & Gynecology in Westbury, NY

Active since June 27, 2012PECOS EnrolledAccepts Medicare Assignment
372 POST AVE STE 106, WESTBURY, NY 11590(516) 333-1444(516) 333-2725 Get Directions Write a Review

NPPES record last updated: June 18, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 18, 2025, Mar 17, 2023, Dec 27, 2022 and 2 more (5 updates tracked since 2022).

About Dr. Stephanie R Killeen M.d. NPPES

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

DR. STEPHANIE R KILLEEN M.D. (NPI 1417211004) is an individual obstetrics & gynecology provider in Westbury, New York, licensed in New York (284804) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1417211004
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. STEPHANIE R KILLEENCredential: M.D.
Location Address372 POST AVE STE 106Westbury, NY 11590-2201
Mailing Address372 Post Ave Ste 106Westbury, NY 11590-2201 · (516) 333-1444 · Fax (516) 333-2725
Phone(516) 333-1444
Fax(516) 333-2725
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJune 27, 2012
Last NPPES UpdateJune 18, 20255 updates tracked since enumeration
NPPES CertifiedJune 18, 2025
✔ NPI 1417211004 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in NY · 284804✔ Licensed in MI · 4301116986✔ Licensed in CO · DR.0060045
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
372 POST AVE STE 106, Westbury, NY 11590
Open in Google Maps ↗

Other Names 1

Former Name (1)Dr. Stephanie Rhiannon Wilkins

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Stephanie R Killeen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315229960
PECOS Enrollment IDI20170117000704
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

5

Medicare enrollment records show Stephanie Killeen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mayer J. Saad MD P.C.
Same address
Specialist
372 POST AVENUE, SUITE 106
Westbury, NY 11590
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Mayer J Saad MD PC
  • 43 clinicians in this Medicare group
NPI 1033468509 (516) 333-1444
New York University
1,048 mi
Cardiovascular Disease
3301 QUANTUM BLVD
Boynton Beach, FL 33426
  • Reassigned Medicare billing, New York enrollment
  • 7,712 clinicians in this Medicare group
NPI 1285826438 (877) 648-2964
Intermountain Medical Group Denver, LLC
1,638 mi
Clinical
1606 PRAIRIE CENTER PKWY STE 210
Brighton, CO 80601
  • Reassigned Medicare billing, Colorado enrollment
  • 1,270 clinicians in this Medicare group
NPI 1164195673 (303) 403-6688
Montrose Regional Health Pso, LLC
1,774 mi
Pulmonary Disease
711 N TAYLOR ST STE 200
Gunnison, CO 81230
  • Reassigned Medicare billing, Colorado enrollment
  • 42 clinicians in this Medicare group
NPI 1508726688 (970) 252-2800
Montrose Memorial Hospital, Inc
1,824 mi
Sleep Medicine
900 S 4TH ST
Montrose, CO 81401
  • Reassigned Medicare billing, Colorado enrollment
  • 150 clinicians in this Medicare group
NPI 1679383798 (970) 240-7190

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 2

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
22 services17 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11590 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
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 6

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

SKYLER GABRIELLE BARCIA MD
Obstetrics & Gynecology
372 POST AVE STE 106
WESTBURY, NY 11590
Nassau County (516) 333-1444
OLUWATOYOSI ENIOLA ALAKE NP
Nurse Practitioner (Family)
372 POST AVE STE 106
WESTBURY, NY 11590
Nassau County (516) 333-1444
DAPHNE MERCER
Obstetrics & Gynecology
372 POST AVE STE 106
WESTBURY, NY 11590
Nassau County (516) 333-1444
DR. MANJIRI S. NADKARNI MD
Obstetrics & Gynecology
372 POST AVE STE 106
WESTBURY, NY 11590
Nassau County (516) 333-1444
MAGGIE YEUNG MD
Obstetrics & Gynecology
372 POST AVE STE 106
WESTBURY, NY 11590
Nassau County (516) 333-1444
DR. BLESSING AJAYI MD
Obstetrics & Gynecology
372 POST AVE STE 106
WESTBURY, NY 11590
Nassau County (516) 333-1444

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 Stephanie Killeen's NPI number?

The NPI number for Stephanie Killeen is 1417211004. It was assigned to this individual provider in the NPPES registry on June 27, 2012. The provider is also known as Dr. Stephanie Rhiannon Wilkins.

Where is Stephanie Killeen located?

Stephanie Killeen practices at 372 Post Ave Ste 106, Westbury, NY 11590. The listed phone number is (516) 333-1444.

What is Stephanie Killeen's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Stephanie Killeen enrolled in Medicare?

Yes. Stephanie Killeen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Stephanie Killeen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Killeen reassigns Medicare benefits to 5 organizations: Mayer J. Saad MD P.C. (Westbury, NY), New York University (Boynton Beach, FL), Intermountain Medical Group Denver, LLC (Brighton, CO), Montrose Regional Health Pso, LLC (Gunnison, CO) and Montrose Memorial Hospital, Inc (Montrose, CO). 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 Stephanie Killeen'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 Stephanie Killeen was last updated on June 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.