1. Home
  2. Directory
  3. New York
  4. Massapequa
  5. Physician Assistant
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MISS KATIE LYNN MADLEN PA-C
NPI 1457977969
Physician Assistant in Massapequa, NY

Active since June 20, 2020PECOS EnrolledAccepts Medicare Assignment
5550 MERRICK RD, MASSAPEQUA, NY 11758(631) 673-3233 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 7, 2026, Jun 20, 2020 (2 updates tracked since 2020).

About Miss Katie Lynn Madlen Pa-c NPPES

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

MISS KATIE LYNN MADLEN PA-C (NPI 1457977969) is an individual physician assistant in Massapequa, New York, licensed in New York (025075) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1457977969
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMISS KATIE LYNN MADLENCredential: PA-C
Location Address5550 MERRICK RDMassapequa, NY 11758-6238
Mailing Address5550 Merrick RdMassapequa, NY 11758-6238 · (631) 673-3233
Phone(631) 673-3233
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateJune 20, 2020
Last NPPES UpdateJuly 7, 20262 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
✔ NPI 1457977969 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in NY · 025075
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
5550 MERRICK RD, Massapequa, NY 11758
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Miss Katie Lynn Madlen Pa-c 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 ID8022422278
PECOS Enrollment IDI20210128002611
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11758 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
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 13

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

MARGARET WELLS MT-BC
Counselor (Mental Health)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 673-3233
EVOLVE PHYSICIANS, PC
Clinic/Center (Primary Care)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 673-2333
KELLY ANN ANTIMISIARIS
Nurse Practitioner (Psychiatric/Mental Health)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 773-1096
GABRIELLE SARAH BELLAMENTE
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 673-3233
MARISSA TAYLOR
Nurse Practitioner (Psychiatric/Mental Health)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 673-1314
SHANNON MARIE SWIERAT LMSW
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (315) 601-8749
SABRINA ISLAM LMSW
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 673-3233
MR. ERIC ROBERT STROMBACH LMSW
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nassau County (631) 673-3233

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 Katie Madlen's NPI number?

The NPI number for Katie Madlen is 1457977969. It was assigned to this individual provider in the NPPES registry on June 20, 2020.

Where is Katie Madlen located?

Katie Madlen practices at 5550 Merrick Rd, Massapequa, NY 11758. The listed phone number is (631) 673-3233.

What is Katie Madlen's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Katie Madlen enrolled in Medicare?

Yes. Katie Madlen 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.

What insurance does Katie Madlen accept?

Health plans from Providence Health Plan list Katie Madlen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katie Madlen was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.