1. Home
  2. Directory
  3. New Jersey
  4. Flemington
  5. Social Worker
  6. NPI Profile

MEGAN K SULLIVAN LCSW
NPI 1326485483
Social Worker - Clinical in Flemington, NJ

Active since May 30, 2013PECOS EnrolledAccepts Medicare Assignment
4 WALTER E FORAN BLVD, FLEMINGTON, NJ 08822(908) 259-4473 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 16, 2026, May 13, 2021, Mar 17, 2021 (3 updates tracked since 2021).

About Megan K Sullivan Lcsw NPPES

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

MEGAN K SULLIVAN LCSW (NPI 1326485483) is an individual clinical provider in Flemington, New Jersey, licensed in New Jersey (44SC05647300) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Flemington, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1326485483
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMEGAN K SULLIVANCredential: LCSW
Location Address4 WALTER E FORAN BLVDFlemington, NJ 08822-4664
Mailing Address3 Partridge RdFlemington, NJ 08822-7118 · (908) 259-4473
Phone(908) 259-4473
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateMay 30, 2013
Last NPPES UpdateMarch 16, 20263 updates tracked since enumeration
NPPES CertifiedMarch 16, 2026
✔ NPI 1326485483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NJ · 44SC05647300
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
4 WALTER E FORAN BLVD, Flemington, NJ 08822
Open in Google Maps ↗

Secondary Practice Location 1

Location 13 Partridge RdFlemington, NJ 08822-7118 · Phone (908) 259-4473

Accepted Insurance

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

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

Megan K Sullivan Lcsw 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 ID9335557883
PECOS Enrollment IDI20210421001884
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 Megan Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mks Psychotherapy
3.5 mi
Clinical
3 PARTRIDGE RD
Flemington, NJ 08822
  • Reassigned Medicare billing, New Jersey enrollment
NPI 1205776366 (908) 403-3668

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08822 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
$0.00 typical visit price
range $63.84 – $190.92
Typical copayment $0.00 (range $15.96 – $47.73)
Most-billed visit code NA
Established Patient
$79.09 typical visit price
range $20.97 – $155.92
Typical copayment $19.77 (range $5.24 – $38.98)
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 20

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

IDAJO M PARENTE PT
Physical Therapist
4 WALTER E FORAN BLVD, SUITE 203
FLEMINGTON, NJ 08822
Hunterdon County (908) 237-0000
DANIEL M PFAU DPT
Physical Therapist
4 WALTER E FORAN BLVD, SUITE 203
FLEMINGTON, NJ 08822
Hunterdon County (908) 237-0000
DR. DARREN EDWARD LOEW D.D.S.
Dentist (Orthodontics and Dentofacial Orthopedics)
4 WALTER E FORAN BLVD, SUITE 205
FLEMINGTON, NJ 08822
Hunterdon County (908) 782-7626
MRS. SUZANNE DAWN PHILLIPS RN, APN, ACNP-BC
Nurse Practitioner
4 WALTER E FORAN BLVD, SUITE 101
FLEMINGTON, NJ 08822
Hunterdon County (908) 782-3204
DR. ROBERT BRUCE BOWDEN DMD
Dentist (General Practice)
4 WALTER E FORAN BLVD, SUITE 305
FLEMINGTON, NJ 08822
Hunterdon County (908) 782-5076
DR. JONATHON SMYTHE BOWDEN D.M.D.
Dentist (General Practice)
4 WALTER E FORAN BLVD, SUITE 305
FLEMINGTON, NJ 08822
Hunterdon County (908) 782-5076
ADVANCED OBSTETRIC & GYN LLC
Obstetrics & Gynecology
4 WALTER E FORAN BLVD, SUITE 302
FLEMINGTON, NJ 08822
Hunterdon County (908) 806-0080
DR. DEIRDRE C MASTERTON MD
Obstetrics & Gynecology
4 WALTER E FORAN BLVD, SUITE 302
FLEMINGTON, NJ 08822
Hunterdon County (908) 284-5295

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 Megan Sullivan's NPI number?

The NPI number for Megan Sullivan is 1326485483. It was assigned to this individual provider in the NPPES registry on May 30, 2013.

Where is Megan Sullivan located?

Megan Sullivan practices at 4 Walter E Foran Blvd, Flemington, NJ 08822. The listed phone number is (908) 259-4473.

What is Megan Sullivan's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Megan Sullivan enrolled in Medicare?

Yes. Megan Sullivan 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 organization bills Medicare for Megan Sullivan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Sullivan reassigns Medicare benefits to Mks Psychotherapy (Flemington, NJ). 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 Megan Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Megan Sullivan accept?

Health plans from Oscar Health list Megan Sullivan 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 Megan Sullivan was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.