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OLIMPIA WELSH
NPI 1790618908
Family Medicine in Williamstown, NJ

Active since June 05, 2026PECOS EnrolledAccepts Medicare Assignment
339 MARISSA CT, WILLIAMSTOWN, NJ 08094(609) 805-7557 Get Directions Write a Review

NPPES record last updated: June 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Olimpia Welsh NPPES

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

OLIMPIA WELSH (NPI 1790618908) is an individual family medicine provider in Williamstown, New Jersey, licensed in New Jersey (26NJ15586700) and active in the NPI registry since June 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1790618908
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameOLIMPIA WELSH
Location Address339 MARISSA CTWilliamstown, NJ 08094-3644
Mailing Address339 Marissa CtWilliamstown, NJ 08094-3644
Phone(609) 805-7557
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJune 5, 2026
NPPES CertifiedJune 5, 2026
✔ NPI 1790618908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in NJ · 26NJ15586700
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
339 MARISSA CT, Williamstown, NJ 08094
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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 and accepts Medicare assignment

Olimpia Welsh 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 ID9537623103
PECOS Enrollment IDI20260714004970
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 Olimpia Welsh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Drx Paramus, LLC
101 mi
Urgent Care
67 E RIDGEWOOD AVE, UNIT C
Paramus, NJ 07652
  • Reassigned Medicare billing, New Jersey enrollment
  • 144 clinicians in this Medicare group
NPI 1316272685 (201) 262-2010

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 08094 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
$94.90 typical visit price
range $61.59 – $185.05
Typical copayment $23.72 (range $15.39 – $46.26)
Most-billed visit code 99203
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
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.

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 Olimpia Welsh's NPI number?

The NPI number for Olimpia Welsh is 1790618908. It was assigned to this individual provider in the NPPES registry on June 5, 2026.

Where is Olimpia Welsh located?

Olimpia Welsh practices at 339 Marissa Ct, Williamstown, NJ 08094. The listed phone number is (609) 805-7557.

What is Olimpia Welsh's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Olimpia Welsh enrolled in Medicare?

Yes. Olimpia Welsh 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 Olimpia Welsh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olimpia Welsh reassigns Medicare benefits to Drx Paramus, LLC (Paramus, 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 Olimpia Welsh'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 Olimpia Welsh was last updated on June 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.