Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Marsha J. Wong, NP

Works at hospitals in Hackettstown, NJ · Flemington, NJ · Morristown, NJ … · New Jersey

Summary

Marsha J. Wong, NP is a nurse practitioner at 108 Bilby Rd, Suite 305, Hackettstown, NJ 07840. Phone: (908) 813-8877. Accepts Medicare assignment. In 2024, Marsha J. Wong had 302 Original Medicare patients and 827 services. NPI 1265965172. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Marsha J. Wong, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Marsha J. Wong accept Medicare assignment?
Yes. Medicare's clinician data says Marsha J. Wong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Marsha J. Wong see?
In 2024, CMS data shows 302 Original Medicare patients and 827 services for Marsha J. Wong. This counts Original Medicare only and measures volume, not quality.
What is Marsha J. Wong's NPI number?
1265965172. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Marsha J. Wong, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients302
Services billed to Medicare827
Different services or procedures28
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)276 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)173 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)108 services
  4. Administration of influenza virus vaccine (G0008)34 services
  5. Influenza vaccine split virus, preservative free (90662)33 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis50%
  • Ischemic heart disease36%
  • Anxiety32%
  • Diabetes28%

Hospitals where Marsha J. Wong works

Medicare's Facility Affiliation Data lists Marsha J. Wong at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Ahs Hospital CorpHackettstown, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310115
  • Hunterdon Medical CenterFlemington, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 310005
  • Morristown Medical CenterMorristown, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310015
  • Newton Medical CenterNewton, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310028

Practice locations

Addresses where Marsha J. Wong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marsha J. Wong as a member of this group (CMS data updated October 2, 2026).

  • Practice Associates Medical Group1,408 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, New Jersey →

Other nurse practitioners in Hackettstown

Clinicians with the same Medicare primary specialty in Hackettstown, NJ — not a recommendation.

All nurse practitioners in Hackettstown →

Other clinicians in Practice Associates Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialNP
Graduation year2016
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265965172
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians