Quick answers
- Does Mary R. Yap accept Medicare assignment?
- Yes. Medicare's clinician data says Mary R. Yap 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 Mary R. Yap see?
- In 2024, CMS data shows 98 Original Medicare patients and 475 services for Mary R. Yap. This counts Original Medicare only and measures volume, not quality.
- What is Mary R. Yap's NPI number?
- 1770826034. 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 Mary R. Yap, 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 patients | 98 |
|---|---|
| Services billed to Medicare | 475 |
| Different services or procedures | 58 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)83 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)74 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)33 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)30 services
- Advance care planning, first 30 minutes (99497)21 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 cholesterol75%
- High blood pressure71%
- Arthritis46%
- Ischemic heart disease30%
- Diabetes24%
- Anxiety23%
Hospitals where Mary R. Yap works
Medicare's Facility Affiliation Data lists Mary R. Yap 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.
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310015
Practice locations
Addresses where Mary R. Yap is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Diamond Hill RdBerkeley Heights, NJ 07922 (908) 273‑4300
- 120 Eagle Rock Ave, Suite 200East Hanover, NJ 07936 (973) 607‑4911
- 477 Route 10 E, Suite 204Randolph, NJ 07869 (973) 607‑4911
Group practices
Medicare enrollment lists Mary R. Yap as a member of these groups (CMS data updated October 2, 2026).
- Summit Medical Group PA1,212 clinicians in the group
- Life Medical Group PC13 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Berkeley Heights
Clinicians with the same Medicare primary specialty in Berkeley Heights, NJ — not a recommendation.
Other clinicians in Summit Medical Group PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1770826034 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians