Healthcare Providers & Facilities in Mendham, NJ
Public healthcare directory of 189 individual practitioners and 40 healthcare facilities located in Mendham, New Jersey.
Medical Specialties in Mendham
Select a specialty to view practitioner listings, practice locations, and qualifications.
All Specialties in Mendham
51 specialties with at least one listed practitioner; none has a comparison directory yet. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Allergy & Immunology (1)
- Dermatology (1)
- Dermatology - Procedural Dermatology (1)
- Family Medicine (1)
- Internal Medicine (5)
- Internal Medicine - Cardiovascular Disease (2)
- Internal Medicine - Geriatric Medicine (1)
- Internal Medicine - Interventional Cardiology (2)
- Obstetrics & Gynecology - Gynecology (1)
- Ophthalmology (1)
- Pediatrics (4)
- Preventive Medicine - Public Health & General Preventive Medicine (1)
- Psychiatry & Neurology - Neurology (1)
- Psychiatry & Neurology - Psychiatry (2)
Behavioral Health & Social Service Providers
Chiropractic Providers
Dental Providers
- Dentist (3)
- Dentist - General Practice (3)
Dietary & Nutritional Service Providers
Eye and Vision Services Providers
Other Service Providers
- Health & Wellness Coach (1)
- Health Educator (1)
- Mechanotherapist (1)
Pharmacy Service Providers
- Pharmacist (6)
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Student, Health Care
Featured Healthcare Providers in Mendham
Practitioner profiles in Mendham, NJ with recent CMS Medicare or Open Payments data.
Dr. Ronald Striano , PhD
Psychologist
Dr. Allison Connolly , MD
Internal Medicine
Alyssa Youngman , APN
Nurse Practitioner - Adult Health
Divya Patel
Physician Assistant
Christopher Waters , LPC
Counselor - Mental Health
Dr. Michael Vonpoelnitz , MD
Psychiatry & Neurology - Psychiatry
Largest Cities in New Jersey
Other New Jersey cities with a full directory, by the number of active practitioners listed in NPPES.
How Mendham compares with the U.S.
189 active clinicians list a practice address in Mendham, NJ in the NPI registry.
Mendham has fewer than 10,000 residents, so rates per 100,000 people change a lot with each clinician and are not compared here.
84% of clinicians in Mendham listed in the CMS Medicare file (21 of 25) accept Medicare assignment. That is lower than the New Jersey share of 93%.
Only 25 of 189 active clinicians in Mendham appear in the CMS Medicare file, so this share describes that smaller group.
What is Medicare assignment?
A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.
Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.
32% of clinicians in Mendham listed in the CMS Medicare file (8 of 25) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the New Jersey share of 22%.
About the telehealth indicator
The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File.
Mendham CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Mendham, NJ
Healthcare operations in Mendham, NJ encompass 189 active individual practitioners and 40 registered medical facilities across 51 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Mendham accounts for $6.5 Million across 44,366 prescription claims. 52 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.1 Million in payments reported by companies to 17 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.