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DR. CHARLES MICHAEL DEFENDORF D.O.
NPI 1720528284
Internal Medicine in Monroe Township, NJ

Active since March 03, 2017PECOS EnrolledAccepts Medicare Assignment
2 CENTRE DR STE 200, MONROE TOWNSHIP, NJ 08831(609) 395-2470 Get Directions Write a Review

NPPES record last updated: March 6, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 6, 2024, Nov 9, 2022, Sep 17, 2020 and 1 more (4 updates tracked since 2017).

About Dr. Charles Michael Defendorf D.o. NPPES

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

DR. CHARLES MICHAEL DEFENDORF D.O. (NPI 1720528284) is an individual internal medicine provider in Monroe Township, New Jersey, licensed in New Jersey (25MB10843300) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and is a graduate of Rowan University School Of Osteopathic Medicine (2017).

NPPES Registry Identity

NPI1720528284
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHARLES MICHAEL DEFENDORFCredential: D.O.
Location Address2 CENTRE DR STE 200Monroe Township, NJ 08831-1564
Mailing Address2 Centre Dr Ste 200Monroe Township, NJ 08831-1564 · (609) 395-2470
Phone(609) 395-2470
Sole ProprietorNo
Medical School CMSRowan University School Of Osteopathic MedicineGraduated 2017
Enumeration DateMarch 3, 2017
Last NPPES UpdateMarch 6, 20244 updates tracked since enumeration
NPPES CertifiedMarch 6, 2024
✔ NPI 1720528284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MB10843300
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2 CENTRE DR STE 200, Monroe Township, NJ 08831
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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

Dr. Charles Michael Defendorf D.o. 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 ID8921427766
PECOS Enrollment IDI20200929001422
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 Charles Defendorf reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinical Health Care Associates Of New Jersey, PC
16 mi
Otolaryngology
719 US HIGHWAY 206 STE 101
Hillsborough, NJ 08844
  • Reassigned Medicare billing, New Jersey enrollment
  • 793 clinicians in this Medicare group
NPI 1962977249 (908) 271-2102

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

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
741 services359 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
378 services231 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
185 services185 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
91 services88 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
88 services85 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
58 services58 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Medical Center Of Princeton At Plainsboro

Acute Care Hospitals · Plainsboro, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310010
LocationOne-Five Plainsboro RoadPlainsboro, NJ 08536 · Middlesex County
Emergency services Birthing friendly

Saint Peter's University Hospital

Acute Care Hospitals · New Brunswick, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310070
Location254 Easton AveNew Brunswick, NJ 08901 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08831 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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.

Other Providers at the Same Location NPPES 2

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

DR. JOLITA MARIE AUGUSTE M.D.
Surgery
2 CENTRE DR STE 200
MONROE TOWNSHIP, NJ 08831
Middlesex County (609) 785-5870
ROSHNI PATEL APN
Nurse Practitioner
2 CENTRE DR STE 200
MONROE TOWNSHIP, NJ 08831
Middlesex County (609) 395-2470

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 Charles Defendorf's NPI number?

The NPI number for Charles Defendorf is 1720528284. It was assigned to this individual provider in the NPPES registry on March 3, 2017.

Where is Charles Defendorf located?

Charles Defendorf practices at 2 Centre Dr Ste 200, Monroe Township, NJ 08831. The listed phone number is (609) 395-2470.

What is Charles Defendorf's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Charles Defendorf enrolled in Medicare?

Yes. Charles Defendorf 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 Charles Defendorf's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Defendorf reassigns Medicare benefits to Clinical Health Care Associates Of New Jersey, PC (Hillsborough, 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 Charles Defendorf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Charles Defendorf affiliated with any hospitals?

According to CMS data, Charles Defendorf is affiliated with University Medical Center Of Princeton At Plainsboro and Saint Peter's University Hospital.

When was this NPI record last updated?

The NPPES record for Charles Defendorf was last updated on March 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.