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MARGARET S. DUFRENEY MD
NPI 1922310705
Obstetrics & Gynecology - Obstetrics in Marlboro, NJ

Active since July 08, 2010PECOS EnrolledAccepts Medicare Assignment
479 COUNTY ROAD 520 STE A202, MARLBORO, NJ 07746(732) 837-1130 Get Directions Write a Review

NPPES record last updated: May 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 8, 2026, Apr 25, 2019, Oct 4, 2018 (3 updates tracked since 2018).

About Margaret S. Dufreney Md NPPES

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

MARGARET S. DUFRENEY MD (NPI 1922310705) is an individual obstetrics provider in Marlboro, New Jersey, licensed in New Jersey (25MA10416100) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS, is affiliated with Centrastate Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1922310705
Entity TypeIndividualFemale
Primary Taxonomy207VX0000X
Provider Legal NameMARGARET S. DUFRENEYCredential: MD
Location Address479 COUNTY ROAD 520 STE A202Marlboro, NJ 07746-1087
Mailing Address331 Newman Springs Rd, Bldg 2, Ste 220Red Bank, NJ 07701-5688
Phone(732) 837-1130
Sole ProprietorNo
Medical School CMSPennsylvania State University College Of MedicineGraduated 2006
Enumeration DateJuly 8, 2010
Last NPPES UpdateMay 8, 20263 updates tracked since enumeration
NPPES CertifiedMay 8, 2026
✔ NPI 1922310705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · ObstetricsAllopathic & Osteopathic Physicians
Taxonomy Code207VX0000X
License✔ Licensed in NJ · 25MA10416100
Definition
A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 257582 (NY), 25MA10416100 (NJ)
479 COUNTY ROAD 520 STE A202, Marlboro, NJ 07746
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11945 Route 33Neptune, NJ 07753-4488 · Phone (732) 776-3790
Location 250 W 77th StNew York, NY 10024-5116 · Phone (212) 579-6000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Margaret S. Dufreney Md 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 ID3971797549
PECOS Enrollment IDI20190724000448
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.

Areas of Expertise CMS Part B claims

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.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Centrastate Medical Center

Acute Care Hospitals · Freehold, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310111
Location901 West Main StreetFreehold, NJ 07728 · Monmouth County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07746 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
$140.34 typical visit price
range $61.59 – $185.05
Typical copayment $35.08 (range $15.39 – $46.26)
Most-billed visit code 99204
Established Patient
$76.45 typical visit price
range $20.08 – $150.98
Typical copayment $19.11 (range $5.02 – $37.74)
Most-billed visit code 99213
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 Margaret Dufreney's NPI number?

The NPI number for Margaret Dufreney is 1922310705. It was assigned to this individual provider in the NPPES registry on July 8, 2010.

Where is Margaret Dufreney located?

Margaret Dufreney practices at 479 County Road 520 Ste A202, Marlboro, NJ 07746. The listed phone number is (732) 837-1130.

What is Margaret Dufreney's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Obstetrics, with taxonomy code 207VX0000X.

Is Margaret Dufreney enrolled in Medicare?

Yes. Margaret Dufreney 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.

Is Margaret Dufreney affiliated with any hospitals?

According to CMS data, Margaret Dufreney is affiliated with Centrastate Medical Center.

When was this NPI record last updated?

The NPPES record for Margaret Dufreney was last updated on May 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.