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MICHAEL S KIRWIN MD
NPI 1548286164
Obstetrics & Gynecology in Freehold, NJ

Active since July 15, 2006PECOS EnrolledAccepts Medicare Assignment
501 IRONBRIDGE RD, STE 10, FREEHOLD, NJ 07728(732) 431-2999(732) 431-2993 Get Directions Write a Review

NPPES record last updated: August 7, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 7, 2025, Jul 12, 2021 (2 updates tracked since 2021).

About Michael S Kirwin Md NPPES

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

MICHAEL S KIRWIN MD (NPI 1548286164) is an individual obstetrics & gynecology provider in Freehold, New Jersey, licensed in New Jersey (62235) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of State University Of New York Downstate Medical Center (1991).

NPPES Registry Identity

NPI1548286164
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameMICHAEL S KIRWINCredential: MD
Location Address501 IRONBRIDGE RD, STE 10Freehold, NJ 07728
Mailing AddressPo Box 22581New York, NY 10087-2581 · (856) 669-6050 · Fax (856) 651-0794
Phone(732) 431-2999
Fax(732) 431-2993
Sole ProprietorNo
Medical School CMSState University Of New York Downstate Medical CenterGraduated 1991
Enumeration DateJuly 15, 2006
Last NPPES UpdateAugust 7, 20252 updates tracked since enumeration
NPPES CertifiedAugust 7, 2025
✔ NPI 1548286164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in NJ · 62235✔ Licensed in WI · 4865-320✔ Licensed in WA · MD70021880
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
501 IRONBRIDGE RD, Freehold, NJ 07728
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Secondary Practice Locations 2

Location 13400 E Racine StJanesville, WI 53546-2344 · Phone (608) 373-8000 · Fax (608) 371-8928
Location 2433 E 8th StPort Angeles, WA 98362-6219 · Phone (360) 565-0999 · Fax (360) 565-0591

Other Identifiers 2

Medicaid7141904NJ
Medicaid1548286164WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Providence Health Plan.Insurance ›

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

Michael S Kirwin 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 ID8820127020
PECOS Enrollment IDI20250730004696
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 3

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
42 services35 patients
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.
38 services38 patients
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory Q0091
A Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
29 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07728 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.

Other Providers at the Same Location NPPES 6

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

ROBERT ANDREW PORTADIN M.D.
Obstetrics & Gynecology
501 IRONBRIDGE RD, SUITE 10
FREEHOLD, NJ 07728
Monmouth County (732) 431-2999
MICHAEL L DIMINO MD
Obstetrics & Gynecology
501 IRONBRIDGE RD, STE 10
FREEHOLD, NJ 07728
Monmouth County (732) 431-2999
STEFANIE SPADAFINO PAC
Physician Assistant
501 IRONBRIDGE RD, SU 10
FREEHOLD, NJ 07728
Monmouth County (732) 431-2999
WOMEN'S PHYSICIANS & SURGEONS, PA
Obstetrics & Gynecology
501 IRONBRIDGE RD, SUITE 10
FREEHOLD, NJ 07728
Monmouth County (732) 431-2999
PETER COREY MANDEL MD
Obstetrics & Gynecology
501 IRONBRIDGE RD, SUITE 10
FREEHOLD, NJ 07728
Monmouth County (732) 431-2999
SAFRIR NEUWIRTH MD
Obstetrics & Gynecology
501 IRONBRIDGE RD, SUITE 10
FREEHOLD, NJ 07728
Monmouth County (732) 431-2999

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 Michael Kirwin's NPI number?

The NPI number for Michael Kirwin is 1548286164. It was assigned to this individual provider in the NPPES registry on July 15, 2006.

Where is Michael Kirwin located?

Michael Kirwin practices at 501 Ironbridge Rd Ste 10, Freehold, NJ 07728. The listed phone number is (732) 431-2999.

What is Michael Kirwin's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Michael Kirwin enrolled in Medicare?

Yes. Michael Kirwin 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.

What insurance does Michael Kirwin accept?

Health plans from Anthem Blue Cross and Blue Shield and Providence Health Plan list Michael Kirwin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Kirwin was last updated on August 7, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.