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CAITLIN REID MERCER C-PA
NPI 1457705790
Physician Assistant in Woodbridge, VA

Active since April 22, 2016PECOS Enrolled
2300 OPITZ BLVD, WOODBRIDGE, VA 22191(703) 523-1486 Get Directions Write a Review

NPPES record last updated: April 22, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Caitlin Reid Mercer C-pa NPPES

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

CAITLIN REID MERCER C-PA (NPI 1457705790) is an individual physician assistant in Woodbridge, Virginia, licensed in Virginia (0110005285) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457705790
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameCAITLIN REID MERCERCredential: C-PA
Location Address2300 OPITZ BLVDWoodbridge, VA 22191-3311
Mailing Address100 Witmer Rd, Suite 220Horsham, PA 19044-2291
Phone(703) 523-1486
Sole ProprietorYes
Enumeration DateApril 22, 2016
✔ NPI 1457705790 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in VA · 0110005285✔ Licensed in MD · C0006103
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2300 OPITZ BLVD, Woodbridge, VA 22191
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Caitlin Reid Mercer C-pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 2

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
50 services50 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22191 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
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
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 20

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

DR. TRAVIS HOWELL EDELSTEIN D.O.
Radiology (Vascular & Interventional Radiology)
2300 OPITZ BLVD
WOODBRIDGE, VA 22191
Prince William County (703) 523-0611
POTOMAC HOSPITAL CORPORATION OF PRINCE WILLIAM
Pharmacy (Community/Retail Pharmacy)
2300 OPITZ BLVD
WOODBRIDGE, VA 22191
Prince William County (703) 523-1000
NORTHERN VIRGINIA ANESTHESIA ASSOC.
Anesthesiology
2300 OPITZ BLVD
WOODBRIDGE, VA 22191
Prince William County (703) 670-1357
BRENDAN L WATERS DO
Radiology (Diagnostic Radiology)
2300 OPITZ BLVD, DEPT OF RADIOLOGY
WOODBRIDGE, VA 22191
Prince William County (703) 607-1561
CASSANDRA J VAZQUEZ PA-C
Physician Assistant
2300 OPITZ BLVD
WOODBRIDGE, VA 22191
Prince William County (703) 523-1000
ANTONIO BACA M.D.
Emergency Medicine
2300 OPITZ BLVD
WOODBRIDGE, VA 22191
Prince William County (216) 288-1596
HELEN ALMARAZ
Specialist/Technologist, Other (Surgical Assistant)
2300 OPITZ BLVD
WOODBRIDGE, VA 22191
Prince William County (703) 523-2343
SENTARA MEDICAL GROUP
Hospitalist
2300 OPITZ BLVD, STE G-209
WOODBRIDGE, VA 22191
Prince William County (703) 523-0611

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 Caitlin Mercer's NPI number?

The NPI number for Caitlin Mercer is 1457705790. It was assigned to this individual provider in the NPPES registry on April 22, 2016.

Where is Caitlin Mercer located?

Caitlin Mercer practices at 2300 Opitz Blvd, Woodbridge, VA 22191. The listed phone number is (703) 523-1486.

What is Caitlin Mercer's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Caitlin Mercer enrolled in Medicare?

Yes. Caitlin Mercer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Caitlin Mercer was last updated on April 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.