MS. MARISSA CATHERINE NIEMEYER PA-C
NPI 1376019786
Physician Assistant in Falls Church, VA

Active since October 23, 2018PECOS EnrolledAccepts Medicare Assignment
81.28/100
CMS Quality Rating
3300 GALLOWS RD, FALLS CHURCH, VA 22042(703) 280-1234(703) 970-0240 Get Directions Write a Review

NPPES record last updated: November 18, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 18, 2022, Feb 6, 2020, Oct 23, 2018 (3 updates tracked since 2018).

About Ms. Marissa Catherine Niemeyer Pa-c NPPES

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

MS. MARISSA CATHERINE NIEMEYER PA-C (NPI 1376019786) is an individual physician assistant in Falls Church, Virginia, licensed in Virginia (0110007561) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS, is affiliated with Inova Loudoun Hospital, and maintains a secondary practice location in Myrtle Beach.

NPPES Registry Identity

NPI1376019786
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMS. MARISSA CATHERINE NIEMEYERCredential: PA-C
Location Address3300 GALLOWS RDFalls Church, VA 22042-3307
Mailing AddressPo Box 37174Baltimore, MD 21297-3174 · (571) 423-5699 · Fax (571) 423-5698
Fax(703) 970-0240
Sole ProprietorNo
Medical School CMSDuke University School Of MedicineGraduated 2018
Enumeration DateOctober 23, 2018
Last NPPES UpdateNovember 18, 20223 updates tracked since enumeration
NPPES CertifiedNovember 18, 2022
NPI 1376019786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in VA · 0110007561
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.
3300 GALLOWS RD, Falls Church, VA 22042

Other Names 1

Former Name (1)Marissa Catherine Niemeyer

Secondary Practice Location 1

Location 1849 82nd PkwyMyrtle Beach, SC 29572-4614 · Phone (843) 449-2336

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

Ms. Marissa Catherine Niemeyer Pa-c 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 ID9537493986
PECOS Enrollment IDI20210119001044, I20221231000007
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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
21 services21 patients

Hospital Affiliations CMS Care Compare 2

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

Inova Loudoun Hospital

Acute Care Hospitals · Leesburg, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490043
Location44045 Riverside ParkwayLeesburg, VA 20176 · Loudoun County
Emergency services Birthing friendly

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490063
Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22042 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.28/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.77
Promoting Interoperability100
Improvement Activities40
Cost66.84

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.

Psychiatry & Neurology (Psychiatry)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Obstetrics & Gynecology
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Nurse Practitioner (Acute Care)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Physician Assistant
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Physician Assistant
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Physician Assistant
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pediatrics
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Nurse Anesthetist, Certified Registered
3300 GALLOWS RD
FALLS CHURCH, VA 22042

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 Marissa Niemeyer's NPI number?

The NPI number for Marissa Niemeyer is 1376019786. It was assigned to this individual provider in the NPPES registry on October 23, 2018. The provider is also known as Marissa Catherine Niemeyer.

Where is Marissa Niemeyer located?

Marissa Niemeyer practices at 3300 Gallows Rd, Falls Church, VA 22042. The listed phone number is (703) 280-1234.

What is Marissa Niemeyer's specialty?

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

Is Marissa Niemeyer enrolled in Medicare?

Yes. Marissa Niemeyer 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 Marissa Niemeyer affiliated with any hospitals?

According to CMS data, Marissa Niemeyer is affiliated with Inova Loudoun Hospital and Inova Fairfax Hospital.

When was this NPI record last updated?

The NPPES record for Marissa Niemeyer was last updated on November 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.