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MARISSA POTENZA
NPI 1760844880
Emergency Medicine in Washington, DC

Active since March 28, 2016PECOS EnrolledAccepts Medicare Assignment
900 23RD ST NW, WASHINGTON, DC 20037(202) 741-2911(202) 741-2921 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 12, 2026, Sep 11, 2025, Dec 15, 2022 and 3 more (6 updates tracked since 2016).

About Marissa Potenza NPPES

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

MARISSA POTENZA (NPI 1760844880) is an individual emergency medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD210003006) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Bethesda, and is a graduate of Albany Medical College Of Union University (2016).

NPPES Registry Identity

NPI1760844880
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameMARISSA POTENZA
Location Address900 23RD ST NWWashington, DC 20037-2342
Mailing Address900 23rd St NwWashington, DC 20037-2342
Phone(202) 741-2911
Fax(202) 741-2921
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 2016
Enumeration DateMarch 28, 2016
Last NPPES UpdateMarch 12, 20266 updates tracked since enumeration
NPPES CertifiedMarch 12, 2026
✔ NPI 1760844880 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in DC · MD210003006✔ Licensed in NY · 293790
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
900 23RD ST NW, Washington, DC 20037
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Secondary Practice Location 1

Location 18901 Wisconsin AveBethesda, MD 20889-0001 · Phone (301) 295-4810

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

Marissa Potenza 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 ID4486990066
PECOS Enrollment IDI20230121000004
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 4

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 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.
74 services72 patients
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.
57 services56 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
32 services28 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20037 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
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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 20

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

DR. MUSTAFA BASSAM HAMMUDI MD
Internal Medicine
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 715-5109
DR. WILLIAM ANDREW HIATT MD
Student in an Organized Health Care Education/Training Program
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3000
DR. SHANE ZAMANI MD
Anesthesiology
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 715-4750
MRS. KATHERINE CAROLINE FOX PA-C, MPH
Physician Assistant (Surgical)
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 715-5000
MICHAEL WILLIAM HELBIG MD
Student in an Organized Health Care Education/Training Program
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3100
DR. AYAL ZEV PIERCE MD
Emergency Medicine
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 715-4000
CALLIE BEEGLE PA-C
Physician Assistant
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 715-4000
MEGAN KATHLEEN DAILEY PA-C
Physician Assistant
900 23RD ST NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2210

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 Potenza's NPI number?

The NPI number for Marissa Potenza is 1760844880. It was assigned to this individual provider in the NPPES registry on March 28, 2016.

Where is Marissa Potenza located?

Marissa Potenza practices at 900 23rd St NW, Washington, DC 20037. The listed phone number is (202) 741-2911.

What is Marissa Potenza's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Marissa Potenza enrolled in Medicare?

Yes. Marissa Potenza 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.

When was this NPI record last updated?

The NPPES record for Marissa Potenza was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.