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CHRISTOPHER A MAROUN MD
NPI 1619505815
Otolaryngology in Baltimore, MD

Active since April 01, 2020PECOS Enrolled
1800 ORLEANS ST, BALTIMORE, MD 21287(978) 770-8417 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 4, 2026, Apr 1, 2020 (2 updates tracked since 2020).

About Christopher A Maroun Md NPPES

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

CHRISTOPHER A MAROUN MD (NPI 1619505815) is an individual otolaryngology provider in Baltimore, Maryland, licensed in Maryland (D95605) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Bethesda, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1619505815
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameCHRISTOPHER A MAROUNCredential: MD
Location Address1800 ORLEANS STBaltimore, MD 21287-0010
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 933-0000 · Fax (410) 500-4266
Phone(978) 770-8417
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 1, 2020
Last NPPES UpdateMay 4, 20262 updates tracked since enumeration
NPPES CertifiedMay 4, 2026
✔ NPI 1619505815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in MD · D95605
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
1800 ORLEANS ST, Baltimore, MD 21287
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Secondary Practice Location 1

Location 18600 Old Georgetown RdBethesda, MD 20814-1422 · Phone (301) 896-3100

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Christopher A Maroun Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5698199131
PECOS Enrollment IDI20260514001637
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
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.

KATHRYN ROSENBLATT M.D.
Anesthesiology
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-7461
DR. CARMEL BOGLE M.D.
Pediatrics
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (443) 287-0526
MIAN MOHAMMAD BILAL KHALID MD
Internal Medicine (Gastroenterology)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
SPENCER WILSON
Surgery (Trauma Surgery)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 933-6423
EVAN FOX
Radiology (Neuroradiology)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
ADAM ROBERT BUSSELLS
Physician Assistant
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
DR. SARAH WALSER MD
Student in an Organized Health Care Education/Training Program
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (484) 883-6433
LYNN DESROSIERS FNP-C
Nurse Practitioner (Family)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-2800

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 Christopher Maroun's NPI number?

The NPI number for Christopher Maroun is 1619505815. It was assigned to this individual provider in the NPPES registry on April 1, 2020.

Where is Christopher Maroun located?

Christopher Maroun practices at 1800 Orleans St, Baltimore, MD 21287. The listed phone number is (978) 770-8417.

What is Christopher Maroun's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Christopher Maroun enrolled in Medicare?

Yes. Christopher Maroun is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Christopher Maroun was last updated on May 4, 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.