DR. MARK HOWARD TERRIS MD
NPI 1073673505
Otolaryngology in Largo, MD

Active since December 12, 2006PECOS EnrolledAccepts Medicare Assignment
1221 MERCANTILE LANE, LARGO, MD 20774(301) 618-5500 Get Directions Write a Review

NPPES record last updated: January 19, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 19, 2022, Jun 21, 2021, Jun 7, 2021 (3 updates tracked since 2021).

About Dr. Mark Howard Terris Md NPPES

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

DR. MARK HOWARD TERRIS MD (NPI 1073673505) is an individual otolaryngology provider in Largo, Maryland, licensed in Maryland (D0047366) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1989).

NPPES Registry Identity

NPI1073673505
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. MARK HOWARD TERRISCredential: MD
Location Address1221 MERCANTILE LANELargo, MD 20774-5374
Mailing Address2101 E Jefferson St, Kaiser Permanente Medicare EnrollmentRockville, MD 20852-4908 · (301) 816-2424
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1989
Enumeration DateDecember 12, 2006
Last NPPES UpdateJanuary 19, 20223 updates tracked since enumeration
NPPES CertifiedJanuary 19, 2022
NPI 1073673505 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
Licenses Licensed in MD · D0047366 Licensed in VA · 0101052267 Licensed in DC · MD21307
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.
1221 MERCANTILE LANE, Largo, MD 20774

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

Dr. Mark Howard Terris 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 ID9739215013
PECOS Enrollment IDI20100325000542
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 20774 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
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.

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.

Optometrist
1221 MERCANTILE LANE
LARGO, MD 20774
Family Medicine (Adult Medicine)
1221 MERCANTILE LANE
LARGO, MD 20774
Internal Medicine
1221 MERCANTILE LANE
LARGO, MD 20774
Obstetrics & Gynecology
1221 MERCANTILE LANE
LARGO, MD 20774
Nurse Practitioner
1221 MERCANTILE LANE
LARGO, MD 20774
Audiologist
1221 MERCANTILE LANE
LANDOVER, MD 20774
Internal Medicine (Gastroenterology)
1221 MERCANTILE LANE
UPPER MARLBORO, MD 20774
Internal Medicine
1221 MERCANTILE LANE
LARGO, MD 20774

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 Mark Terris's NPI number?

The NPI number for Mark Terris is 1073673505. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Where is Mark Terris located?

Mark Terris practices at 1221 Mercantile Lane, Largo, MD 20774. The listed phone number is (301) 618-5500.

What is Mark Terris's specialty?

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

Is Mark Terris enrolled in Medicare?

Yes. Mark Terris 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 Mark Terris was last updated on January 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.