Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Terrance Metzdorff, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Elmira, NY · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1992797237

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Registry record

Entity type Individual (Type 1)

Name Mark Terrance Metzdorff

Credential MD

Sex Male

Practice address 600 Ivy St, Elmira, NY, 14905

Phone (607) 737-7780

Fax (607) 737-7788

Enumeration date Aug 22, 2005

Last updated in NPPES Nov 15, 2013

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License MD13216 (OR) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License MD00029270 (WA) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 271766 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
210476	Medicaid	OR	-
8303331	Medicaid	WA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mark Metzdorff practice?

The practice location on file with NPPES is in Elmira, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mark Metzdorff?

The National Provider Identifier (NPI) for Mark Metzdorff is 1992797237, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Michael Landolf Occupational Medicine Physician · Elmira, NY NPI 1578538005 Chemung Medical Services PC Internal Medicine Physician · Elmira, NY NPI 1356378889 Ivy Obstetrics & Gynecology Assoc PC Obstetrics & Gynecology Physician · Elmira, NY NPI 1396763124 Gary Mann Surgery Physician · Elmira, NY NPI 1760567572 Janet Sherman Obstetrics & Gynecology Nurse Practitioner · Elmira, NY NPI 1043384589 Esperanza Ducot Advanced Practice Midwife · Elmira, NY NPI 1447324983 Edward Nast Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Elmira, NY NPI 1750456158 Raj Gulati Surgery Physician · Elmira, NY NPI 1447325790

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-15.