NPI Portal NPI Lookup & Verification

Mark W Clark X, MD

Mark W Clark X is a Cardiovascular Disease Physician provider (Internal Medicine) practicing in Hampton, VA, registered in the NPPES registry with NPI 1336107762 since 2006. The credential MD stands for Doctor of Medicine. Practices at Hampton Mental Health Associates, Inc (listed at the same practice address in NPPES).

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NPI 1336107762
Entity type Individual (Type 1)
Name Mark W Clark X
Credential MD
Sex Male
Practice address 2112 HARTFORD RD, SUITE B, Hampton, VA, 23666
Phone 7578277754
Fax 7578383692
Enumeration date 2006-05-03
Last updated in NPPES 2011-05-05

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207RC0000X Cardiovascular Disease Physician Primary 0101028804 VA

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
1336107762 Medicaid VA
Copy-ready billing details
Provider: Mark Clark, MD
NPI: 1336107762
Taxonomy: 207RC0000X (Cardiovascular Disease Physician)
Address: 2112 HARTFORD RD, SUITE B, Hampton, VA, 23666

Other providers at this practice address

NPI Name Type Specialty Location
1487638664 Darlene Hinojosa Individual Family Nurse Practitioner Hampton, VA
1780642124 Patricia Nahormek Individual Cardiovascular Disease Physician Hampton, VA
1366548042 Michel Gingras Individual Child & Adolescent Psychiatry Physician Hampton, VA
1659462588 Helene Gingras Individual Psychiatric/Mental Health Nurse Practitioner Hampton, VA
1356432801 Hampton Mental Health Associates, Inc Organization Mental Health Counselor Hampton, VA
1235538208 Laurie Stephens Individual Psychiatric/Mental Health Nurse Practitioner Hampton, VA
1154966265 Resmi Thomas Individual Psychiatric/Mental Health Nurse Practitioner Hampton, VA
1851936751 Sharon Bielecki Individual Professional Counselor Hampton, VA

Verify this record

Cross-check NPI 1336107762 against the authoritative CMS record: view Mark W Clark X on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Mark Clark?
The National Provider Identifier (NPI) for Mark Clark is 1336107762, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Clark practice?
The practice location on file with NPPES is in Hampton, VA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-05-05.