Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mark D. Soucy, PHD, RN, CNS-BC P/MH

Psychiatric/Mental Health Clinical Nurse Specialist in San Antonio, TX · enumerated 2006.

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

National Provider Identifier

1861503856

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark D. Soucy

Credential PHD, RN, CNS-BC P/MH

Sex Male

Practice address San Antonio, TX, 78229

Phone (210) 567-5893

Fax (210) 567-5822

Enumeration date Aug 31, 2006

Last updated in NPPES Dec 18, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 022528-23-08 (NH) Secondary

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 599005 (TX) Primary

364SP0807X Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 599005 (TX) Secondary

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 599005 (TX) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
890000755	Other	TX	MEDICARE RAILROAD PROVIDE
NP7250	Other	TX	BCBSTX PAR (SOLO)
SO085N754	Other	TX	BLUE SHIELD ID
8N3781	Other	TX	BCBS EXISTING PROVIDER #
SO085N754	Other	TX	BC/BS PROVIDER

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.

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Frequently asked questions

How do I verify Mark Soucy's NPI record?

Cross-check NPI 1861503856 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861503856 active?

Yes, as of the latest NPPES snapshot, NPI 1861503856 is active (record last updated 2009-12-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-18.