NPI Portal NPI Lookup & Verification

Dr. Mark Lewis Siskind, DC

Dr. Mark Lewis Siskind is a Chiropractor provider (Chiropractor) practicing in Baltimore, MD, registered in the NPPES registry with NPI 1477627610 since 2006. The credential DC stands for Doctor of Chiropractic.

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NPI 1477627610
Entity type Individual (Type 1)
Name Dr. Mark Lewis Siskind
Credential DC
Sex Male
Practice address 3808 EASTERN AVE, Baltimore, MD, 21224
Phone 4437083201
Fax 4437083343
Enumeration date 2006-11-20
Last updated in NPPES 2011-03-23

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary S01319 MD

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details
Provider: Mark Siskind, DC
NPI: 1477627610
Taxonomy: 111N00000X (Chiropractor)
Address: 3808 EASTERN AVE, Baltimore, MD, 21224

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1558689323 Darryl Braxton Individual Mental Health Counselor Baltimore, MD
1982998076 Douglas Weaver Individual Chiropractor Baltimore, MD
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1891278024 Issaiah House Inc Organization Professional Counselor Baltimore, MD
1437846623 Issaiah House Inc Organization Community/Behavioral Health Agency Baltimore, MD
1588521140 Henry Recovery House and Mental Health Therapy LLC Organization Addiction (Substance Use Disorder) Counselor Baltimore, MD

Verify this record

Cross-check NPI 1477627610 against the authoritative CMS record: view Dr. Mark Lewis Siskind 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

How do I verify Mark Siskind's NPI record?
Cross-check NPI 1477627610 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1477627610 active?
Yes — as of the latest NPPES snapshot, NPI 1477627610 is active (record last updated 2011-03-23).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-03-23.