Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marcos Y Hsu, N.D., L.AC
Acupuncturist in Baltimore, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225090111
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Marcos Y Hsu
Credential N.D., L.AC
Sex Male
Practice address 2200 Kernan Dr, Baltimore, MD, 21207
Phone (410) 448-6361
Enumeration date Apr 5, 2006
Last updated in NPPES Mar 27, 2008
Taxonomy & licenses
LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture.
About the LAC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 76923103 | Other | MD | CAREFIRST BC/BS |
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.
Frequently asked questions
Where does Marcos Hsu practice?
The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marcos Hsu?
The National Provider Identifier (NPI) for Marcos Hsu is 1225090111, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Kernan Dentistry Dental Clinic/Center · Baltimore, MD NPI 1942202692 Kernan Orthopaedics and Rehabilition Multi-Specialty Clinic/Center · Baltimore, MD NPI 1639171127 Lauren Richter Family Medicine Physician · Baltimore, MD NPI 1366434227 Edwin Villamater Anesthesiology Physician · Baltimore, MD NPI 1093784803 James Dreese Sports Medicine (Orthopaedic Surgery) Physician · Baltimore, MD NPI 1184687493 Anand Murthi Orthopaedic Surgery Physician · Baltimore, MD NPI 1316900509 Michael Corcoran Physical Medicine & Rehabilitation Physician · Baltimore, MD NPI 1063478683 Peter Gorman Neurology Physician · Baltimore, MD NPI 1700842895
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-27.