NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leo M Rozmaryn, M.D.

Orthopaedic Hand Surgery Physician in Rockville, MD · enumerated 2006 · practices at The Centers for Advanced Orthopedcs.

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

National Provider Identifier

1093896227

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Leo M Rozmaryn
Credential M.D.
Sex Male
Practice address 14995 Shady Grove Rd Ste 350, Rockville, MD, 20850
Phone (301) 251-1433
Fax (301) 424-5266
Enumeration date Oct 17, 2006
Last updated in NPPES Jan 25, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 207XS0106X (MD) Secondary
207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License D0036613 (MD) 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
40090201 Other - CAREFIRST BLUE CROSS
291840 Other - ALLIANCE/MAMSI
291840 Other - MDIPA/OPCHOICE
0321139014 Other - CIGNA
460135 Other - AETNA
91961 Other - ANTHEM
37520006 Other - BLUE CROSS OF NATL CAP AR

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Leo Rozmaryn?
Leo Rozmaryn is registered in NPPES with the primary taxonomy of Orthopaedic Hand Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-25.