NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martha E Grandits, MD

Rheumatology Physician in Saint Paul, MN · enumerated 2006 · practices at Metropolitan Sleep Disorders Center, LLP.

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

National Provider Identifier

1548222425

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Martha E Grandits
Credential MD
Sex Female
Practice address 255 Smith Ave N, Suite 100, Saint Paul, MN, 55102
Fax (651) 241-7678
Enumeration date Apr 5, 2006
Last updated in NPPES Oct 19, 2011

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 40705 (MN) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Martha Grandits?
Martha Grandits is registered in NPPES with the primary taxonomy of Rheumatology 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 2011-10-19.