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

Mahalet Zewde Welde Semat, M.D

Rural Acute Care Hospital in San Francisco, CA · enumerated 2016.

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

National Provider Identifier

1205288818

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Registry record

Entity type Individual (Type 1)

Name Mahalet Zewde Welde Semat

Credential M.D

Sex Female

Practice address San Francisco, CA, 94123

Phone (787) 834-6000

Fax (787) 652-6032

Enumeration date Jul 7, 2016

Last updated in NPPES Feb 11, 2022

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

Taxonomy & licenses

282NR1301X Rural Acute Care Hospital Hospitals · License 19009 (PR) 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

What specialty is Mahalet Welde Semat?

Mahalet Welde Semat is registered in NPPES with the primary taxonomy of Rural Acute Care Hospital. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-11.