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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Siegfried Rotmensch, M.D.

Maternal & Fetal Medicine Physician in Mountain View, CA · enumerated 2007.

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

National Provider Identifier

1932382447

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Registry record

Entity type Individual (Type 1)
Name Dr. Siegfried Rotmensch
Credential M.D.
Sex Male
Practice address 2485 Hospital Dr Ste 231, Mountain View, CA, 94040
Phone (650) 404-8210
Fax (650) 404-8219
Enumeration date Dec 7, 2007
Last updated in NPPES Jun 7, 2013

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License A102099 (CA) Secondary
207VM0101X Maternal & Fetal Medicine Physician Allopathic & Osteopathic Physicians · License A102099 (CA) 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
A102099 Other CA MEDICAL LICENSE

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.

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Frequently asked questions

Where does Siegfried Rotmensch practice?
The practice location on file with NPPES is in Mountain View, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Siegfried Rotmensch?
The National Provider Identifier (NPI) for Siegfried Rotmensch is 1932382447, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-07.