NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lois Jean Jacobs, M.D.,PHD

Internal Medicine Physician in Oshkosh, WI · enumerated 2005 · practices at Lois J Jacobs MD Phd S C.

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

National Provider Identifier

1306843321

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Lois Jean Jacobs
Credential M.D.,PHD
Sex Female
Practice address 1510 Arboretum Dr, Oshkosh, WI, 54901
Phone (920) 231-5313
Fax (920) 231-5348
Enumeration date Jul 5, 2005
Last updated in NPPES Jun 30, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 30302 (WI) 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
202960478012 Other WI BCBSWI
31609600 Medicaid WI -

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

Where does Lois Jacobs practice?
The practice location on file with NPPES is in Oshkosh, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lois Jacobs?
The National Provider Identifier (NPI) for Lois Jacobs is 1306843321, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-30.