Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Deimante Maria Tamkus, M.D.

Medical Oncology Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1881624906

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Registry record

Entity type Individual (Type 1)

Name Dr. Deimante Maria Tamkus

Credential M.D.

Sex Female

Practice address 1950 W Polk St, Chicago, IL, 60612

Phone (312) 864-6000

Enumeration date Jul 4, 2006

Last updated in NPPES Apr 30, 2021

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036-106485 (IL) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036-106485 (IL) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 036-106485 (IL) 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
1881624906	Medicaid	MI	-
4886651	Medicaid	MI	-

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 is the NPI number for Deimante Tamkus?

The National Provider Identifier (NPI) for Deimante Tamkus is 1881624906, a Type 1 (individual) record in the CMS NPPES registry.

Where does Deimante Tamkus practice?

The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-30.