Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Keokolo Tamsing, M.D.

Neurology Physician in Parker, CO · enumerated 2008.

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

National Provider Identifier

1457518680

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Keokolo Tamsing

Credential M.D.

Sex Male

Practice address 9235 Crown Crest Blvd, Suite 200, Parker, CO, 80138

Phone (303) 840-5051

Fax (303) 840-5058

Enumeration date May 16, 2008

Last updated in NPPES Apr 22, 2021

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 45856 (CO) 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 Jeffrey Tamsing?

Jeffrey Tamsing is registered in NPPES with the primary taxonomy of Neurology Physician. 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.

Other providers at this practice address

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Ravi Shah Neurology Physician · Parker, CO NPI 1013999895 Pediatric & Adolescent Medicine Pediatric Adolescent Medicine Physician · Parker, CO NPI 1821180506 Neurology of the Rockies, LLC Neurology Physician · Parker, CO NPI 1538280466 Kathryn Polovitz Internal Medicine Physician · Parker, CO NPI 1457557191 Sarah Smith Medical Physician Assistant · Parker, CO NPI 1861635666 Janae Haycock Pediatric Nurse Practitioner · Parker, CO NPI 1801119383 Jaime Fell Medical Physician Assistant · Parker, CO NPI 1659632040 Pediatric and Adolescent Medicine Associates PC Primary Care Clinic/Center · Parker, CO NPI 1043633647

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-22.