Jeffrey Keokolo Tamsing, M.D.
NPI 1457518680ActiveIndividual· Psychiatry & Neurology, Neurology· Parker, CO
Psychiatry & Neurology, Neurology (M.D.) with Neurology of the Rockies LLC, practicing in Parker, Colorado. Their prescriptions cost Medicare Part D more than their services did: $1,777,935 for 1,194 claims, against $297,943 paid for services in 2024. Alexion Pharmaceuticals, Inc. was the largest of 40 companies reporting payments in 2025, $18,352 in all, mostly speaking and faculty fees. Lists Adventhealth Littleton and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457518680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 16, 2008 |
| Last updated in NPPES | Apr 22, 2021 |
| Certified by provider | Apr 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 45856 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 474 |
|---|---|
| Services billed | 37,676 across 40 procedure codes |
| Paid by Medicare | $297,943 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,194 · 2,184 30-day fills |
|---|---|
| Patients | 192 |
| Total drug cost | $1,777,935 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Neurology of the Rockies LLCParker, CO · 12 clinicians
Hospital affiliations
- Adventhealth LittletonLittleton, CO
- Adventhealth ParkerParker, CO
- Centura Health-St Anthony HospitalLakewood, CO
- Centura Health-St Anthony North Health CampusWestminster, CO
- Sky Ridge Medical CenterLone Tree, CO
Industry payments (Open Payments)
- 2025$18,352 · 260 payments from 40 companies
- 2024$28,934 · 236 payments from 35 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $10,874 | 36 |
| Argenx US, Inc. | $3,381 | 9 |
| Abbvie Inc. | $783.42 | 54 |
| Pfizer Inc. | $500.33 | 35 |
| Teva Pharmaceuticals USA, Inc. | $294.38 | 12 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$12,100 · 5 payments
- Food and Beverage$5,054 · 243 payments
- Travel and Lodging$923.38 · 10 payments
- Consulting Fee$175.00 · 1 payment
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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