Alan Gonzalez Zapata, M.D.
NPI 1134658321ActiveIndividual· Internal Medicine, Sleep Medicine· Topeka, KS
Internal Medicine, Sleep Medicine (M.D.) with Topeka Physician Group LLC, practicing in Topeka, Kansas. Their prescriptions cost Medicare Part D more than their services did: $982,620 for 6,174 claims, against $117,460 paid for services in 2024. Jazz Pharmaceuticals Inc. was the largest of 15 companies reporting payments in 2025, $1,026 in all, mostly food and beverage. Lists University of Kansas Health System - St Francis Campus as a hospital affiliation.
Overview
| NPI | 1134658321 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 9, 2017 |
| Last updated in NPPES | Mar 17, 2022 |
| Certified by provider | Mar 17, 2022 |
| Reactivated | Jan 18, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Sleep Medicine Primary | 207RS0012X | 4-44799 | KS |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Internal Medicine (KS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 522 |
|---|---|
| Services billed | 2,244 across 52 procedure codes |
| Paid by Medicare | $117,460 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,174 · 13,704 30-day fills |
|---|---|
| Patients | 473 |
| Total drug cost | $982,620 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Topeka Physician Group LLCTopeka, KS · 149 clinicians
Hospital affiliation
Other facilities
- Elara CaringHome health agency · Topeka, KS
- Midland Care Home HealthHome health agency · Topeka, KS
Industry payments (Open Payments)
- 2025$1,026 · 41 payments from 15 companies
- 2024$626.16 · 29 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Jazz Pharmaceuticals Inc. | $345.33 | 7 |
| Harmony Biosciences LLC | $192.64 | 11 |
| Axsome Therapeutics, Inc. | $86.16 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $60.84 | 2 |
| Amgen Inc. | $55.12 | 3 |
What the 2025 payments were for
- Food and Beverage$786.41 · 38 payments
- Education$239.97 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Sleep Medicine providers in Topeka
- 1104443233
- 1023695566