Mark Norbert Preciado Guiab, FPA, PMHNP-BC, FNP-C
NPI 1346770914ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Crete, IL
Nurse Practitioner, Psych/Mental Health (FPA, PMHNP-BC, FNP-C) with Serene Psychiatry PLLC, practicing in Crete, Illinois. 753 Medicare patients in 2024, $4,833,222 paid; nearly all of their 8,373 Part D prescriptions were generic (93%). Otsuka America Pharmaceutical, Inc. was the largest of 8 companies reporting payments in 2025, $18,891 in all, mostly speaking and faculty fees.
Overview
| NPI | 1346770914 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FPA, PMHNP-BC, FNP-C |
| Sole proprietor | No |
| NPI issued | Jun 15, 2017 |
| Last updated in NPPES | Feb 3, 2025 |
| Certified by provider | Feb 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 277001928 | IL |
| Nurse Practitioner | 363L00000X | 209016243 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 753 |
|---|---|
| Services billed | 8,190 across 34 procedure codes |
| Paid by Medicare | $4,833,222 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,373 · 8,460 30-day fills |
|---|---|
| Patients | 458 |
| Total drug cost | $690,140 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Serene Psychiatry PLLCHoffman Estates, IL · 2 clinicians
Industry payments (Open Payments)
- 2025$18,891 · 69 payments from 8 companies
- 2024$531.03 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $17,988 | 52 |
| Alpha Cognition USA, Inc. | $343.06 | 8 |
| Teva Pharmaceuticals USA, Inc. | $248.78 | 2 |
| Acadia Pharmaceuticals Inc | $136.89 | 3 |
| Neurocrine Biosciences, Inc. | $109.34 | 1 |
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$14,712 · 14 payments
- Food and Beverage$2,393 · 35 payments
- Travel and Lodging$1,786 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other psychiatric nurse practitioners in Crete
- 1609670389