Provider Profile
Marizthel L. Guiab, DNP, FNP-C
Unclaimed ProfileAbout Dr. Guiab
Marizthel L. Guiab, DNP, FNP-C is a nurse practitioner based in Westchester, IL. Marizthel is a 2017 graduate of University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb). According to Medicare claims data, Marizthel cared for 227 Medicare patients across 476 services. The services billed most often include subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, and psychiatric diagnostic evaluation with medical services. The provider's National Provider Identifier (NPI) is 1720597990.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (877) 906-9699
- Email not available
Practice Locations
1 WESTBROOK CORPORATE CTR STE 300
Westchester, IL 60154
Procedures Most Often Billed to Medicare
476 services · 227 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
19 | Less often than most peers in Nurse Practitioner |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
343 | As often as other peers in Nurse Practitioner |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
114 | As often as other peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 27 related providers in 4 groups
Other nurse practitioners in Westchester 5
Same specialty, same city.
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 7
Providers who graduated from the same medical school in the same year.
Also performs Psychiatric diagnostic evaluation with medical services 7
Providers in IL who bill this service to Medicare most often.
Common questions
What does Marizthel L. Guiab, DNP specialize in?
Marizthel L. Guiab, DNP is a nurse practitioner in Westchester, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Marizthel L. Guiab, DNP located?
Marizthel L. Guiab, DNP is listed at 1 Westbrook Corporate Ctr Ste 300, Westchester, IL 60154. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Marizthel L. Guiab, DNP's phone number?
The number on file is (877) 906-9699. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Marizthel L. Guiab, DNP's NPI number?
Marizthel L. Guiab, DNP's National Provider Identifier is 1720597990. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Marizthel L. Guiab, DNP train?
Marizthel L. Guiab, DNP attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Marizthel L. Guiab, DNP been practicing?
Marizthel L. Guiab, DNP has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What does Marizthel L. Guiab, DNP do most often?
According to Medicare billing data, Marizthel L. Guiab, DNP provides treatments such as psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Marizthel L. Guiab, DNP confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Marizthel L. Guiab, DNP. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.