Mark Norbert Guiab, FPA, PMHNP-BC, FNP-C
NPI 1346770914 · Psychiatric/Mental Health Nurse Practitioner · Crete, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Norbert Guiab, FPA, PMHNP-BC, FNP-C is a Psychiatric/Mental Health Nurse Practitioner provider in Crete, IL (NPI 1346770914).
Provider details
- NPI number
- 1346770914
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FPA, PMHNP-BC, FNP-C
- Sex
- Male
- Sole proprietor
- No
- License
- 277001928 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,474 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,505 | $94 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 909 | $65 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 561 | $78 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 387 | $112 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 305 | $66 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 647 | 54 |
| Clonazepam | 527 | 42 |
| Divalproex Sodium | 525 | 51 |
| Duloxetine Hcl | 415 | 34 |
| Trazodone Hcl | 395 | 51 |
| Risperidone | 388 | 29 |
| Sertraline Hcl | 363 | 39 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$531 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-15
- Last updated
- 2025-02-03
- Certified
- 2025-02-03
Frequently asked questions
- What is Mark Norbert Guiab's NPI number?
- Mark Norbert Guiab's National Provider Identifier (NPI) is 1346770914, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Norbert Guiab's specialty?
- Mark Norbert Guiab is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Norbert Guiab located?
- Mark Norbert Guiab's practice location on file with NPPES is 1328 Main St Unit B, Crete, IL 60417-2131.
- What is Mark Norbert Guiab's phone number?
- The practice phone number listed in the NPPES registry for Mark Norbert Guiab is (708) 277-6924.
- Does Mark Norbert Guiab accept Medicare?
- Mark Norbert Guiab is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Norbert Guiab's NPI active?
- Yes — Mark Norbert Guiab's NPI (1346770914) is active in the NPPES registry as of the last update on 2025-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.