Karla Guiab
NPI 1336792738 · Nurse Practitioner · Skokie, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karla Guiab is a Nurse Practitioner provider in Skokie, IL (NPI 1336792738).
Provider details
- NPI number
- 1336792738
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 209019477 (IL)
Specialties & taxonomies
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
6 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
1,773 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 | 1,419 | $92 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 211 | $165 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 76 | $110 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 67 | $64 |
Typical Medicare-allowed amounts for these services range $64–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Divalproex Sodium | 262 | 40 |
| Memantine Hcl | 251 | 37 |
| Quetiapine Fumarate | 210 | 36 |
| Sertraline Hcl | 197 | 46 |
| Escitalopram Oxalate | 122 | 31 |
| Duloxetine Hcl | 118 | 19 |
| Risperidone | 112 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$249 across 2 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
- 2019-07-24
- Last updated
- 2019-07-24
Frequently asked questions
- What is Karla Guiab's NPI number?
- Karla Guiab's National Provider Identifier (NPI) is 1336792738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karla Guiab's specialty?
- Karla Guiab is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karla Guiab located?
- Karla Guiab's practice location on file with NPPES is 8042 Kenton Ave Apt 2, Skokie, IL 60076-3180.
- What is Karla Guiab's phone number?
- The practice phone number listed in the NPPES registry for Karla Guiab is (847) 431-1019.
- Does Karla Guiab accept Medicare?
- Karla Guiab is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karla Guiab's NPI active?
- Yes — Karla Guiab's NPI (1336792738) is active in the NPPES registry as of the last update on 2019-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.