Cynthia Guilkey, FNP-C
NPI 1376269241 · Family Nurse Practitioner · Perris, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Guilkey, FNP-C is a Family Nurse Practitioner provider in Perris, CA (NPI 1376269241).
Provider details
- NPI number
- 1376269241
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- F07221755 (CA)
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 tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
102 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 76 | $102 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 15 | $147 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 11 | $60 |
Typical Medicare-allowed amounts for these services range $60–$147 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 44 | 44 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 29 | 29 |
| Azithromycin | 24 | 24 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 24 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 21 | 21 |
| Ibuprofen | 16 | 16 |
| Prednisone | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-10-12
- Last updated
- 2022-10-12
- Certified
- 2022-10-12
Frequently asked questions
- What is Cynthia Guilkey's NPI number?
- Cynthia Guilkey's National Provider Identifier (NPI) is 1376269241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Guilkey's specialty?
- Cynthia Guilkey is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cynthia Guilkey located?
- Cynthia Guilkey's practice location on file with NPPES is 3443 Bryce Canyon Way, Perris, CA 92570-5563.
- What is Cynthia Guilkey's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Guilkey is (951) 692-0625.
- Does Cynthia Guilkey accept Medicare?
- Cynthia Guilkey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Guilkey's NPI active?
- Yes — Cynthia Guilkey's NPI (1376269241) is active in the NPPES registry as of the last update on 2022-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.