Rosan Derayunan, FNP-BC
NPI 1740942481 · Family Nurse Practitioner · Simi Valley, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosan Derayunan, FNP-BC is a Family Nurse Practitioner provider in Simi Valley, CA (NPI 1740942481).
Provider details
- NPI number
- 1740942481
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 95018575 (CA)
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 tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,430 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 1,175 | $112 |
| Physician Or Allowed Practitioner Supervision of a Patient Receiving Medicare-Covered Services Provided By a Participating Home Health Agency (patient Not Present) Requiring Complex and Multidisciplinary Care Modalities Involving Regular Physician Or AllowG0181 | 873 | $94 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 320 | $162 |
| Physician Or Allowed Practitioner Re-Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians aG0179 | 274 | $39 |
| Residence Visit for New Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 75 Minutes99345 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 181 | 42 |
| Amlodipine Besylate | 97 | 21 |
| Pantoprazole Sodium | 77 | 19 |
| Gabapentin | 76 | 19 |
| Losartan Potassium | 74 | 16 |
| Tamsulosin Hcl | 49 | — |
| Furosemide | 45 |
Practice location
Mailing address
Additional practice locations (1)
- 2788 Fyler PlLos Angeles, CA 90065-5106Phone: (323) 317-1769
Registry dates
- Enumerated
- 2021-10-11
- Last updated
- 2023-03-04
- Certified
- 2023-03-04
Frequently asked questions
- What is Rosan Derayunan's NPI number?
- Rosan Derayunan's National Provider Identifier (NPI) is 1740942481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosan Derayunan's specialty?
- Rosan Derayunan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rosan Derayunan located?
- Rosan Derayunan's practice location on file with NPPES is 1720 E Los Angeles Ave Ste 231, Simi Valley, CA 93065-5813.
- What is Rosan Derayunan's phone number?
- The practice phone number listed in the NPPES registry for Rosan Derayunan is (805) 980-7574.
- Does Rosan Derayunan accept Medicare?
- Rosan Derayunan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosan Derayunan's NPI active?
- Yes — Rosan Derayunan's NPI (1740942481) is active in the NPPES registry as of the last update on 2023-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.