Rosemary Lopez, N.P.
NPI 1578820197 · Acute Care Nurse Practitioner · Valencia, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosemary Lopez, N.P. is a Acute Care Nurse Practitioner provider in Valencia, CA (NPI 1578820197).
Provider details
- NPI number
- 1578820197
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 20981 (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
14 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
96 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $111 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 16 | $84 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 15 | $9 |
Typical Medicare-allowed amounts for these services range $9–$111 (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 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 82 | 79 |
| Atorvastatin Calcium | 56 | 29 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 53 | 38 |
| Metformin Hcl | 41 | 19 |
| Fluticasone Propionate | 38 | 36 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 33 | 33 |
| Ciprofloxacin Hcl | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-20
- Last updated
- 2017-01-24
Frequently asked questions
- What is Rosemary Lopez's NPI number?
- Rosemary Lopez's National Provider Identifier (NPI) is 1578820197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosemary Lopez's specialty?
- Rosemary Lopez is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rosemary Lopez located?
- Rosemary Lopez's practice location on file with NPPES is 26357 Mcbean Pkwy, Valencia, CA 91355-4488.
- What is Rosemary Lopez's phone number?
- The practice phone number listed in the NPPES registry for Rosemary Lopez is (661) 222-2658.
- Does Rosemary Lopez accept Medicare?
- Rosemary Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosemary Lopez's NPI active?
- Yes — Rosemary Lopez's NPI (1578820197) is active in the NPPES registry as of the last update on 2017-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.