Frenalyn Domingo, NP
NPI 1588685226 · Nurse Practitioner · Grand Terrace, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frenalyn Domingo, NP is a Nurse Practitioner provider in Grand Terrace, CA (NPI 1588685226).
Provider details
- NPI number
- 1588685226
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- NP 13242 (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 tenure25% of score
19 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
125 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 125 | $109 |
Typical Medicare-allowed amounts for these services range $109–$109 (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 · 41 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Simvastatin | 62 |
| Levothyroxine Sodium | 52 |
| Amlodipine Besylate | 44 |
| Trazodone Hcl | 38 |
| Metformin Hcl | 29 |
| Losartan Potassium | 27 |
| Levetiracetam | 27 |
| Atorvastatin Calcium | 26 |
| Omeprazole | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,258 across 11 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
- 2006-07-21
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is Frenalyn Domingo's NPI number?
- Frenalyn Domingo's National Provider Identifier (NPI) is 1588685226, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frenalyn Domingo's specialty?
- Frenalyn Domingo is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Frenalyn Domingo located?
- Frenalyn Domingo's practice location on file with NPPES is 22040 Van Buren St, Grand Terrace, CA 92313.
- What is Frenalyn Domingo's phone number?
- The practice phone number listed in the NPPES registry for Frenalyn Domingo is (909) 677-7850.
- Does Frenalyn Domingo accept Medicare?
- Frenalyn Domingo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frenalyn Domingo's NPI active?
- Yes — Frenalyn Domingo's NPI (1588685226) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.