Gaynelle De Guzman
NPI 1609337625 · Family Nurse Practitioner · Highland, CA
Gaynelle De Guzman is a Family Nurse Practitioner provider in Highland, CA (NPI 1609337625).
Provider details
- NPI number
- 1609337625
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 95011460 (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
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
61 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $112 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $80 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 12 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $146 |
Typical Medicare-allowed amounts for these services range $80–$146 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 19 | 11 |
| Losartan Potassium | 19 | — |
| Gabapentin | 19 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | — |
| Levothyroxine Sodium | 16 | — |
| Naproxen | 12 | — |
| Nitrofurantoin Monohyd/M-Cryst |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 1 record (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
Additional practice locations (1)
- 2150 N Waterman Ave Ste 202San Bernardino, CA 92404-4811Phone: (909) 674-1600
Registry dates
- Enumerated
- 2019-03-31
- Last updated
- 2026-03-24
- Certified
- 2026-03-24
Frequently asked questions
- What is Gaynelle De Guzman's NPI number?
- Gaynelle De Guzman's National Provider Identifier (NPI) is 1609337625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gaynelle De Guzman's specialty?
- Gaynelle De Guzman is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gaynelle De Guzman located?
- Gaynelle De Guzman's practice location on file with NPPES is 4240 Highland Ave, Highland, CA 92346-2764.
- What is Gaynelle De Guzman's phone number?
- The practice phone number listed in the NPPES registry for Gaynelle De Guzman is (909) 864-4700.
- Is Gaynelle De Guzman's NPI active?
- Yes — Gaynelle De Guzman's NPI (1609337625) is active in the NPPES registry as of the last update on 2026-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.