Gregory Davis, P.A.-C.
NPI 1033288998 · Medical Physician Assistant · Lake Isabella, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Davis, P.A.-C. is a Medical Physician Assistant provider in Lake Isabella, CA (NPI 1033288998).
Provider details
- NPI number
- 1033288998
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.-C.
- Sex
- Male
- Sole proprietor
- No
- License
- PA 13448 (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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 185 | 55 |
| Atorvastatin Calcium | 136 | 42 |
| Amlodipine Besylate | 135 | 38 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 126 | 29 |
| Gabapentin | 107 | 30 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 94 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$44 across 2 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
- 2006-11-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Davis's NPI number?
- Gregory Davis's National Provider Identifier (NPI) is 1033288998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Davis's specialty?
- Gregory Davis is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Davis located?
- Gregory Davis's practice location on file with NPPES is 4300 Birch Ave, Lake Isabella, CA 93240-1628.
- What is Gregory Davis's phone number?
- The practice phone number listed in the NPPES registry for Gregory Davis is (760) 379-1791.
- Does Gregory Davis accept Medicare?
- Gregory Davis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Davis's NPI active?
- Yes — Gregory Davis's NPI (1033288998) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.