Gregory David Davis, P.A.-C.
Medical Physician Assistant · Lake Isabella, CA
Gregory David Davis, P.A.-C. is a medical physician assistant with a practice address in Lake Isabella, California, and NPI 1033288998, issued on Nov 7, 2006. Check the license (California PA 13448, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory David Davis
- Credential
- P.A.-C.
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA 13448 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Birch Ave, Lake Isabella, CA 93240
- Phone
- (760) 379-1791
- Enumerated
- Nov 7, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (760) 379-1793
- Medicare enrollment
- Enrolled (PECOS I20100813000640); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Verify Gregory David Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA 13448Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average medical physician assistant in 2024
3,012 Medicare Part D claims for 271 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 205 claims were for opioids.
Most prescribed
- Lisinopril185 claims
- Atorvastatin Calcium136 claims
- Amlodipine Besylate135 claims
- Hydrocodone-Acetaminophen126 claims
- Gabapentin107 claims
- Albuterol Sulfate Hfa94 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $44.13
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Kern Valley Healthcare DistrictLake Isabella, CA · Critical Access Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gregory David Davis among 3,376 medical physician assistant records in California
Gregory David Davis, P.A.-C. is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1994 · median 2012 among the 1,347 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 medical physician assistant record lists a practice address in Lake Isabella
They are 1 of the 140 NPPES records with a practice address in Lake Isabella, and 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Lake Isabella → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Kyle Casey, PALemoore, CA 932451659017960
- Karen Atkinson, P.A.Hanford, CA 932301871585968
- Christopher Ellis, P.A.Hanford, CA 932301578664744
- Amy GrigoreHanford, CA 932301396212395
- Erika Mendes-Jones, PA-CHanford, CA 932301326347428
- Jenna Reading, PA-CHanford, CA 932301851875215
- Cristina Rodriguez, PA-CHanford, CA 932301114396710
- Knute Sorensen, PA-CHanford, CA 932301174821169
Common questions
What is Gregory David Davis, P.A.-C.'s NPI number?
Gregory David Davis, P.A.-C.'s National Provider Identifier (NPI) is 1033288998, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory David Davis, P.A.-C. located?
The NPPES record lists a practice address at 4300 Birch Ave, Lake Isabella, CA, 93240. Phone: (760) 379-1791. Providers update this record themselves, so call before visiting.
How can I verify Gregory David Davis, P.A.-C.'s license?
NPPES lists California license number PA 13448, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory David Davis, P.A.-C. prescribe under Medicare Part D?
In 2024, Gregory David Davis, P.A.-C. had 3,012 Medicare Part D claims for 271 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.