Spencer Dayton Packer
Medical Physician Assistant · Porterville, CA
Spencer Dayton Packer is a medical physician assistant with a practice address in Porterville, California, and NPI 1174859730, issued on Nov 2, 2009. Check the license (California PA23178, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Spencer Dayton Packer
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA23178 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1107 W Poplar Ave, Porterville, CA 93257
- Phone
- (559) 781-7242
- Enumerated
- Nov 2, 2009
- Record last updated
- Aug 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (559) 793-3174
- Medicare enrollment
- Enrolled (PECOS I20150303001540); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 1107 W Poplar Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Altman, FNP-CFamily Nurse Practitioner1154942209
- Wendmnew Ayalew, PA-CPhysician Assistant1346738721
- Kourtney Baker, PAMedical Physician Assistant1740965748
- David Belnap, PAPhysician Assistant1760175426
- Spruha Bhavsar, PHARMDPharmacist1417657131
- Eric BickmoreFamily Medicine Physician1346716016
Verify Spencer Dayton Packer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA23178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average medical physician assistant in 2024
1,390 Medicare Part D claims for 199 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium80 claims
- Metformin Hcl54 claims
- Lisinopril51 claims
- Gabapentin49 claims
- Albuterol Sulfate Hfa45 claims
- Ibuprofen38 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.
Bills Medicare through one group practice
- Kaweah Delta Health Care DistrictVisalia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer Dayton Packer among 3,376 medical physician assistant records in California
Spencer Dayton Packer 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 2009, is newer than 38% of them.
- NPI issued2009 · 38% of these records are older, 58% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2013 · median 2012 among the 1,347 with a school on file
- Record last updated2014 · 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).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Porterville → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Kourtney Baker, PAPorterville, CA 932571740965748
- Aaron Currie, PHYSICIAN ASSISTANTPorterville, CA 932571922032499
- Jasmine HerreraPorterville, CA 932571609742931
- Angie NamPorterville, CA 932571912466269
- Darla Splawn, PA-CPorterville, CA 932571093049140
- Haylee Foch, PAShafter, CA 932631992455109
- Furqan Raja, PATaft, CA 932681710210232
- Francisco Ruiz, P.A.Taft, CA 932681316158645
Common questions
What is Spencer Dayton Packer's NPI number?
Spencer Dayton Packer's National Provider Identifier (NPI) is 1174859730, issued on Nov 2, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Dayton Packer located?
The NPPES record lists a practice address at 1107 W Poplar Ave, Porterville, CA, 93257. Phone: (559) 781-7242. Providers update this record themselves, so call before visiting.
How can I verify Spencer Dayton Packer's license?
NPPES lists California license number PA23178, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Spencer Dayton Packer prescribe under Medicare Part D?
In 2024, Spencer Dayton Packer had 1,390 Medicare Part D claims for 199 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.