Sharon Headrick, P.A
Medical Physician Assistant · Riverside, CA
Sharon Headrick, P.A is a medical physician assistant with a practice address in Riverside, California, and NPI 1710132642, issued on Nov 19, 2008. Check the license (California PA15358, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sharon Headrick
- Credential
- P.A
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA15358 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4646 Brockton Ave, Riverside, CA 92506
- Phone
- (951) 774-2942
- Enumerated
- Nov 19, 2008
- Record last updated
- Nov 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191213001051); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 4646 Brockton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suman Agarwal, MDFamily Medicine Physician1861489098
- Maria Ascencio, FNP-CFamily Nurse Practitioner1497299549
- Mary Barba, NPFamily Nurse Practitioner1447659370
- Victoria Begley, N.P.Nurse Practitioner1760417034
- John Branch, DOFamily Medicine Physician1174510309
- Julie Buchanan, PA-CMedical Physician Assistant1710298005
Verify Sharon Headrick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA15358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average medical physician assistant in 2024
431 Medicare Part D claims for 294 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Ibuprofen60 claims
- Azithromycin50 claims
- Nitrofurantoin Mono-Macro38 claims
- Sulfamethoxazole-Trimethoprim22 claims
- Amoxicillin21 claims
- Albuterol Sulfate Hfa19 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: $13.72
1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. 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.
Bills Medicare through one group practice
- Southern California Emergency MedicineColton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sharon Headrick among 3,376 medical physician assistant records in California
Sharon Headrick, P.A 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 2008, is newer than 32% of them.
- NPI issued2008 · 32% of these records are older, 62% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1999 · median 2012 among the 1,347 with a school on file
- Record last updated2008 · 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 Riverside → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Erika Amthor, PA-CRiverside, CA 925061962808477
- Julie Buchanan, PA-CRiverside, CA 925061710298005
- Jesselyn Fearing, PARiverside, CA 925061134760895
- Joseph Krpalek, PA-CRiverside, CA 925061316450885
- Daryl Kubotsu, PARiverside, CA 925061558344465
- Lesley Laird, PA-CRiverside, CA 925061144313420
- Annamae Minard, PA-CRiverside, CA 925061427019702
- Naomi Radoi, PA-CRiverside, CA 925061386402071
Common questions
What is Sharon Headrick, P.A's NPI number?
Sharon Headrick, P.A's National Provider Identifier (NPI) is 1710132642, issued on Nov 19, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sharon Headrick, P.A located?
The NPPES record lists a practice address at 4646 Brockton Ave, Riverside, CA, 92506. Phone: (951) 774-2942. Providers update this record themselves, so call before visiting.
How can I verify Sharon Headrick, P.A's license?
NPPES lists California license number PA15358, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sharon Headrick, P.A prescribe under Medicare Part D?
In 2024, Sharon Headrick, P.A had 431 Medicare Part D claims for 294 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.