Karen Hamilton, PA-C
Physician Assistant · Elk Grove, CA
Karen Hamilton, PA-C is a physician assistant with a practice address in Elk Grove, California, and NPI 1821102328, issued on Aug 19, 2006. Check the license (California PA 18075, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Hamilton
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA 18075 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8170 Laguna Blvd, Elk Grove, CA 95758
- Phone
- (916) 478-6561
- Enumerated
- Aug 19, 2006
- Record last updated
- Jul 29, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (916) 478-6573
- Medicare enrollment
- Enrolled (PECOS I20090403000184); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 8170 Laguna Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Hamilton 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 18075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average physician assistant in 2024
192 Medicare Part D claims for 154 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin21 claims
- Amoxicillin-Clavulanate Potass20 claims
- Sulfamethoxazole-Trimethoprim15 claims
- Doxycycline Monohydrate14 claims
- Prednisone14 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
- Sutter Valley Medical FoundationFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Hamilton among 14,451 physician assistant records in California
Karen Hamilton, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2005 · median 2018 among the 7,214 with a school on file
- Record last updated2015 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 physician assistant records list a practice address in Elk Grove
They are 35 of the 3,596 NPPES records with a practice address in Elk Grove, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Elk Grove → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Irina Bails, P.A.Elk Grove, CA 957581174602734
- Corinna Blucher, PA-CElk Grove, CA 957581669567251
- M Jennifer Carmichael, MPA, PA-CElk Grove, CA 957581710102371
- Cheryl Cummings, PA-CElk Grove, CA 957581316049133
- Dustin Handel, PA-CElk Grove, CA 957581609279207
- Christopher Morales-Phan, P.A.-C.Elk Grove, CA 957581194195875
- Nanette Patron, PAElk Grove, CA 957581942285309
- Pamona Purdy, PAElk Grove, CA 957581497088660
Common questions
What is Karen Hamilton, PA-C's NPI number?
Karen Hamilton, PA-C's National Provider Identifier (NPI) is 1821102328, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Hamilton, PA-C located?
The NPPES record lists a practice address at 8170 Laguna Blvd, Elk Grove, CA, 95758. Phone: (916) 478-6561. Providers update this record themselves, so call before visiting.
How can I verify Karen Hamilton, PA-C's license?
NPPES lists California license number PA 18075, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Hamilton, PA-C prescribe under Medicare Part D?
In 2024, Karen Hamilton, PA-C had 192 Medicare Part D claims for 154 beneficiaries; the average among physician assistant prescribers was 830. 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.