Parker Hollingsworth, MD
Dermatology Physician · Roseville, CA
Parker Hollingsworth, MD is a dermatology physician with a practice address in Roseville, California, and NPI 1508325317, issued on Mar 19, 2019. Check the license (California A186371, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Parker Hollingsworth
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A186371 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3 Medical Plaza Dr Ste 230, Roseville, CA 95661
- Phone
- (530) 885-6221
- Enumerated
- Mar 19, 2019
- Record last updated
- Jul 18, 2023
- Medicare enrollment
- Enrolled (PECOS I20230804001200); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 3 Medical Plaza Dr Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Mihailides, M.D.Dermatology Physician1285169607
Verify Parker Hollingsworth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A186371Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% more Medicare Part D claims than the average dermatology physician in 2024
1,226 Medicare Part D claims for 493 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Triamcinolone Acetonide202 claims
- Clobetasol Propionate171 claims
- Hydrocortisone110 claims
- Ketoconazole110 claims
- Fluorouracil85 claims
- Fluocinonide54 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 FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Parker Hollingsworth among 2,083 dermatology physician records in California
Parker Hollingsworth, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 89% of them.
- NPI issued2019 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2019 · median 2006 among the 1,450 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Roseville → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Stephen Borchers, MDRoseville, CA 956611992883672
- Christine Doherty, M.D.Roseville, CA 956611073776613
- Sean Doherty, M.D.Roseville, CA 956611578726121
- Scott Hearth, M.D.Roseville, CA 956611548366727
- Artur Henke, MDRoseville, CA 956611932287653
- Emily Jong, MDRoseville, CA 956611881772531
- Linda Lee, M.D. PH.D. M.P.H.Roseville, CA 956611912999558
- Karen Nishimura, MDRoseville, CA 956611730284878
Common questions
What is Parker Hollingsworth, MD's NPI number?
Parker Hollingsworth, MD's National Provider Identifier (NPI) is 1508325317, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Parker Hollingsworth, MD located?
The NPPES record lists a practice address at 3 Medical Plaza Dr Ste 230, Roseville, CA, 95661. Phone: (530) 885-6221. Providers update this record themselves, so call before visiting.
How can I verify Parker Hollingsworth, MD's license?
NPPES lists California license number A186371, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Parker Hollingsworth, MD prescribe under Medicare Part D?
In 2024, Parker Hollingsworth, MD had 1,226 Medicare Part D claims for 493 beneficiaries; the average among dermatology physician prescribers was 797. 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.