Stephan John Kempiak, M.D,PH.D
Dermatology Physician · La Mesa, CA
Stephan John Kempiak, M.D,PH.D is a dermatology physician with a practice address in La Mesa, California, and NPI 1215136221, issued on Jul 11, 2007. Check the license (California A102166, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephan John Kempiak
- Credential
- M.D,PH.D
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A102166 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8080 Parkway Dr, La Mesa, CA 91942
- Phone
- (800) 290-5000
- Enumerated
- Jul 11, 2007
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 1215136221 CA
- Medicare enrollment
- Enrolled (PECOS I20100927000578); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2006
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 8080 Parkway Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsea Bergeron, PHARMDPharmacist1992177935
- Jonathan Brick, D.O.Family Medicine Physician1033596168
- Catherine Cheng, D.O.Family Medicine Physician1538302658
- Hans Chin, M.D.Internal Medicine Physician1376616144
- Leeann Dohring, M.D.Family Medicine Physician1487800660
- Ronnie Hannosh, PHARMDPharmacist1841757572
Verify Stephan John Kempiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A102166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average dermatology physician in 2024
1,213 Medicare Part D claims for 503 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Fluocinonide145 claims
- Clobetasol Propionate135 claims
- Triamcinolone Acetonide125 claims
- Fluorouracil106 claims
- Hydrocortisone55 claims
- Metronidazole50 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
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephan John Kempiak among 2,083 dermatology physician records in California
Stephan John Kempiak, M.D,PH.D 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2006 · median 2006 among the 1,450 with a school on file
- Record last updated2021 · 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 La Mesa → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Robert BushmanLa Mesa, CA 919421578561692
- Tina Chen, M.D.La Mesa, CA 919421073759627
- Katherine Clyman, M.D.La Mesa, CA 919421497789747
- Jerome Eisman, M.D.La Mesa, CA 919421629006226
- Maya Firsowicz, MDLa Mesa, CA 919421194353631
- Maki GoskowiczLa Mesa, CA 919421821096942
- Brian Kleker, M.D.La Mesa, CA 919421205091170
- Tamara Schnurr, MDLa Mesa, CA 919421336110816
Common questions
What is Stephan John Kempiak, M.D,PH.D's NPI number?
Stephan John Kempiak, M.D,PH.D's National Provider Identifier (NPI) is 1215136221, issued on Jul 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephan John Kempiak, M.D,PH.D located?
The NPPES record lists a practice address at 8080 Parkway Dr, La Mesa, CA, 91942. Phone: (800) 290-5000. Providers update this record themselves, so call before visiting.
How can I verify Stephan John Kempiak, M.D,PH.D's license?
NPPES lists California license number A102166, 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 Stephan John Kempiak, M.D,PH.D prescribe under Medicare Part D?
In 2024, Stephan John Kempiak, M.D,PH.D had 1,213 Medicare Part D claims for 503 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.