Dr. Stephan John Kempiak, MD, PhD

  • San Diego, CA
  • Dermatologist
NPI1215136221PAC ID0244356343
Medicare patients, 2024
19
Part D claims, 2024
1,213
Publications
6
Affiliated sites
1
Medical group
1
Practice address
9455 Clairemont Mesa Blvd, San Diego, CA 92123
Practice phone
Call (619) 528-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kaiser Permanente San Diego Medical Center

San Diego, California

See all 3 affiliations

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Dr. Stephan John Kempiak is a dermatologist in San Diego, California

Dr. Kempiak practices at Kaiser Permanente San Diego Medical Center in San Diego, California.

Dr. Kempiak's NPI, 1215136221, was assigned on July 11, 2007. Dr. Kempiak graduated from Albert Einstein College of Medicine in 2006. Dr. Kempiak's California license number on file is A102166.

NPI and contact details
Medicare PAC ID
0244356343
NPI enumeration date
July 11, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(619) 528-5000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephan John Kempiak practices at Kaiser Permanente San Diego Medical Center in San Diego, California

Dr. Kempiak's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.

  • Kaiser Permanente San Diego Medical Center
    9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Stephan John Kempiak is affiliated with 2 sites of care and 1 medical group

Dr. Kempiak's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Kempiak to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Kempiak

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Stephan John Kempiak's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kempiak practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente San Diego Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephan John Kempiak is one of 1,910 dermatologists in California

Dermatology is Dr. Kempiak's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Kempiak is board certified in dermatology by the American Board of Dermatology. Dr. Kempiak has a license on file in California.

Specialties and state licenses

  • Dermatology, CaliforniaPrimaryLicense A102166 · 2007 to 2025 · taxonomy 207N00000X

Clinical focus

Dmand AI lists psoriasis and scalp rash among the conditions Dr. Kempiak treats.

Dermatologists near Dr. Kempiak

Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephan John Kempiak treated 19 Medicare patients in 2024, average age 72

CMS counts 19 Medicare patients who saw Dr. Kempiak in 2024. Their average risk score is 1.08, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kempiak's median patient age at 51, with 53% women.

Medicare patients, 202419
Average age72
Average risk score1.08

Dr. Kempiak's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 51

Patient panel by sex, all payers

  • Women53%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephan John Kempiak wrote 1,213 Medicare Part D claims in 2024

In 2024, Dr. Kempiak wrote 1,213 Medicare Part D claims for 503 patients. 88% of them were for generic drugs. CMS names the drug for 1,065 of them, across 25 drugs with 11 or more claims each, at $307,822 in total drug cost. In 2023, CMS named 1,031 claims across 23 drugs.

Part D claims, 20241,213
Drugs named by CMS25
Total drug cost$307,822
Part D patients503

Dr. Kempiak's Part D claims by kind of drug, 2024

  • Generic1,072 claims88%
  • Brand-name141 claims12%

Dr. Kempiak's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Kempiak's Part D claims, 2024

  • Antibiotics4%54 of 1,213 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,0312024: 1,0653%

Drugs named by CMS: 25 in 2024, 23 in 2023.

See all prescribing by Dr. Kempiak

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Stephan John Kempiak takes part in Medicare

Dr. Kempiak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Stephan John Kempiak has 6 publications on record

Dmand AI links 6 papers to Dr. Kempiak, published from 2004 to 2009. 2004 was the busiest year, with 2. The most frequent topics are Epidermal Growth Factor, Signal Transduction and Actins. Dr. Kempiak's most frequent co-authors are Pristine Lee, MD and Nathan S. Uebelhoer, DO.

Papers6
Years published2004 to 2009

Topics Dr. Kempiak writes about most

  • Epidermal Growth Factor
  • Signal Transduction
  • Actins
  • Cell Line, Tumor
  • Microfilament Proteins

Dr. Kempiak's most frequent co-authors

Recent publications by Dr. Kempiak

See all 6 publications and co-authors

See who Dr. Kempiak researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kempiak works with, so you can find a warm path to the right dermatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Stephan John Kempiak has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Kempiak, most recently AAD Fellow in 2011.

Awards and honors for Dr. Kempiak

  1. 2011
    • AAD Fellow
  2. Undated
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Stephan John Kempiak graduated from Albert Einstein College of Medicine

Dr. Kempiak graduated from Albert Einstein College of Medicine in 2006. Dr. Kempiak is a member of AAD.

  1. Medical schoolAlbert Einstein College of Medicine
  2. Board certified in dermatologyAmerican Board of Dermatology

Source: Dmand AI Professional Profile Data

Dr. Stephan John Kempiak accepts plans from 2 insurance carriers

Dr. Kempiak is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Dr. Kempiak accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephan John Kempiak's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Stephan John Kempiak

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Stephan John Kempiak's NPI number?

Dr. Stephan John Kempiak's NPI number is 1215136221. It was assigned on July 11, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephan John Kempiak?

Dr. Stephan John Kempiak is a dermatologist in San Diego, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Dr. Stephan John Kempiak practice?

Dr. Kempiak practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Kempiak's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Dr. Kempiak to 1 group practice or clinic.

What is Dr. Stephan John Kempiak's office phone number?

The practice phone on file for Dr. Kempiak is (619) 528-5000.

What is Dr. Stephan John Kempiak's medical license number?

Dr. Kempiak's California license number on file is A102166.

What medical group is Dr. Stephan John Kempiak part of?

Dr. Kempiak is linked to Southern California Permanente Medical Group.

Does Dr. Stephan John Kempiak accept Medicare?

Yes. CMS lists Dr. Kempiak as accepting Medicare assignment.

How many Medicare patients does Dr. Stephan John Kempiak see?

CMS counts 19 Medicare patients who saw Dr. Kempiak in 2024, with an average age of 72.

Is Dr. Stephan John Kempiak board certified?

Yes. Dr. Kempiak is board certified in dermatology by the American Board of Dermatology.

Where did Dr. Stephan John Kempiak go to medical school?

Dr. Kempiak graduated from Albert Einstein College of Medicine in 2006.

Show 5 more questionsShow fewer questions

What drugs does Dr. Stephan John Kempiak prescribe most?

In 2024 Medicare Part D data, Dr. Kempiak's most prescribed drugs by claims were Fluocinonide, Clobetasol Propionate and Triamcinolone Acetonide.

How long has Dr. Stephan John Kempiak been practicing?

Dr. Kempiak graduated from medical school in 2006, 20 years ago.

Does Dr. Stephan John Kempiak do research?

Dmand AI links 6 publications to Dr. Kempiak, published from 2004 to 2009.

Who does Dr. Stephan John Kempiak publish with?

Dr. Kempiak's most frequent co-authors are Pristine Lee, MD (1 shared paper) and Nathan S. Uebelhoer, DO (1 shared paper).

What insurance does Dr. Stephan John Kempiak accept?

Dr. Kempiak is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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