Marit Kay Kreidel, MD
Dermatology Physician · Irvine, CA
Marit Kay Kreidel, MD is a dermatology physician with a practice address in Irvine, California, and NPI 1003117649, issued on Nov 12, 2010. Check the license (California A116418, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marit Kay Kreidel
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A116418 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6 Willard, Irvine, CA 92604
- Phone
- (949) 262-5780
- Enumerated
- Nov 12, 2010
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111027000704); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2007
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 6 Willard
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen BuiPharmacist1124566013
- Jason Castillo, M.D.MOHS-Micrographic Surgery Physician1497098644
- Jun Ho Chae, M.D.Family Medicine Physician1003811969
- Anne Chandsawang, D.O.Family Medicine Physician1679756118
- Carren ChangPharmacist1891234696
- Annie ChauPharmacist1245778265
Verify Marit Kay Kreidel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A116418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% more Medicare Part D claims than the average dermatology physician in 2024
1,419 Medicare Part D claims for 685 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Fluorouracil160 claims
- Betamethasone Diprop Augmented112 claims
- Tacrolimus93 claims
- Fluocinolone Acetonide88 claims
- Triamcinolone Acetonide84 claims
- Ketoconazole76 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 GroupMission Viejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marit Kay Kreidel among 2,083 dermatology physician records in California
Marit Kay Kreidel, 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 2010, is newer than 64% of them.
- NPI issued2010 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2007 · 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 Irvine → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Alyssa Kim, M.D.Irvine, CA 926041629265772
- Howard Lang, M.D.Irvine, CA 926041255404224
- Gary Lee, M.D. , PH.D.Irvine, CA 926041073633467
- Payal Patel, M.D.Irvine, CA 926041295969343
- Hien Tran, M.D.-PH.D.Irvine, CA 926041487851408
- Lauren Yorozuya, MDIrvine, CA 926041073133096
- Ramya Rao, MDIrvine, CA 926021336535699
- Omeed AhadiatFoothill Ranch, CA 926101497250955
Common questions
What is Marit Kay Kreidel, MD's NPI number?
Marit Kay Kreidel, MD's National Provider Identifier (NPI) is 1003117649, issued on Nov 12, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Marit Kay Kreidel, MD located?
The NPPES record lists a practice address at 6 Willard, Irvine, CA, 92604. Phone: (949) 262-5780. Providers update this record themselves, so call before visiting.
How can I verify Marit Kay Kreidel, MD's license?
NPPES lists California license number A116418, 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 Marit Kay Kreidel, MD prescribe under Medicare Part D?
In 2024, Marit Kay Kreidel, MD had 1,419 Medicare Part D claims for 685 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.