Estelle C. Kahn, MD
Dermatology Physician · San Rafael, CA
Estelle C. Kahn, MD is a dermatology physician with a practice address in San Rafael, California, and NPI 1336465517, issued on Apr 14, 2010. Check the license (California A123807, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Estelle C. Kahn
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A123807 CA
Self-reported in NPPES; status is on the state search - Practice location
- 99 Montecillo RD, San Rafael, CA 94903
- Phone
- (415) 450-1067
- Enumerated
- Apr 14, 2010
- Record last updated
- Feb 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20131118000476); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 99 Montecillo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Adelman, MDCardiovascular Disease Physician1396829362
- Navid AfrahPhysical Therapist1275997017
- Omar Ahmed, PHARMDAmbulatory Care Pharmacist1285254037
- Mary Air, M.D.Physical Medicine & Rehabilitation Physician1376772913
- Tarik Alagha, MDInternal Medicine Physician1740869676
- Paul Alpert, MDUrology Physician1417031402
Verify Estelle C. Kahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A123807Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% more Medicare Part D claims than the average dermatology physician in 2024
1,563 Medicare Part D claims for 569 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Fluorouracil218 claims
- Calcipotriene198 claims
- Clobetasol Propionate111 claims
- Triamcinolone Acetonide95 claims
- Hydrocortisone86 claims
- Betamethasone Diprop Augmented82 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
- Permanente Medical Group IncVallejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Estelle C. Kahn among 2,083 dermatology physician records in California
Estelle C. Kahn, 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
- Graduated2009 · median 2006 among the 1,450 with a school on file
- Record last updated2025 · 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 San Rafael → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Kristen Chen, MDSan Rafael, CA 949031952930604
- Ravinder Gogia, MDSan Rafael, CA 949031083872618
- Julia Haimowitz, MDSan Rafael, CA 949031205910205
- Renee Howard, M.D.San Rafael, CA 949031952336232
- Linda Hwang, MDSan Rafael, CA 949031124102116
- Kevin Kim, M.D./PH.D.San Rafael, CA 949031063755734
- Amy Kobalter, M.D.San Rafael, CA 949031902830623
- Matthew Koehler, DOSan Rafael, CA 949031801090519
Common questions
What is Estelle C. Kahn, MD's NPI number?
Estelle C. Kahn, MD's National Provider Identifier (NPI) is 1336465517, issued on Apr 14, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Estelle C. Kahn, MD located?
The NPPES record lists a practice address at 99 Montecillo RD, San Rafael, CA, 94903. Phone: (415) 450-1067. Providers update this record themselves, so call before visiting.
How can I verify Estelle C. Kahn, MD's license?
NPPES lists California license number A123807, 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 Estelle C. Kahn, MD prescribe under Medicare Part D?
In 2024, Estelle C. Kahn, MD had 1,563 Medicare Part D claims for 569 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.