NPPES file of Aug 9, 2026

Peter Chansky, MD

Dermatology Physician · San Francisco, CA

Peter Chansky, MD is a dermatology physician with a practice address in San Francisco, California, and NPI 1356846588, issued on Mar 28, 2018. Check the license (California A178808, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356846588
Name
Peter Chansky
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A178808 CA
Self-reported in NPPES; status is on the state search
Practice location
3838 California St RM 610, San Francisco, CA 94118
Phone
(415) 387-8007
Enumerated
Mar 28, 2018
Record last updated
Mar 8, 2024
Fax
(415) 387-8008
Medicare enrollment
Enrolled (PECOS I20220818001414); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3838 California St RM 610

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Francis Hsiao, M.D., PHD.Dermatology Physician1982855185
  2. Nicole Melet, P.A.Medical Physician Assistant1477657971

Verify Peter Chansky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A178808
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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49% fewer Medicare Part D claims than the average dermatology physician in 2024

409 Medicare Part D claims for 180 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.

  1. Peter Chansky409
  2. Specialty average797

Most prescribed

  1. Ketoconazole112 claims
  2. Clobetasol Propionate74 claims
  3. Triamcinolone Acetonide39 claims
  4. Fluorouracil24 claims
  5. Azelaic Acid13 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.

Industry payments in 2024: $8,133.66

261 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Peter Chansky$8,133.66
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Csi Medical GroupDaly City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter Chansky among 2,083 dermatology physician records in California

Peter Chansky, 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 2018, is newer than 86% of them.

  • NPI issued2018 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2018 · median 2006 among the 1,450 with a school on file
  • Record last updated2024 · 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.

The 8 dermatology physician records with the nearest ZIP codes

  1. Deirdre Alexander, M.D.San Francisco, CA 941181033491873
  2. Gerald Gellin, MDSan Francisco, CA 941181407827405
  3. Gail Genant, MDSan Francisco, CA 941181285750604
  4. Francis Hsiao, M.D., PHD.San Francisco, CA 941181982855185
  5. Lawrence Kaminsky, M.D.San Francisco, CA 941181881613313
  6. Pui-Yan Kwok, MD PHDSan Francisco, CA 941181386660611
  7. Wilson Liao, M.D.San Francisco, CA 941181528194255
  8. Helen Manber, MDSan Francisco, CA 941181154354363

Common questions

What is Peter Chansky, MD's NPI number?

Peter Chansky, MD's National Provider Identifier (NPI) is 1356846588, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Peter Chansky, MD located?

The NPPES record lists a practice address at 3838 California St RM 610, San Francisco, CA, 94118. Phone: (415) 387-8007. Providers update this record themselves, so call before visiting.

How can I verify Peter Chansky, MD's license?

NPPES lists California license number A178808, 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 Peter Chansky, MD prescribe under Medicare Part D?

In 2024, Peter Chansky, MD had 409 Medicare Part D claims for 180 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.