NPPES file of Aug 9, 2026

Joy M. Twersky, M.D.

Dermatology Physician · Woodland Hills, CA

Joy M. Twersky, M.D. is a dermatology physician with a practice address in Woodland Hills, California, and NPI 1699888156, issued on Aug 17, 2006. Check the license (California A89925, 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
1699888156
Name
Joy M. Twersky
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
A89925 CA
Self-reported in NPPES; status is on the state search
Practice location
5601 DE Soto Ave, Woodland Hills, CA 91367
Phone
(818) 719-2307
Enumerated
Aug 17, 2006
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(818) 719-2079
Medicare enrollment
Enrolled (PECOS I20090103000020); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 1999
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 5601 DE Soto Ave

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

  1. Houry Abajian, PHARM.D.Pharmacist1235297383
  2. Cecille Abeleda, RCP, RRTRegistered Respiratory Therapist1316424872
  3. Sunitha AbrahamCertified Respiratory Therapist1114409679
  4. Arineh AbramPharmacist1760108401
  5. Stephano Abusleme, DOStudent in an Organized Health Care Education/Training Program1538747639
  6. Ani Adamian, PHARM DPharmacist1043841851

Verify Joy M. Twersky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A89925
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average dermatology physician in 2024

93 Medicare Part D claims for 63 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Joy Twersky93
  2. Specialty average797

Most prescribed

  1. Imiquimod28 claims
  2. Calcipotriene19 claims
  3. Adacel Tdap18 claims
  4. Fluorouracil18 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

  1. Southern California Permanente Medical GroupWoodland Hills, CA

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

Joy M. Twersky among 2,083 dermatology physician records in California

Joy M. Twersky, M.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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 56% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1999 · 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.

The 8 dermatology physician records with the nearest ZIP codes

  1. Lauren Cao, M.D.Woodland Hills, CA 913671124318779
  2. Le Wen Chiu, MDWoodland Hills, CA 913671467187096
  3. Mark Guralnick, MDWoodland Hills, CA 913671568510436
  4. Stuart Israel, MDWoodland Hills, CA 913671962561530
  5. Natanel Jourabchi, M.D.Woodland Hills, CA 913671659710051
  6. Chi Rosenberg, MDWoodland Hills, CA 913671154479038
  7. William Schweitzer, MDWoodland Hills, CA 913671689733206
  8. Adam Zakaria, MDWoodland Hills, CA 913671457001083

Common questions

What is Joy M. Twersky, M.D.'s NPI number?

Joy M. Twersky, M.D.'s National Provider Identifier (NPI) is 1699888156, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joy M. Twersky, M.D. located?

The NPPES record lists a practice address at 5601 DE Soto Ave, Woodland Hills, CA, 91367. Phone: (818) 719-2307. Providers update this record themselves, so call before visiting.

How can I verify Joy M. Twersky, M.D.'s license?

NPPES lists California license number A89925, 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 Joy M. Twersky, M.D. prescribe under Medicare Part D?

In 2024, Joy M. Twersky, M.D. had 93 Medicare Part D claims for 63 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.