NPPES file of Aug 9, 2026

Chi Rosenberg, MD

Dermatology Physician · Woodland Hills, CA

Chi Rosenberg, MD is a dermatology physician with a practice address in Woodland Hills, California, and NPI 1154479038, issued on Jan 8, 2007. Check the license (California G85303, 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
1154479038
Name
Chi Rosenberg
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
G85303 CA
Self-reported in NPPES; status is on the state search
Practice location
5601 DE Soto Ave, Woodland Hills, CA 91367
Phone
(818) 719-2000
Enumerated
Jan 8, 2007
Record last updated
Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050427000461); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 1994
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 Chi Rosenberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G85303
    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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2.0 times the Medicare Part D claims of the average dermatology physician in 2024

1,599 Medicare Part D claims for 499 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.

  1. Chi Rosenberg1,599
  2. Specialty average797

Most prescribed

  1. Clobetasol Propionate247 claims
  2. Minoxidil111 claims
  3. Metronidazole94 claims
  4. Triamcinolone Acetonide82 claims
  5. Fluorouracil53 claims
  6. Betamethasone Diprop Augmented52 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).

Chi Rosenberg among 2,083 dermatology physician records in California

Chi Rosenberg, 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 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1994 · 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. William Schweitzer, MDWoodland Hills, CA 913671689733206
  7. Joy Twersky, M.D.Woodland Hills, CA 913671699888156
  8. Adam Zakaria, MDWoodland Hills, CA 913671457001083

Common questions

What is Chi Rosenberg, MD's NPI number?

Chi Rosenberg, MD's National Provider Identifier (NPI) is 1154479038, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Chi Rosenberg, MD located?

The NPPES record lists a practice address at 5601 DE Soto Ave, Woodland Hills, CA, 91367. Phone: (818) 719-2000. Providers update this record themselves, so call before visiting.

How can I verify Chi Rosenberg, MD's license?

NPPES lists California license number G85303, 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 Chi Rosenberg, MD prescribe under Medicare Part D?

In 2024, Chi Rosenberg, MD had 1,599 Medicare Part D claims for 499 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.