NPPES file of Aug 9, 2026

Lily Chen Greenberg, MD

Dermatology Physician · South Pasadena, CA

Lily Chen Greenberg, MD is a dermatology physician with a practice address in South Pasadena, California, and NPI 1841859527, issued on Jun 6, 2019. Check the license (California A190153, 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
1841859527
Name
Lily Chen Greenberg
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A190153 CA
Self-reported in NPPES; status is on the state search
Practice location
245 Fair Oaks Ave, South Pasadena, CA 91030
Phone
(626) 333-7773
Enumerated
Jun 6, 2019
Record last updated
Aug 5, 2026
Medicare enrollment
Enrolled (PECOS I20231227003411); accepts Medicare assignment
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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Verify Lily Chen Greenberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A190153
    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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56% fewer Medicare Part D claims than the average dermatology physician in 2024

347 Medicare Part D claims for 174 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Lily Greenberg347
  2. Specialty average797

Most prescribed

  1. Ketoconazole67 claims
  2. Triamcinolone Acetonide50 claims
  3. Mupirocin36 claims
  4. Hydrocortisone30 claims
  5. Fluorouracil26 claims
  6. Clobetasol Propionate23 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: $1,701.25

58 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. Lily Greenberg$1,701.25
  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 2 group practices

  1. Center For Advanced Dermatology IncArcadia, CA
  2. Phillip H A Lee MD And Center For Advanced DermatologySouth Pasadena, CA

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

Lily Chen Greenberg among 2,083 dermatology physician records in California

Lily Chen Greenberg, 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 2019, is newer than 89% of them.

  • NPI issued2019 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2019 · median 2006 among the 1,450 with a school on file
  • Record last updated2026 · 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. Jane Wada, MDMontrose, CA 910201609862242
  2. Farah Abdulla, MDDuarte, CA 910101093934390
  3. Courtney Johnson, MD, PHDDuarte, CA 910101326579160
  4. Irene Lao, M.D.Duarte, CA 910101235113457
  5. Badri Modi, MDDuarte, CA 910101457613986
  6. Shirley Chi, M.D.Arcadia, CA 910071902836992
  7. Tammy Chu, PAArcadia, CA 910071407337876
  8. David Voron, M.D.Arcadia, CA 910071780764324

Common questions

What is Lily Chen Greenberg, MD's NPI number?

Lily Chen Greenberg, MD's National Provider Identifier (NPI) is 1841859527, issued on Jun 6, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Lily Chen Greenberg, MD located?

The NPPES record lists a practice address at 245 Fair Oaks Ave, South Pasadena, CA, 91030. Phone: (626) 333-7773. Providers update this record themselves, so call before visiting.

How can I verify Lily Chen Greenberg, MD's license?

NPPES lists California license number A190153, 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 Lily Chen Greenberg, MD prescribe under Medicare Part D?

In 2024, Lily Chen Greenberg, MD had 347 Medicare Part D claims for 174 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.