NPPES file of Aug 9, 2026

Lydia Carpenter, MD

Dermatology Physician · Valencia, CA

Lydia Carpenter, MD is a dermatology physician with a practice address in Valencia, California, and NPI 1972594893, issued on Oct 31, 2005. Check the license (California A84038, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972594893
Name
Lydia Carpenter
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A84038 CA
Self-reported in NPPES; status is on the state search
Practice location
23501 Cinema Dr Ste 111, Valencia, CA 91355
Phone
(661) 258-3811
Enumerated
Oct 31, 2005
Record last updated
Jun 9, 2026
Fax
(661) 382-8343
Medicare enrollment
Enrolled (PECOS I20200410000356); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2002
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 23501 Cinema Dr Ste 111

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

  1. Erica Moran, PAPhysician Assistant1992453195

Verify Lydia Carpenter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A84038
    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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63% fewer Medicare Part D claims than the average dermatology physician in 2024

298 Medicare Part D claims for 125 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Lydia Carpenter298
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide64 claims
  2. Ketoconazole35 claims
  3. Clobetasol Propionate23 claims
  4. Minoxidil20 claims
  5. Fluorouracil15 claims
  6. Hydrocortisone13 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 82 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $29.16

2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. 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. Lydia Carpenter$29.16
  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. Skin And Beauty Center IncValencia, CA

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

Lydia Carpenter among 2,083 dermatology physician records in California

Lydia Carpenter, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2002 · 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. Patricia Cavender, MDValencia, CA 913551487626867
  2. Catherine Close, MDSanta Clarita, CA 913551346413143
  3. Gary Klein, M.D.Valencia, CA 913551285732388
  4. Diana Kneiber, MDSanta Clarita, CA 913551063973543
  5. Michael McCray, MDValencia, CA 913551235282856
  6. Bernard Raskin, MDValencia, CA 913551013941962
  7. Yang Yu, M.D.Valencia, CA 913551619241452
  8. Pedram Ghasri, M.D.Tarzana, CA 913561639429178

Common questions

What is Lydia Carpenter, MD's NPI number?

Lydia Carpenter, MD's National Provider Identifier (NPI) is 1972594893, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lydia Carpenter, MD located?

The NPPES record lists a practice address at 23501 Cinema Dr Ste 111, Valencia, CA, 91355. Phone: (661) 258-3811. Providers update this record themselves, so call before visiting.

How can I verify Lydia Carpenter, MD's license?

NPPES lists California license number A84038, 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 Lydia Carpenter, MD prescribe under Medicare Part D?

In 2024, Lydia Carpenter, MD had 298 Medicare Part D claims for 125 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Lydia Carpenter, MD's MIPS final score?

The 2023 MIPS final score is 82 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.