NPPES file of Aug 9, 2026

Ross Stuart Kaplan, MD

Dermatology Physician · Camarillo, CA

Ross Stuart Kaplan, MD is a dermatology physician with a practice address in Camarillo, California, and NPI 1982600011, issued on Jun 23, 2005. Check the license (California A55764, 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
1982600011
Name
Ross Stuart Kaplan
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A55764 CA
Self-reported in NPPES; status is on the state search
Practice location
3615 Las Posas RD, Camarillo, CA 93010
Phone
(805) 484-2813
Enumerated
Jun 23, 2005
Record last updated
Aug 9, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(805) 484-2316
Medicare enrollment
Enrolled (PECOS I20070514000600); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 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 3615 Las Posas RD

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

  1. Garrett Toy, D.D.S.Dentist1154316271

Verify Ross Stuart Kaplan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A55764
    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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33% fewer Medicare Part D claims than the average dermatology physician in 2024

534 Medicare Part D claims for 304 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. Ross Kaplan534
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide148 claims
  2. Metronidazole102 claims
  3. Ketoconazole51 claims
  4. Fluocinolone Acetonide36 claims
  5. Clotrimazole-Betamethasone33 claims
  6. Hydrocortisone32 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): 77.9 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. Qualityout of 100 · 30% of the final score58.1
  2. Costout of 100 · 30%74.0
  3. Promoting interoperabilityout of 100 · 25%93.0
  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: $132.64

5 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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. Ross Kaplan$132.64
  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. J Robert West MD IncCamarillo, CA

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

Ross Stuart Kaplan among 2,083 dermatology physician records in California

Ross Stuart Kaplan, 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
  • Graduated1994 · median 2006 among the 1,450 with a school on file
  • Record last updated2013 · 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. Lingyun DuCamarillo, CA 930101730541707
  2. Gerald Karpman, M.D.Camarillo, CA 930101619905437
  3. Jill Mines, MDCamarillo, CA 930101003840869
  4. Rebecca Nguyen, MDCamarillo, CA 930101164982922
  5. Edward Searle, M.D.Camarillo, CA 930101225013105
  6. James Taft, D.O.Camarillo, CA 930101053308239
  7. Patricia Walker, M.D. PH.D.Carpinteria, CA 930131619173200
  8. Larissa Larsen, M.D.Ventura, CA 930031063733426

Common questions

What is Ross Stuart Kaplan, MD's NPI number?

Ross Stuart Kaplan, MD's National Provider Identifier (NPI) is 1982600011, issued on Jun 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ross Stuart Kaplan, MD located?

The NPPES record lists a practice address at 3615 Las Posas RD, Camarillo, CA, 93010. Phone: (805) 484-2813. Providers update this record themselves, so call before visiting.

How can I verify Ross Stuart Kaplan, MD's license?

NPPES lists California license number A55764, 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 Ross Stuart Kaplan, MD prescribe under Medicare Part D?

In 2024, Ross Stuart Kaplan, MD had 534 Medicare Part D claims for 304 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Ross Stuart Kaplan, MD's MIPS final score?

The 2023 MIPS final score is 77.9 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.