NPPES file of Aug 9, 2026

Karen Anne Sherwood, M.D.

Dermatopathology Physician · La Canada, CA

Karen Anne Sherwood, M.D. is a dermatopathology physician with a practice address in La Canada, California, and NPI 1386646503, issued on Jun 1, 2005. Check the license (California A42560, 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
1386646503
Name
Karen Anne Sherwood
Credential
M.D.
Primary taxonomy
Dermatopathology Physician 207ND0900X
License number
A42560 CA
Self-reported in NPPES; status is on the state search
Practice location
1346 Foothill Blvd, La Canada, CA 91011
Phone
(818) 790-6726
Enumerated
Jun 1, 2005
Record last updated
Mar 26, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(818) 790-9562
Medicaid ID
00A425600 CA
Medicare enrollment
Enrolled (PECOS I20100608000656); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 1983
Telehealth
Offers telehealth (CMS)
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 1346 Foothill Blvd

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

  1. Sue Breland, DPTPhysical Therapist1902904113
  2. Adrian Castro, M.D.Pediatrics Physician1649430372
  3. Yee-Jean Chou, MDPediatrics Physician1629040431
  4. Vivian ChuiOrthodontics and Dentofacial Orthopedics Dentistry1861679995
  5. John Honch, M.D.Dermatopathology Physician1134121460
  6. Jeaninne Kim, L.AC.Acupuncturist1780719724

Verify Karen Anne Sherwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A42560
    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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55% more Medicare Part D claims than the average dermatopathology physician in 2024

1,076 Medicare Part D claims for 434 beneficiaries, against an average of 693 among the 249 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Karen Sherwood1,076
  2. Specialty average693

Most prescribed

  1. Triamcinolone Acetonide182 claims
  2. Ketoconazole108 claims
  3. Fluorouracil96 claims
  4. Mupirocin82 claims
  5. Doxycycline Hyclate81 claims
  6. Metronidazole74 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Industry payments in 2024: $1,357.01

50 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 233 providers of this specialty with any payment received $2,984.42 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Sherwood$1,357.01
  2. Specialty average$2,984.42

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. Descanso Dermatology Medical GroupLa Canada, CA

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

Karen Anne Sherwood among 64 dermatopathology physician records in California

Karen Anne Sherwood, M.D. is one of 64 dermatopathology physician records with a practice address in California. 80% 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, 83% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1983 · median 1995 among the 44 with a school on file
  • Record last updated2008 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 dermatopathology physician records list a practice address in La Canada

They are 3 of the 222 NPPES records with a practice address in La Canada, and 64 dermatopathology physician records in California.

The 8 dermatopathology physician records with the nearest ZIP codes

  1. John Honch, M.D.La Canada, CA 910111134121460
  2. Mandy Ramani, M.D.La Canada, CA 910111497750640
  3. Christiane Querfeld, MD, PHDDuarte, CA 910101467772533
  4. Dong Chang, M.D., INC.Arcadia, CA 910061235136243
  5. James Esther, M.D.Pasadena, CA 911011932281888
  6. Marilyn Mehlmauer, MDPasadena, CA 911051831389964
  7. Mehran Nowfar-Rad, M.D.Pasadena, CA 911051912979048
  8. Ada Winkielman, MDTarzana, CA 913561992798870

Common questions

What is Karen Anne Sherwood, M.D.'s NPI number?

Karen Anne Sherwood, M.D.'s National Provider Identifier (NPI) is 1386646503, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Karen Anne Sherwood, M.D. located?

The NPPES record lists a practice address at 1346 Foothill Blvd, La Canada, CA, 91011. Phone: (818) 790-6726. Providers update this record themselves, so call before visiting.

How can I verify Karen Anne Sherwood, M.D.'s license?

NPPES lists California license number A42560, 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 Karen Anne Sherwood, M.D. prescribe under Medicare Part D?

In 2024, Karen Anne Sherwood, M.D. had 1,076 Medicare Part D claims for 434 beneficiaries; the average among dermatopathology physician prescribers was 693. Part D covers Medicare prescriptions only.

What is Karen Anne Sherwood, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.