NPPES file of Aug 9, 2026

Justin Christopher Kerstetter, M.D.

Dermatopathology (Pathology) Physician · Loma Linda, CA

Justin Christopher Kerstetter, M.D. is a dermatopathology (pathology) physician with a practice address in Loma Linda, California, and NPI 1629241054, issued on Apr 7, 2008. Check the license (California A109169, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629241054
Name
Justin Christopher Kerstetter
Credential
M.D.
Primary taxonomy
Dermatopathology (Pathology) Physician 207ZD0900X
License number
A109169 CA
Self-reported in NPPES; status is on the state search
Practice location
11234 Anderson St, Loma Linda, CA 92354
Phone
(909) 558-4000
Enumerated
Apr 7, 2008
Record last updated
Nov 19, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130803000144); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2008
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 11234 Anderson St

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

  1. Carolyn AbbasiAnesthesiology Physician1811287311
  2. Marian Abdelmalek, DOInternal Medicine Physician1285218024
  3. Faiz Abdur-Rahman, MDStudent in an Organized Health Care Education/Training Program1144073768
  4. Marc Abou AssaliStudent in an Organized Health Care Education/Training Program1689317265
  5. Adina Achiriloaie, MDDiagnostic Neuroimaging (Radiology) Physician1992983282
  6. Ana Acosta, MDStudent in an Organized Health Care Education/Training Program1265179774

Verify Justin Christopher Kerstetter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A109169
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 85.2 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 score71.8
  2. Costout of 100 · 30%64.5
  3. Promoting interoperabilityout of 100 · 25%82.0
  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).

Bills Medicare through 5 group practices

  1. Analytic Pathology Medical Group IncLa Mesa, CA
  2. Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
  3. Justin C Kerstetter MD IncRedlands, CA
  4. Pacific Rim Pathology Medical CorporationSan Diego, CA
  5. Skin And Beauty Center IncBurbank, CA

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

Justin Christopher Kerstetter among 47 dermatopathology (pathology) physician records in California

Justin Christopher Kerstetter, M.D. is one of 47 dermatopathology (pathology) physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 72% of them.

  • NPI issued2008 · 72% of these records are older, 17% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2008 · median 2000 among the 33 with a school on file
  • Record last updated2015 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZD0900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatopathology (Pathology) Physician providers in California

There are 47 dermatopathology (pathology) physician records in California.

The 8 dermatopathology (pathology) physician records with the nearest ZIP codes

  1. Brian Roehmholdt, M.D., PH.D.Fontana, CA 923351083891782
  2. Khanh Tran, M.D.San Diego, CA 921011427066869
  3. Takako Mitsuhashi, M.D.,PH.D.Irvine, CA 926121720290752
  4. Ronald Barr, M.D.Laguna Beach, CA 926511972608016
  5. Raul Delrosario, M.D.Laguna Beach, CA 926511548367402
  6. Joseph Hillman, M.D.Laguna Beach, CA 926511306950415
  7. Lawrence Machtinger, M.D.Laguna Beach, CA 926511750488607
  8. Raelynn Tucker, M.D.Laguna Beach, CA 926511356577258

Common questions

What is Justin Christopher Kerstetter, M.D.'s NPI number?

Justin Christopher Kerstetter, M.D.'s National Provider Identifier (NPI) is 1629241054, issued on Apr 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Justin Christopher Kerstetter, M.D. located?

The NPPES record lists a practice address at 11234 Anderson St, Loma Linda, CA, 92354. Phone: (909) 558-4000. Providers update this record themselves, so call before visiting.

How can I verify Justin Christopher Kerstetter, M.D.'s license?

NPPES lists California license number A109169, 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.

What is Justin Christopher Kerstetter, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.2 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.