Karl Gaal, MD
Hematology (Pathology) Physician · Duarte, CA
Karl Gaal, MD is a hematology (pathology) physician with a practice address in Duarte, California, and NPI 1710943543, issued on Apr 21, 2006. Check the license (California A60183, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karl Gaal
- Credential
- MD
- Primary taxonomy
- Hematology (Pathology) Physician 207ZH0000X
- License number
- A60183 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Duarte RD, Duarte, CA 91010
- Phone
- (626) 359-8111
- Enumerated
- Apr 21, 2006
- Entity
- Type 1 · individual
Also registered at 1500 E Duarte RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elizabeth Bernardi, PA CPhysician Assistant1699980896
Verify Karl Gaal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A60183Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
The practice group's Medicare quality score for 2023: 99.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City OF Hope Medical FoundationDuarte, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Hematology (Pathology) Physician providers in California
There are 65 hematology (pathology) physician records in California.
Other hematology (pathology) physician records in California
- Fouad Abdelhalim, M.D.Carlsbad, CA1790073583
- Michelle Afkhami, M.D.Duarte, CA1326230228
- Sally Agersborg, M.D., PH.D.Irvine, CA1053505743
- Sue Beruti, M.D.Carlsbad, CA1770861957
- Patrick Browne, M.D., PH.D.Los Angeles, CA1972798726
- Sing-Tsung Chen, M.D., PH.D.Aliso Viejo, CA1508980137
- Wayne Chen, MD PHDIrvine, CA1417171505
- Tse-Chang Cheng, MDLos Angeles, CA1851462733
- Vladislav Chizhevsky, M.D.Aliso Viejo, CA1952689242
- Adam Cloe, M.D.Los Angeles, CA1639519770
Common questions
What is Karl Gaal, MD's NPI number?
Karl Gaal, MD's National Provider Identifier (NPI) is 1710943543, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karl Gaal, MD located?
The NPPES record lists a practice address at 1500 E Duarte RD, Duarte, CA, 91010. Phone: (626) 359-8111. Providers update this record themselves, so call before visiting.
How can I verify Karl Gaal, MD's license?
NPPES lists California license number A60183, 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 Karl Gaal, MD's Medicare quality score?
The 2023 MIPS final score is 99.1 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), loaded Aug 27, 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) 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 27, 2026.