Guido Marcucci, M.D.
Hematology (Internal Medicine) Physician · Duarte, CA
Guido Marcucci, M.D. is a hematology (internal medicine) physician with a practice address in Duarte, California, and NPI 1689689127, issued on Jul 31, 2006. Check the license (California C134913, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Guido Marcucci
- Credential
- M.D.
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License numbers
- C134913 CA
35072976 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Duarte RD, Duarte, CA 91010
- Phone
- (626) 256-4673
- Enumerated
- Jul 31, 2006
- Entity
- Type 1 · individual
Also registered at 1500 Duarte RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsea Abad, CRNP, AGPCNP - BCNurse Practitioner1952848137
- Wajidah Abdul-KhabirHospitalist Physician1215323522
- Farah Abdulla, MDDermatology Physician1093934390
- Megan Abel, PA-CPhysician Assistant1104100619
- Michelle Afkhami, M.D.Molecular Genetic Pathology (Pathology) Physician1326230228
- Vaibhav Agrawal, M.D.Student in an Organized Health Care Education/Training Program1538402565
Verify Guido Marcucci in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C134913Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
88% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
80 Medicare Part D claims for 16 beneficiaries, against an average of 684 among the 1,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 75% of claims.
Most prescribed
- Jakafi47 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 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).
One hospital or facility affiliation
- City OF Hope Medical FoundationNewport Beach, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
19 hematology (internal medicine) physician records list a Duarte practice address
They are 19 of the 1,287 NPPES records with a Duarte practice address, and 132 hematology (internal medicine) physician records in California.
All 19 in Duarte → All 132 in California → Every provider in Duarte →
Other hematology (internal medicine) physician records in California
- Haifaa Abdulhaq, MDFresno, CA1508024647
- John Adamson, MDSan Diego, CA1477504801
- Julio Alvarenga Thiebaud, M.D.Irvine, CA1457770497
- Idoroenyi Amanam, M.D.Duarte, CA1205257920
- Ian Anderson, M.D.Santa Rosa, CA1518055573
- Sally Arai, MDStanford, CA1881739530
- Shirin Attarian, M.D.Orange, CA1427310713
- Kavya Babu, MDSacramento, CA1922682392
- John Baird, MDDuarte, CA1427493998
- Brian Ball, M.D.Duarte, CA1356754683
Common questions
What is Guido Marcucci, M.D.'s NPI number?
Guido Marcucci, M.D.'s National Provider Identifier (NPI) is 1689689127, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guido Marcucci, M.D. located?
The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.
How can I verify Guido Marcucci, M.D.'s license?
NPPES lists California license number C134913, 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 Guido Marcucci, M.D. prescribe under Medicare Part D?
In 2024, Guido Marcucci, M.D. had 80 Medicare Part D claims for 16 beneficiaries; the average among hematology (internal medicine) physician prescribers was 684. Part D covers Medicare prescriptions only.
What is Guido Marcucci, M.D.'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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.