Alex Metzger, M.D.
Hematology & Oncology Physician · Greenbrae, CA
Alex Metzger, M.D. is a hematology & oncology physician with a practice address in Greenbrae, California, and NPI 1821070590, issued on Nov 17, 2005. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alex Metzger
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- Practice location
- 1350 S Eliseo Dr, Greenbrae, CA 94904
- Phone
- (415) 925-5000
- Enumerated
- Nov 17, 2005
- Entity
- Type 1 · individual
Also registered at 1350 S Eliseo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Crystal Brierton, MA CCC-SLPSpeech-Language Pathologist1679127716
- Linda Clem, PAPhysician Assistant1104899772
- Ilkcan Cokgor, M.D.Neurology Physician1235100603
- Timothy Crowley, M.D.Specialist1669573937
Verify Alex Metzger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
54% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,361 Medicare Part D claims for 184 beneficiaries, against an average of 885 among the 8,428 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 32 claims were for opioids.
Most prescribed
- Prednisone244 claims
- Abiraterone Acetate226 claims
- Acyclovir83 claims
- Hydroxyurea81 claims
- Eliquis65 claims
- Xtandi50 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: 73.8 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).
Industry payments in 2024: $57.03
2 payments, mostly food and beverage; the largest payer was Medtronic, Inc.. The 6,678 providers of this specialty with any payment received $7,643.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Marin Cancer Care, Inc.Greenbrae, 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.
Hematology & Oncology Physician providers in California
There are 1,306 hematology & oncology physician records in California.
Other hematology & oncology physician records in California
- Mark Abate, M.D.Santa Barbara, CA1588778674
- Iman Abdalla, MDLos Angeles, CA1730248311
- Nihal Abdulla, MDLos Alamitos, CA1750585345
- Oyewale Abidoye, M.D.La Jolla, CA1790841815
- Mohamad Adada, M.D., PHDRoseville, CA1528590734
- Jesse Adams, MDSacramento, CA1851479554
- Thompson Adams, MDSanta Monica, CA1407880891
- Camille Adeimy, MDUpland, CA1477785160
- David Adkins, MDModesto, CA1104883644
- Kent Adler, M.D.San Mateo, CA1013074632
Common questions
What is Alex Metzger, M.D.'s NPI number?
Alex Metzger, M.D.'s National Provider Identifier (NPI) is 1821070590, issued on Nov 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Alex Metzger, M.D. located?
The NPPES record lists a practice address at 1350 S Eliseo Dr, Greenbrae, CA, 94904. Phone: (415) 925-5000. Providers update this record themselves, so call before visiting.
How can I verify Alex Metzger, M.D.'s license?
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 Alex Metzger, M.D. prescribe under Medicare Part D?
In 2024, Alex Metzger, M.D. had 1,361 Medicare Part D claims for 184 beneficiaries; the average among hematology & oncology physician prescribers was 885. Part D covers Medicare prescriptions only.
What is Alex Metzger, M.D.'s Medicare quality score?
The 2023 MIPS final score is 73.8 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.