Nicholas Peter Giustini, M.D.
Hematology & Oncology Physician · Seattle, WA
Nicholas Peter Giustini, M.D. is a hematology & oncology physician with a practice address in Seattle, Washington, and NPI 1154718104, issued on Apr 16, 2015. Check the license (Washington MD61169776, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nicholas Peter Giustini
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD61169776 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 9TH Ave, Seattle, WA 98104
- Phone
- (206) 744-3000
- Enumerated
- Apr 16, 2015
- Record last updated
- Aug 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210805000691); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 476 in Washington → Look up another NPI →
Also registered at 325 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Aaf, PA-CMedical Physician Assistant1558394171
- Sheida Aalami, M.D.Internal Medicine Physician1730573296
- Collette AbbottHospitalist Physician1306208293
- Akrm Abdalrahman, MD, MSCritical Care Medicine (Anesthesiology) Physician1801374905
- Martin Abdo, COUNSELORCounselor1821202904
- Nauzley Abedini, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1043637408
Verify Nicholas Peter Giustini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61169776Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
180 Medicare Part D claims for 31 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims. 19 claims were for opioids.
Most prescribed
- Tagrisso46 claims
- Oxycodone Hcl16 claims
- Abiraterone Acetate13 claims
- Prednisone12 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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Peter Giustini among 476 hematology & oncology physician records in Washington
Nicholas Peter Giustini, M.D. is one of 476 hematology & oncology physician records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2015 · median 2006 among the 294 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Washington
There are 476 hematology & oncology physician records in Washington.
All 476 in Washington → Every provider in Seattle → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Sharmila Ahmed, MDSeattle, WA 981041073512141
- Atis Barzdins, M.D.Seattle, WA 981041275640179
- Antonio Bedalov, MDSeattle, WA 981041407844467
- Virginia BroudySeattle, WA 981041194801811
- James Bryan, MDSeattle, WA 981041467440446
- Daniel Burns, MDSeattle, WA 981041689630063
- Cynthia Chua, MDSeattle, WA 981041700879582
- Sheldon Goldberg, MDSeattle, WA 981041649266321
Common questions
What is Nicholas Peter Giustini, M.D.'s NPI number?
Nicholas Peter Giustini, M.D.'s National Provider Identifier (NPI) is 1154718104, issued on Apr 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Peter Giustini, M.D. located?
The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 744-3000. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Peter Giustini, M.D.'s license?
NPPES lists Washington license number MD61169776, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nicholas Peter Giustini, M.D. prescribe under Medicare Part D?
In 2024, Nicholas Peter Giustini, M.D. had 180 Medicare Part D claims for 31 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Nicholas Peter Giustini, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. 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.