Priscilla Merriam
Hematology & Oncology Physician · Boston, MA
Priscilla Merriam is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1407072838, issued on Apr 17, 2007. Check the license (Massachusetts 254182, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Priscilla Merriam
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 254182 MA
MD13201 RI
Self-reported in NPPES; status is on the state search - Practice location
- 450 Brookline Ave, Boston, MA 02215
- Phone
- (617) 632-5204
- Enumerated
- Apr 17, 2007
- Record last updated
- Dec 9, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141229000326); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Also registered at 450 Brookline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Abel, MDHematology & Oncology Physician1285611954
- Lara Abousamra, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1851183404
- Karley Adams, PAPhysician Assistant1578261764
- Lauren Adams, PA-CPhysician Assistant1902763469
- Ana Aguilar-Bonilla, M.D.Pediatric Hematology & Oncology Physician1023319761
- Andrew Aguirre, MD, PHDMedical Oncology Physician1609071208
Verify Priscilla Merriam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 254182Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
89 Medicare Part D claims for 37 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Imatinib Mesylate16 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 MIPS final score for 2023 (Medicare payment program): 86.3 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: $106.02
1 payment: food and beverage; the largest payer was Aadi Bioscience, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Bills Medicare through one group practice
- Dana-Farber Cancer Institute, Inc.Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Priscilla Merriam among 461 hematology & oncology physician records in Massachusetts
Priscilla Merriam is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 39% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2006 · median 2004 among the 303 with a school on file
- Record last updated2014 · 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 Massachusetts 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 Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
All 461 in Massachusetts → Every provider in Boston → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Gregory Abel, MDBoston, MA 022151285611954
- Nancy Andrea, M.D.Boston, MA 022151033193719
- David Avigan, M.D.Boston, MA 022151952349243
- David Barbie, MDBoston, MA 022151164401626
- Christopher Lee Carpenter, M.D.Boston, MA 022151083651798
- Bimalangshu Dey, MDBoston, MA 022151679563845
- Robb Friedman, M.D.Boston, MA 022151669451514
- Leena Gandhi, MD PHDBoston, MA 022151841275906
Common questions
What is Priscilla Merriam's NPI number?
Priscilla Merriam's National Provider Identifier (NPI) is 1407072838, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Priscilla Merriam located?
The NPPES record lists a practice address at 450 Brookline Ave, Boston, MA, 02215. Phone: (617) 632-5204. Providers update this record themselves, so call before visiting.
How can I verify Priscilla Merriam's license?
NPPES lists Massachusetts license number 254182, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Priscilla Merriam prescribe under Medicare Part D?
In 2024, Priscilla Merriam had 89 Medicare Part D claims for 37 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Priscilla Merriam's MIPS final score?
The 2023 MIPS final score is 86.3 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.