Marissa R. Hamrick, M.D.
Family Medicine Physician · Boston, MA
Marissa R. Hamrick, M.D. is a family medicine physician with a practice address in Boston, Massachusetts, and NPI 1386905685, issued on Jun 4, 2012. Check the license (Massachusetts 261862, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marissa R. Hamrick
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 261862 MA
Self-reported in NPPES; status is on the state search - Practice location
- 850 Harrison Ave, Boston, MA 02118
- Phone
- (617) 414-2080
- Enumerated
- Jun 4, 2012
- Record last updated
- Jul 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (617) 414-2090
- Medicare enrollment
- Enrolled (PECOS I20150922003338); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Also registered at 850 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- William Adams, MDPediatrics Physician1255314696
- Soukaina Adolphe, M.D.Pediatrics Physician1760579155
Verify Marissa R. Hamrick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 261862Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average family medicine physician in 2024
1,988 Medicare Part D claims for 142 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 33 claims were for opioids.
Most prescribed
- Atorvastatin Calcium142 claims
- Lisinopril94 claims
- Losartan Potassium74 claims
- Amlodipine Besylate72 claims
- Metoprolol Succinate67 claims
- Hydrochlorothiazide60 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.
Bills Medicare through one group practice
- Uphams Corner Health Committee IncDorchester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa R. Hamrick among 2,265 family medicine physician records in Massachusetts
Marissa R. Hamrick, M.D. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 65% of them.
- NPI issued2012 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2012 · median 2006 among the 1,529 with a school on file
- Record last updated2015 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Massachusetts
There are 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Boston → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mari Bentley, M.D.Boston, MA 021181043299027
- Larry Culpepper, M.D.Boston, MA 021181225001076
- Jon Fuller, MDBoston, MA 021181952387946
- Thomas Hines, M.D.Boston, MA 021181235103219
- Brian Jack, M.D.Boston, MA 021181053385120
- Anita Kostecki, M.D.Boston, MA 021181295710119
- Nidhi Lal, MDBoston, MA 021181114990652
- Adebayo Lawal, M.D.Boston, MA 021181578537569
Common questions
What is Marissa R. Hamrick, M.D.'s NPI number?
Marissa R. Hamrick, M.D.'s National Provider Identifier (NPI) is 1386905685, issued on Jun 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Marissa R. Hamrick, M.D. located?
The NPPES record lists a practice address at 850 Harrison Ave, Boston, MA, 02118. Phone: (617) 414-2080. Providers update this record themselves, so call before visiting.
How can I verify Marissa R. Hamrick, M.D.'s license?
NPPES lists Massachusetts license number 261862, 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 Marissa R. Hamrick, M.D. prescribe under Medicare Part D?
In 2024, Marissa R. Hamrick, M.D. had 1,988 Medicare Part D claims for 142 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.