Theresa Nguyen
Gerontology Nurse Practitioner · Boston, MA
Theresa Nguyen is a gerontology nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1356994347, issued on Jul 19, 2019. Check the license (Massachusetts RN2286457, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Theresa Nguyen
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- RN2286457 MA
Self-reported in NPPES; status is on the state search - Practice location
- 450 Brookline Ave, Boston, MA 02215
- Phone
- (617) 632-1906
- Enumerated
- Jul 19, 2019
- Record last updated
- Dec 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 379 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.
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- Ana Aguilar-Bonilla, M.D.Pediatric Hematology & Oncology Physician1023319761
- Andrew Aguirre, MD, PHDMedical Oncology Physician1609071208
Verify Theresa Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2286457Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
1,026 Medicare Part D claims for 119 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Imatinib Mesylate74 claims
- Acyclovir65 claims
- Valacyclovir64 claims
- Jakafi59 claims
- Bosulif55 claims
- Sprycel35 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.
Industry payments in 2024: $123.88
1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 3,903 providers of this specialty with any payment received $742.05 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.
Theresa Nguyen among 379 gerontology nurse practitioner records in Massachusetts
Theresa Nguyen is one of 379 gerontology nurse practitioner records with a practice address in Massachusetts. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 66% of them.
- NPI issued2019 · 66% of these records are older, 26% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2019 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Massachusetts
There are 379 gerontology nurse practitioner records in Massachusetts.
All 379 in Massachusetts → Every provider in Boston → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Brittany Corliss, APRNBoston, MA 022151497411474
- Thao Costanza, AGPCNPBoston, MA 022151114433323
- Ruth Ducrepin, AGNPBoston, MA 022151649861535
- Nadine Linendoll, NPBoston, MA 022151841225364
- Katherine Lyman, N.P.Boston, MA 022151851309108
- Chantal PaulBoston, MA 022151922438126
- Gisela Perkins, NPBoston, MA 022151992766216
- Ryan Tamargo, NPBoston, MA 022151619425055
Common questions
What is Theresa Nguyen's NPI number?
Theresa Nguyen's National Provider Identifier (NPI) is 1356994347, issued on Jul 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Nguyen located?
The NPPES record lists a practice address at 450 Brookline Ave, Boston, MA, 02215. Phone: (617) 632-1906. Providers update this record themselves, so call before visiting.
How can I verify Theresa Nguyen's license?
NPPES lists Massachusetts license number RN2286457, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Theresa Nguyen prescribe under Medicare Part D?
In 2024, Theresa Nguyen had 1,026 Medicare Part D claims for 119 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.