Ryan Sullivan Tamargo, NP
Gerontology Nurse Practitioner · Boston, MA
Ryan Sullivan Tamargo, NP is a gerontology nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1619425055, issued on Sep 14, 2016. Check the license (Massachusetts RN2283429, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan Sullivan Tamargo
- Credential
- NP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- RN2283429 MA
Self-reported in NPPES; status is on the state search - Practice location
- 450 Brookline Ave, Boston, MA 02215
- Phone
- (617) 632-3800
- Enumerated
- Sep 14, 2016
- Record last updated
- Oct 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (617) 632-1930
- 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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Verify Ryan Sullivan Tamargo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2283429Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
607 Medicare Part D claims for 166 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Letrozole238 claims
- Anastrozole41 claims
- Tamoxifen Citrate32 claims
- Verzenio30 claims
- Eliquis29 claims
- Gabapentin28 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: $117.70
1 payment: food and beverage; the largest payer was Daiichi Sankyo Inc. 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.
Ryan Sullivan Tamargo among 379 gerontology nurse practitioner records in Massachusetts
Ryan Sullivan Tamargo, NP 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 2016, is newer than 49% of them.
- NPI issued2016 · 49% of these records are older, 45% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2018 · 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
- Theresa NguyenBoston, MA 022151356994347
- Chantal PaulBoston, MA 022151922438126
- Gisela Perkins, NPBoston, MA 022151992766216
Common questions
What is Ryan Sullivan Tamargo, NP's NPI number?
Ryan Sullivan Tamargo, NP's National Provider Identifier (NPI) is 1619425055, issued on Sep 14, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Sullivan Tamargo, NP located?
The NPPES record lists a practice address at 450 Brookline Ave, Boston, MA, 02215. Phone: (617) 632-3800. Providers update this record themselves, so call before visiting.
How can I verify Ryan Sullivan Tamargo, NP's license?
NPPES lists Massachusetts license number RN2283429, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Ryan Sullivan Tamargo, NP prescribe under Medicare Part D?
In 2024, Ryan Sullivan Tamargo, NP had 607 Medicare Part D claims for 166 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.