Anastasia Tsakirellis, NP
Acute Care Nurse Practitioner · Boston, MA
Anastasia Tsakirellis, NP is an acute care nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1437734019, issued on Mar 15, 2021. Check the license (Massachusetts RN2328328, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Anastasia Tsakirellis
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- RN2328328 MA
Self-reported in NPPES; status is on the state search - Practice location
- 330 Brookline Ave, Boston, MA 02215
- Phone
- (617) 667-3394
- Enumerated
- Mar 15, 2021
- Record last updated
- Mar 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 598 in Massachusetts → Look up another NPI →
Also registered at 330 Brookline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Anastasia Tsakirellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2328328Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
77 Medicare Part D claims for 29 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Acyclovir22 claims
- Sulfamethoxazole-Trimethoprim12 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.
Anastasia Tsakirellis among 598 acute care nurse practitioner records in Massachusetts
Anastasia Tsakirellis, NP is one of 598 acute care nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 75% of them.
- NPI issued2021 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2021 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Massachusetts
There are 598 acute care nurse practitioner records in Massachusetts.
All 598 in Massachusetts → Every provider in Boston → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Marie Bosak, NPBoston, MA 022151770781775
- Emily DerosierBoston, MA 022151629303888
- Alison Engelman, NPBoston, MA 022151477785046
- Tina Flaherty, N.P.Boston, MA 022151437366101
- Karen Garden, CRNPBoston, MA 022151073755393
- Jason Glass, ACNP-BCBoston, MA 022151891945051
- Kimberly Guibone, ACNPBoston, MA 022151427279330
- Deirdre Keogh, NPBoston, MA 022151548446016
Common questions
What is Anastasia Tsakirellis, NP's NPI number?
Anastasia Tsakirellis, NP's National Provider Identifier (NPI) is 1437734019, issued on Mar 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Anastasia Tsakirellis, NP located?
The NPPES record lists a practice address at 330 Brookline Ave, Boston, MA, 02215. Phone: (617) 667-3394. Providers update this record themselves, so call before visiting.
How can I verify Anastasia Tsakirellis, NP's license?
NPPES lists Massachusetts license number RN2328328, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Anastasia Tsakirellis, NP prescribe under Medicare Part D?
In 2024, Anastasia Tsakirellis, NP had 77 Medicare Part D claims for 29 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.