NPPES file of Aug 9, 2026

Marion Tilearcio, PA-C

Physician Assistant · Boston, MA

Marion Tilearcio, PA-C is a physician assistant with a practice address in Boston, Massachusetts, and NPI 1659898518, issued on Aug 23, 2017. Check the license (Massachusetts PA6339, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659898518
Name
Marion Tilearcio
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA6339 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Boston Medical Center Place, Boston, MA 02118
Phone
(617) 414-5481
Enumerated
Aug 23, 2017
Record last updated
Feb 5, 2026
Medicare enrollment
Enrolled (PECOS I20180208000582); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2017
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Boston Medical Center Place

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maithri Ameresekere, MD, MSCPsychiatry Physician1457645475
  2. Ariana Andrade, LCSWClinical Social Worker1386190338
  3. Daniel Arnold, M.D.Internal Medicine Physician1679764773
  4. Rosa Auterio-WilliamsAddiction (Substance Use Disorder) Counselor1306294673
  5. Bridget Babich-Wydysh, PA-CPhysician Assistant1003383506
  6. Ashley Baker, NPPsychiatric/Mental Health Nurse Practitioner1417409194

Verify Marion Tilearcio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license PA6339
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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89% fewer Medicare Part D claims than the average physician assistant in 2024

91 Medicare Part D claims for 58 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Marion Tilearcio91
  2. Specialty average830

Most prescribed

  1. Ibuprofen27 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

  1. Cambridge Public Health CommissionCambridge, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marion Tilearcio among 4,713 physician assistant records in Massachusetts

Marion Tilearcio, PA-C is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 40% of them.

  • NPI issued2017 · 40% of these records are older, 55% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2017 · median 2019 among the 3,217 with a school on file
  • Record last updated2026 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,660 physician assistant records list a practice address in Boston

They are 1,660 of the 41,865 NPPES records with a practice address in Boston, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Susan Bowler, PA-CBoston, MA 021181295812048
  2. Jennifer Czarniak, PABoston, MA 021181528050259
  3. Sandy Falcon, PA-CBoston, MA 021181275619033
  4. Barbara Furgal, PA-CBoston, MA 021181568556454
  5. Eric Haas, PABoston, MA 021181144312174
  6. Cynthia Kiang, PA-CBoston, MA 021181811974116
  7. Nina Lev, P.A.Boston, MA 021181568421923
  8. Elizabeth Marks, PA-CBoston, MA 021181396761169

Common questions

What is Marion Tilearcio, PA-C's NPI number?

Marion Tilearcio, PA-C's National Provider Identifier (NPI) is 1659898518, issued on Aug 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Marion Tilearcio, PA-C located?

The NPPES record lists a practice address at 1 Boston Medical Center Place, Boston, MA, 02118. Phone: (617) 414-5481. Providers update this record themselves, so call before visiting.

How can I verify Marion Tilearcio, PA-C's license?

NPPES lists Massachusetts license number PA6339, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Marion Tilearcio, PA-C prescribe under Medicare Part D?

In 2024, Marion Tilearcio, PA-C had 91 Medicare Part D claims for 58 beneficiaries; the average among physician assistant prescribers was 830. 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.