NPPES file of Aug 9, 2026

Junia F. Osier, NP

Family Nurse Practitioner · Boston, MA

Junia F. Osier, NP is a family nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1265038558, issued on Dec 10, 2020. Check the license (Massachusetts RN10023463, 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
1265038558
Name
Junia F. Osier
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
RN10023463 MA
246243 AZ
Self-reported in NPPES; status is on the state search
Practice location
801 Massachusetts Ave, Suite 6A, Boston, MA 02118
Phone
(617) 414-5951
Enumerated
Dec 10, 2020
Record last updated
Jan 14, 2026
Fax
(617) 414-9201
Medicare enrollment
Enrolled (PECOS I20250915000032); accepts Medicare assignment
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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8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →

Also registered at 801 Massachusetts Ave, Suite 6A

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

  1. Danielle Bellavance, MDInternal Medicine Physician1164008173
  2. Grant Butler, NPGerontology Nurse Practitioner1437525102
  3. Caroline Johnson, MDInternal Medicine Physician1588240568
  4. Sabetta Singh, MDInternal Medicine Physician1982286514

Verify Junia F. Osier 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 RN10023463    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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23% more Medicare Part D claims than the average family nurse practitioner in 2024

1,602 Medicare Part D claims for 429 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. Junia Osier1,602
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium76 claims
  2. Amlodipine Besylate69 claims
  3. Levothyroxine Sodium62 claims
  4. Prednisone59 claims
  5. Lisinopril52 claims
  6. Losartan Potassium49 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: $416.62

17 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Junia Osier$416.62
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Arizona Community Physicians PCTucson, AZ
  2. Evans Medical Foundation IncBoston, MA

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

Junia F. Osier among 4,724 family nurse practitioner records in Massachusetts

Junia F. Osier, NP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 60% of them.

  • NPI issued2020 · 60% of these records are older, 33% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2020 · median 2019 among the 2,704 with a school on file
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

938 family nurse practitioner records list a practice address in Boston

They are 938 of the 41,865 NPPES records with a practice address in Boston, and 4,724 family nurse practitioner records in Massachusetts.

All 4,724 in Massachusetts → Every provider in Boston → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Marjorie Arvedon, FNPBoston, MA 021181376529842
  2. Ellen Bitz, NPBoston, MA 021181649254798
  3. Lois Doerr, NPBoston, MA 021181194784546
  4. Karen Friedman, MS RNC FNPBoston, MA 021181861421299
  5. Faye Huang, NPBoston, MA 021181366432353
  6. Terri Lacoursiere Zucchero, PHD, RN, FNP-BCBoston, MA 021181770565475
  7. Claire Murphy, NP-CBoston, MA 021181568447217
  8. Nancy Paull, NPBoston, MA 021181457466914

Common questions

What is Junia F. Osier, NP's NPI number?

Junia F. Osier, NP's National Provider Identifier (NPI) is 1265038558, issued on Dec 10, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Junia F. Osier, NP located?

The NPPES record lists a practice address at 801 Massachusetts Ave, Suite 6A, Boston, MA, 02118. Phone: (617) 414-5951. Providers update this record themselves, so call before visiting.

How can I verify Junia F. Osier, NP's license?

NPPES lists Massachusetts license number RN10023463, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Junia F. Osier, NP prescribe under Medicare Part D?

In 2024, Junia F. Osier, NP had 1,602 Medicare Part D claims for 429 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.