NPPES file of Aug 9, 2026

Sarah O'Brien, FNP

Nurse Practitioner · Worcester, MA

Sarah O'Brien, FNP is a nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1558694760, issued on Sep 8, 2009. Check the license (Massachusetts RN285156, 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
1558694760
Name
Sarah O'Brien
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
RN285156 MA
81518 WV
Self-reported in NPPES; status is on the state search
Practice location
119 Belmont St, Worcester, MA 01605
Phone
(508) 334-6206
Enumerated
Sep 8, 2009
Record last updated
Nov 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(508) 334-6083
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →

Also registered at 119 Belmont St

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

  1. Elisa Abdulhayoglu, MDNeonatal-Perinatal Medicine Physician1053346007
  2. Edward Adams, MDInternal Medicine Physician1881157444
  3. Redwan Ahmed, MDFamily Medicine Physician1356830103
  4. Hashim Al-Ani, MDInternal Medicine Physician1235863358
  5. Muhammad Albanna, MDInternal Medicine Physician1194404681
  6. Yury Aleksandrovich, MDInternal Medicine Physician1912469388

Verify Sarah O'Brien 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 RN285156    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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Industry payments in 2024: $199.95

1 payment: food and beverage; the largest payer was Atricure, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sarah O'Brien$199.95
  2. Specialty average$791.64

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

Sarah O'Brien among 3,480 nurse practitioner records in Massachusetts

Sarah O'Brien, FNP is one of 3,480 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 2009, is newer than 33% of them.

  • NPI issued2009 · 33% of these records are older, 64% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2020 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

499 nurse practitioner records list a practice address in Worcester

They are 499 of the 13,166 NPPES records with a practice address in Worcester, and 3,480 nurse practitioner records in Massachusetts.

All 3,480 in Massachusetts → Every provider in Worcester → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Josephine Banigo, NPWorcester, MA 016051780658021
  2. Jane Baron, NPWorcester, MA 016051992779243
  3. Alice Bonner, GNPWorcester, MA 016051366427551
  4. Cindy Brown, NPWorcester, MA 016051992779227
  5. Mary Burke, NPWorcestor, MA 016051255311270
  6. Anne Crowell, GNPWorcester, MA 016051598744559
  7. Susanne Duszlak, NPWorcester, MA 016051811961477
  8. Marylu Garrow, NPWorcester, MA 016051316918295

Common questions

What is Sarah O'Brien, FNP's NPI number?

Sarah O'Brien, FNP's National Provider Identifier (NPI) is 1558694760, issued on Sep 8, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Sarah O'Brien, FNP located?

The NPPES record lists a practice address at 119 Belmont St, Worcester, MA, 01605. Phone: (508) 334-6206. Providers update this record themselves, so call before visiting.

How can I verify Sarah O'Brien, FNP's license?

NPPES lists Massachusetts license number RN285156, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.