NPPES file of Aug 9, 2026

Diana Lopez O'Hare

Registered Nurse · Merrimac, MA

Diana Lopez O'Hare is a registered nurse with a practice address in Merrimac, Massachusetts, and NPI 1164101309, issued on Jul 14, 2023. Check the license (Massachusetts RN2278117, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1164101309
Name
Diana Lopez O'Hare
Primary taxonomy
Registered Nurse 163W00000X
License number
RN2278117 MA
Self-reported in NPPES; status is on the state search
Practice location
28 Spring Hill RD, Merrimac, MA 01860
Phone
(508) 344-3979
Enumerated
Jul 14, 2023
Record last updated
Jul 14, 2023
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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Verify Diana Lopez O'Hare 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 RN2278117    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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4 registered nurse records list a practice address in Merrimac

They are 4 of the 46 NPPES records with a practice address in Merrimac, and 4,985 registered nurse records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4 in Merrimac → All 4,985 in Massachusetts → Every provider in Merrimac →

Other registered nurse records in Massachusetts

  1. Sabrina AbanoorBoston, MA1215818745
  2. Jennifer Abazorius, RNFitchburg, MA1467294462
  3. Kobina Abban-Saah, RNWest Roxbury, MA1770873309
  4. Adanesh AbbayCambridge, MA1639993652
  5. Naheelah Abdullah, RNQuincy, MA1124848015
  6. Mutawakilu Abdulsalam, RNWestford, MA1598249740
  7. Andrea Aberdale-SmithSpringfield, MA1871463885
  8. Brenda Abongwa, NURSEWhitinsville, MA1144951815
  9. Udo Abraham, RNBrockton, MA1265170120
  10. Nadzeya AbramovichAshland, MA1790673911

Common questions

What is Diana Lopez O'Hare's NPI number?

Diana Lopez O'Hare's National Provider Identifier (NPI) is 1164101309, issued on Jul 14, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Diana Lopez O'Hare located?

The NPPES record lists a practice address at 28 Spring Hill RD, Merrimac, MA, 01860. Phone: (508) 344-3979. Providers update this record themselves, so call before visiting.

How can I verify Diana Lopez O'Hare's license?

NPPES lists Massachusetts license number RN2278117, 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. 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.