NPPES file of Aug 9, 2026

Elaina M. Guy, RN

Ambulatory Care Registered Nurse · Somerville, MA

Elaina M. Guy, RN is an ambulatory care registered nurse with a practice address in Somerville, Massachusetts, and NPI 1770885402, issued on Dec 1, 2010. Check the license (Massachusetts 200900, 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
1770885402
Name
Elaina M. Guy
Credential
RN
Primary taxonomy
Ambulatory Care Registered Nurse 163WP2201X
License number
200900 MA
Self-reported in NPPES; status is on the state search
Practice location
236 Highland Ave, Somerville, MA 02143
Phone
(617) 591-6300
Enumerated
Dec 1, 2010
Record last updated
Dec 1, 2010 (not updated in 16 years: call before relying on the address or phone)
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 ambulatory care registered nurse records → All 164 in Massachusetts → Look up another NPI →

Also registered at 236 Highland Ave

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

  1. Richard Balaban, M.D.Internal Medicine Physician1780793281
  2. Madeline Barott, MDOphthalmology Physician1508930587
  3. Jon Boyd, M.D., PH.D.Psychiatry Physician1932140258
  4. Erica Childs, MDInternal Medicine Physician1952579997
  5. Pieter Cohen, M.D.Internal Medicine Physician1366482804
  6. Matthew Corey, MDGeriatric Medicine (Internal Medicine) Physician1518266741

Verify Elaina M. Guy 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 200900    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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Elaina M. Guy among 164 ambulatory care registered nurse records in Massachusetts

Elaina M. Guy, RN is one of 164 ambulatory care registered nurse records with a practice address in Massachusetts. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 21% of them.

  • NPI issued2010 · 21% of these records are older, 70% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 2% of these records are
  • Record last updated2010 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WP2201X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ambulatory Care Registered Nurse providers in Massachusetts

There are 164 ambulatory care registered nurse records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 164 in Massachusetts → Every provider in Somerville → Ambulatory Care Registered Nurse nationwide →

The 8 ambulatory care registered nurse records with the nearest ZIP codes

  1. Sheryl Cliggott, RNSomerville, MA 021431811295371
  2. Rosamaria Derany, RNSomerville, MA 021431396289856
  3. Tiffany FarrellSomerville, MA 021431295428787
  4. Daphney Jean, LPNSomerville, MA 021431396161097
  5. Melissa Joseph, RNSomerville, MA 021431508117359
  6. Medina Kusuran, RNSomerville, MA 021431811242662
  7. Joan Maccormack, RNSomerville, MA 021431396047205
  8. Fiona McCaughan, RN, MSSomerville, MA 021431609208602

Common questions

What is Elaina M. Guy, RN's NPI number?

Elaina M. Guy, RN's National Provider Identifier (NPI) is 1770885402, issued on Dec 1, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Elaina M. Guy, RN located?

The NPPES record lists a practice address at 236 Highland Ave, Somerville, MA, 02143. Phone: (617) 591-6300. Providers update this record themselves, so call before visiting.

How can I verify Elaina M. Guy, RN's license?

NPPES lists Massachusetts license number 200900, 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.