Roula Johnstone, ACNP-BC
Acute Care Nurse Practitioner · N Chelmsford, MA
Roula Johnstone, ACNP-BC is an acute care nurse practitioner with a practice address in N Chelmsford, Massachusetts, and NPI 1598907271, issued on Mar 27, 2009. Check the license (Massachusetts RN235018, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Roula Johnstone
- Credential
- ACNP-BC
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- RN235018 MA
Self-reported in NPPES; status is on the state search - Practice location
- 20 Research PL, N Chelmsford, MA 01863
- Phone
- (978) 454-0706
- Enumerated
- Mar 27, 2009
- Entity
- Type 1 · individual
Also registered at 20 Research PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Judith Bain, NPFamily Nurse Practitioner1609952035
- Michael Bertos, M.D.Internal Medicine Physician1043245145
- Louis Bresnick, M.D.Internal Medicine Physician1205861390
- Jayme Cerullo, NPFamily Nurse Practitioner1689711871
- Kathleen Cullen-Lutter, RN/NMAdvanced Practice Midwife1588096267
- Minerva Domingo, MDSpecialist1639170210
Verify Roula Johnstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN235018Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
50% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
311 Medicare Part D claims for 213 beneficiaries, against an average of 623 among the 12,256 providers of this specialty who prescribed in Part D. 210 claims were for opioids.
Most prescribed
- Oxycodone Hcl161 claims
- Tramadol Hcl42 claims
- Ondansetron Hcl27 claims
- Gabapentin16 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.
One hospital or facility affiliation
- Orthopaedic Surgical Associates OF Lowell, P.C.North Chelmsford, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
1 acute care nurse practitioner records list a N Chelmsford practice address
They are 1 of the 66 NPPES records with a N Chelmsford practice address, and 560 acute care nurse practitioner records in Massachusetts.
Other acute care nurse practitioner records in Massachusetts
- Allison AditaysWorcester, MA1326602442
- Daniela Aguilera Bremer, MDBoston, MA1780123083
- Tina AlibozekPittsfield, MA1023517380
- Christopher AllenBoston, MA1174139976
- Heidi Almodovar, PNPBoston, MA1922324250
- Jennifer Aman, NPBoston, MA1053966234
- Kristina Amaral, CNPFall River, MA1881164184
- Mary Amatangelo, NPBoston, MA1114191442
- Billy Anabaka, AGACNP-BCWorcester, MA1699176727
- Jaines Andrades, NPSpringfield, MA1649898065
Common questions
What is Roula Johnstone, ACNP-BC's NPI number?
Roula Johnstone, ACNP-BC's National Provider Identifier (NPI) is 1598907271, issued on Mar 27, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Roula Johnstone, ACNP-BC located?
The NPPES record lists a practice address at 20 Research PL, N Chelmsford, MA, 01863. Phone: (978) 454-0706. Providers update this record themselves, so call before visiting.
How can I verify Roula Johnstone, ACNP-BC's license?
NPPES lists Massachusetts license number RN235018, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Roula Johnstone, ACNP-BC prescribe under Medicare Part D?
In 2024, Roula Johnstone, ACNP-BC had 311 Medicare Part D claims for 213 beneficiaries; the average among acute care nurse practitioner prescribers was 623. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.