NPPES file of Aug 9, 2026

Katherine Ann Maher, RN

Addiction (Substance Use Disorder) Registered Nurse · Cambridge, MA

Katherine Ann Maher, RN is an addiction (substance use disorder) registered nurse with a practice address in Cambridge, Massachusetts, and NPI 1265150023, issued on Aug 18, 2022. Check the license (Massachusetts RN253611, 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
1265150023
Name
Katherine Ann Maher
Credential
RN
Primary taxonomy
Addiction (Substance Use Disorder) Registered Nurse 163WA0400X
License number
RN253611 MA
Self-reported in NPPES; status is on the state search
Practice location
54 Washburn Ave, Cambridge, MA 02140
Phone
(617) 661-5700
Enumerated
Aug 18, 2022
Record last updated
Aug 18, 2022
Fax
(617) 868-4840
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.
Download card Updates feed

8 nearest addiction (substance use disorder) registered nurse records → All 140 in Massachusetts → Look up another NPI →

Also registered at 54 Washburn Ave

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

  1. Alia AlbeerMental Health Counselor1225554447
  2. Chloe DelougheryAddiction (Substance Use Disorder) Counselor1457965907
  3. Michelle GoldbergAddiction (Substance Use Disorder) Counselor1275181208
  4. Johnathan LarkeySocial Worker1831079995
  5. Courtney LimonSocial Worker1275201436
  6. Qian LiuSocial Worker1407632649

Verify Katherine Ann Maher 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 RN253611    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Katherine Ann Maher among 140 addiction (substance use disorder) registered nurse records in Massachusetts

Katherine Ann Maher, RN is one of 140 addiction (substance use disorder) registered nurse records with a practice address in Massachusetts. 1% 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 2022, is newer than 43% of them.

  • NPI issued2022 · 43% of these records are older, 52% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2022 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WA0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction (Substance Use Disorder) Registered Nurse providers in Massachusetts

There are 140 addiction (substance use disorder) registered nurse records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 140 in Massachusetts → Every provider in Cambridge → Addiction (Substance Use Disorder) Registered Nurse nationwide →

The 8 addiction (substance use disorder) registered nurse records with the nearest ZIP codes

  1. Lolita Roland, RNSomerville, MA 021431043471451
  2. Diana Artiga, RNBrighton, MA 021351649631904
  3. Jennifer Deangelis, RNBrighton, MA 021351043734510
  4. Lourdes Jean-LouisBrighton, MA 021351417843913
  5. Kathleen Murray, RNBrighton, MA 021351518279041
  6. Stephanie Speed, RNBrighton, MA 021351720537830
  7. Saliha Abdal-Khabir, REGISTERED NURSEJamaica Plain, MA 021301154986784
  8. Jigssa BejigaBoston, MA 021301073452488

Common questions

What is Katherine Ann Maher, RN's NPI number?

Katherine Ann Maher, RN's National Provider Identifier (NPI) is 1265150023, issued on Aug 18, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Ann Maher, RN located?

The NPPES record lists a practice address at 54 Washburn Ave, Cambridge, MA, 02140. Phone: (617) 661-5700. Providers update this record themselves, so call before visiting.

How can I verify Katherine Ann Maher, RN's license?

NPPES lists Massachusetts license number RN253611, 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.