NPPES file of Aug 9, 2026

Nina Leona Diggs, NP

Adult Health Nurse Practitioner · Brookline, MA

Nina Leona Diggs, NP is an adult health nurse practitioner with a practice address in Brookline, Massachusetts, and NPI 1124355649, issued on Nov 4, 2009. Check the license (Massachusetts RN252989, 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
1124355649
Name
Nina Leona Diggs
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
RN252989 MA
Self-reported in NPPES; status is on the state search
Practice location
44 Washington St Ste 104A, Brookline, MA 02445
Phone
(617) 505-6120
Enumerated
Nov 4, 2009
Record last updated
Oct 27, 2022
Medicare enrollment
Enrolled (PECOS I20260427002225); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest adult health nurse practitioner records → All 1,465 in Massachusetts → Look up another NPI →

Verify Nina Leona Diggs 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 RN252989    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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Nina Leona Diggs among 1,465 adult health nurse practitioner records in Massachusetts

Nina Leona Diggs, NP is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% 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 2009, is newer than 50% of them.

  • NPI issued2009 · 50% of these records are older, 44% newer
  • In a Medicare fileNo · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2009 · median 2010 among the 634 with a school on file
  • Record last updated2022 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Massachusetts

There are 1,465 adult health nurse practitioner records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,465 in Massachusetts → Every provider in Brookline → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Mary Cassidy, N.P.Brookline, MA 024451568438729
  2. Linda Dumas, PHD NPCBrookline, MA 024451609980374
  3. Moka Yoo-JeongBrookline, MA 024461134707888
  4. Kerry Assarian, NPWaltham, MA 024511457499923
  5. Karin Broden, NPWaltham, MA 024511134141427
  6. Margaret Carey, ANPWaltham, MA 024511881746972
  7. Kerry Kilroy, APRN-BCWaltham, MA 024511548327638
  8. Hadassah Kneppel, NPWaltham, MA 024511639285976

Common questions

What is Nina Leona Diggs, NP's NPI number?

Nina Leona Diggs, NP's National Provider Identifier (NPI) is 1124355649, issued on Nov 4, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Nina Leona Diggs, NP located?

The NPPES record lists a practice address at 44 Washington St Ste 104A, Brookline, MA, 02445. Phone: (617) 505-6120. Providers update this record themselves, so call before visiting.

How can I verify Nina Leona Diggs, NP's license?

NPPES lists Massachusetts license number RN252989, 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.