Joanna Ly, NP
Family Nurse Practitioner · Boston, MA
Joanna Ly, NP is a family nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1851868111, issued on Oct 25, 2018. Check the license (Massachusetts RN254812, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joanna Ly
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN254812 MA
Self-reported in NPPES; status is on the state search - Practice location
- 11 Melnea Cass Blvd, Boston, MA 02119
- Phone
- (617) 414-2080
- Enumerated
- Oct 25, 2018
- Record last updated
- Jan 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (617) 414-2090
- Medicare enrollment
- Enrolled (PECOS I20190207002299); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Also registered at 11 Melnea Cass Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Justin Alves, FNP-BCFamily Nurse Practitioner1669167185
- Marielle Baldwin, MDFamily Medicine Physician1396164877
- Rebecca BilodeauClinical Social Worker1164901146
- Courtney Cameron, PHARMDAmbulatory Care Pharmacist1245990290
- Patrick Couchot, MDFamily Medicine Physician1730649872
- Katherine Gergen Barnett, MDFamily Medicine Physician1023209129
Verify Joanna Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN254812Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family nurse practitioner in 2024
102 Medicare Part D claims for 74 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of 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.
Bills Medicare through one group practice
- Carecentral Urgent Care Medical Group PCBridgewater, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joanna Ly among 4,724 family nurse practitioner records in Massachusetts
Joanna Ly, NP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 49% of them.
- NPI issued2018 · 49% of these records are older, 46% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2018 · median 2019 among the 2,704 with a school on file
- Record last updated2019 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
938 family nurse practitioner records list a practice address in Boston
They are 938 of the 41,865 NPPES records with a practice address in Boston, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in Boston → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Justin Alves, FNP-BCBoston, MA 021191669167185
- Madiop DioufRoxbury, MA 021191578109856
- Jonathan Foster-Moore, FNP-BCRoxbury, MA 021191790394096
- Corrina Kent, FNPBoston, MA 021191659978146
- Yessica Labour Aguasvivas, CNPRoxbury, MA 021191427738533
- Emily McKeon, CNPBoston, MA 021191194459826
- Josie Ouellette, NPBoston, MA 021191063124212
- Jennifer Proietti, NPBoston, MA 021191184925026
Common questions
What is Joanna Ly, NP's NPI number?
Joanna Ly, NP's National Provider Identifier (NPI) is 1851868111, issued on Oct 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Joanna Ly, NP located?
The NPPES record lists a practice address at 11 Melnea Cass Blvd, Boston, MA, 02119. Phone: (617) 414-2080. Providers update this record themselves, so call before visiting.
How can I verify Joanna Ly, NP's license?
NPPES lists Massachusetts license number RN254812, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Joanna Ly, NP prescribe under Medicare Part D?
In 2024, Joanna Ly, NP had 102 Medicare Part D claims for 74 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.