Margaret J. Layo, APRN FNP-BC
Family Nurse Practitioner · Watertown, MA
Margaret J. Layo, APRN FNP-BC is a family nurse practitioner with a practice address in Watertown, Massachusetts, and NPI 1184225401, issued on Nov 3, 2020. Check the license (Massachusetts RN2326899, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret J. Layo
- Credential
- APRN FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN2326899 MA
Self-reported in NPPES; status is on the state search - Practice location
- 480 Pleasant St Ste A300, Watertown, MA 02472
- Phone
- (617) 926-9000
- Enumerated
- Nov 3, 2020
- Record last updated
- Apr 8, 2025
- Fax
- (617) 926-7053
- Medicaid ID
- 110195702A MA
- Medicare enrollment
- Enrolled (PECOS I20230116000748); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Also registered at 480 Pleasant St Ste A300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marcine Logue, NPFamily Nurse Practitioner1174581029
- Barbara Spivak, MDInternal Medicine Physician1952301251
Verify Margaret J. Layo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2326899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average family nurse practitioner in 2024
495 Medicare Part D claims for 206 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 32 claims were for opioids.
Most prescribed
- Amlodipine Besylate36 claims
- Lisinopril34 claims
- Lorazepam32 claims
- Eliquis19 claims
- Losartan Potassium19 claims
- Atorvastatin Calcium18 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.
Industry payments in 2024: $410.58
17 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mount Auburn Professional Services IncLexington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret J. Layo among 4,724 family nurse practitioner records in Massachusetts
Margaret J. Layo, APRN FNP-BC 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 2020, is newer than 60% of them.
- NPI issued2020 · 60% of these records are older, 33% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2020 · median 2019 among the 2,704 with a school on file
- Record last updated2025 · 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).
30 family nurse practitioner records list a practice address in Watertown
They are 30 of the 873 NPPES records with a practice address in Watertown, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in Watertown → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Richard Arnold, FNP, BCWatertown, MA 024721659344646
- Neangkanika Chea, FNP-BCWatertown, MA 024721477007730
- Katherine De Kanter, NPWatertown, MA 024721114256674
- Carolyn Dobies, NPWatertown, MA 024721053384669
- Andrea Forde, NPWatertown, MA 024721760451025
- Lynne Henning, ARNPWatertown, MA 024721043319783
- Jancie Lawrence, NP-CWatertown, MA 024721760884407
- Marcine Logue, NPWatertown, MA 024721174581029
Common questions
What is Margaret J. Layo, APRN FNP-BC's NPI number?
Margaret J. Layo, APRN FNP-BC's National Provider Identifier (NPI) is 1184225401, issued on Nov 3, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Margaret J. Layo, APRN FNP-BC located?
The NPPES record lists a practice address at 480 Pleasant St Ste A300, Watertown, MA, 02472. Phone: (617) 926-9000. Providers update this record themselves, so call before visiting.
How can I verify Margaret J. Layo, APRN FNP-BC's license?
NPPES lists Massachusetts license number RN2326899, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret J. Layo, APRN FNP-BC prescribe under Medicare Part D?
In 2024, Margaret J. Layo, APRN FNP-BC had 495 Medicare Part D claims for 206 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.