Regina Perry Siu, APRN
Psychiatric/Mental Health Nurse Practitioner · Wayland, MA
Regina Perry Siu, APRN is a psychiatric/mental health nurse practitioner with a practice address in Wayland, Massachusetts, and NPI 1770366072, issued on Aug 18, 2023. Check the license (Massachusetts RN2347564, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Regina Perry Siu
- Credential
- APRN
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RN2347564 MA
Self-reported in NPPES; status is on the state search - Practice location
- 260 Boston Post RD Ste 10, Wayland, MA 01778
- Phone
- (978) 219-4040
- Enumerated
- Aug 18, 2023
- Record last updated
- Mar 12, 2025
- Fax
- (978) 496-8386
- Medicare enrollment
- Enrolled (PECOS I20230920002661); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Verify Regina Perry Siu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2347564Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
2,470 Medicare Part D claims for 145 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Lamotrigine178 claims
- Risperidone120 claims
- Clozapine113 claims
- Clonazepam111 claims
- Lorazepam95 claims
- Benztropine Mesylate94 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
- Clinical And Support Options, IncGardner, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Regina Perry Siu among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Regina Perry Siu, APRN is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 67% of them.
- NPI issued2023 · 67% of these records are older, 24% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2023 · median 2021 among the 1,309 with a school on file
- Record last updated2025 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Massachusetts
There are 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Wayland → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Isabella Bauters, PMHNP-BCSudbury, MA 017761275919649
- Heather Connors, RN, MSN, PMHNP-BCSudbury, MA 017761255037594
- Andrew Granese, PMHNP-BCSudbury, MA 017761164920872
- Michele Graney, NURSE PRACTITIONERSudbury, MA 017761689713364
- Nora Roscoe, PMHNP-BC, APRN, MSNSudbury, MA 017761003641804
- Jeremy Santacroce, RN/NP, LICSWSudbury, MA 017761215152632
- Rosalind Gendreau, RNSouthborough, MA 017721700322674
- Sarah GiffordSouthborough, MA 017721407296106
Common questions
What is Regina Perry Siu, APRN's NPI number?
Regina Perry Siu, APRN's National Provider Identifier (NPI) is 1770366072, issued on Aug 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Regina Perry Siu, APRN located?
The NPPES record lists a practice address at 260 Boston Post RD Ste 10, Wayland, MA, 01778. Phone: (978) 219-4040. Providers update this record themselves, so call before visiting.
How can I verify Regina Perry Siu, APRN's license?
NPPES lists Massachusetts license number RN2347564, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Regina Perry Siu, APRN prescribe under Medicare Part D?
In 2024, Regina Perry Siu, APRN had 2,470 Medicare Part D claims for 145 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.