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REGINA PERRY SIU APRN
NPI 1770366072
Nurse Practitioner - Psychiatric/Mental Health in Wayland, MA

Active since August 18, 2023PECOS EnrolledAccepts Medicare Assignment
260 BOSTON POST RD STE 10, WAYLAND, MA 01778(978) 219-4040(978) 496-8386 Get Directions Write a Review

NPPES record last updated: March 12, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Mar 12, 2025, Feb 23, 2025, Aug 18, 2023 (3 updates tracked since 2023).

About Regina Perry Siu Aprn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

REGINA PERRY SIU APRN (NPI 1770366072) is an individual psychiatric/mental health provider in Wayland, Massachusetts, licensed in Massachusetts (RN2347564) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS, is affiliated with Heywood Hospital, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1770366072
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameREGINA PERRY SIUCredential: APRN
Location Address260 BOSTON POST RD STE 10Wayland, MA 01778-1888
Mailing Address260 Boston Post Rd Ste 10Wayland, MA 01778-1888 · (978) 219-4040 · Fax (978) 496-8386
Phone(978) 219-4040
Fax(978) 496-8386
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateAugust 18, 2023
Last NPPES UpdateMarch 12, 20253 updates tracked since enumeration
NPPES CertifiedMarch 12, 2025
✔ NPI 1770366072 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MA · RN2347564
260 BOSTON POST RD STE 10, Wayland, MA 01778
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Regina Perry Siu Aprn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416301734
PECOS Enrollment IDI20230920002661
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
216 services55 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
39 services39 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Heywood Hospital

Acute Care Hospitals · Gardner, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220095
Location242 Green StreetGardner, MA 01440 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01778 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SUDBURY RIVER THERAPY PLLC
Nurse Practitioner (Psychiatric/Mental Health)
260 BOSTON POST RD STE 10
WAYLAND, MA 01778
Middlesex County (978) 219-4040

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Regina Siu's NPI number?

The NPI number for Regina Siu is 1770366072. It was assigned to this individual provider in the NPPES registry on August 18, 2023.

Where is Regina Siu located?

Regina Siu practices at 260 Boston Post Rd Ste 10, Wayland, MA 01778. The listed phone number is (978) 219-4040.

What is Regina Siu's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Regina Siu enrolled in Medicare?

Yes. Regina Siu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Regina Siu accept?

Health plans from Harvard Pilgrim Health Care list Regina Siu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Regina Siu affiliated with any hospitals?

According to CMS data, Regina Siu is affiliated with Heywood Hospital.

When was this NPI record last updated?

The NPPES record for Regina Siu was last updated on March 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.