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SHARON A HART SILVEIRA MD
NPI 1821252149
Obstetrics & Gynecology in Nashua, NH

Active since July 16, 2008PECOS EnrolledAccepts Medicare Assignment
2300 SOUTHWOOD DR, NASHUA, NH 03063(603) 577-4000(603) 640-1228 Get Directions Write a Review

NPPES record last updated: January 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 12, 2026, May 8, 2017 (2 updates tracked since 2017).

About Sharon A Hart Silveira Md NPPES

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

SHARON A HART SILVEIRA MD (NPI 1821252149) is an individual obstetrics & gynecology provider in Nashua, New Hampshire, licensed in New Hampshire (15702) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and is a graduate of Geisel School Of Medicine At Dartmouth (2008).

NPPES Registry Identity

NPI1821252149
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameSHARON A HART SILVEIRACredential: MD
Location Address2300 SOUTHWOOD DRNashua, NH 03063-1818
Mailing Address2300 Southwood DrNashua, NH 03063-1818 · (603) 577-4000
Phone(603) 577-4000
Fax(603) 640-1228
Sole ProprietorNo
Medical School CMSGeisel School Of Medicine At DartmouthGraduated 2008
Enumeration DateJuly 16, 2008
Last NPPES UpdateJanuary 12, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 12, 2026
✔ NPI 1821252149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in NH · 15702✔ Licensed in MA · L-237045
Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

2300 SOUTHWOOD DR, Nashua, NH 03063
Open in Google Maps ↗

Other Identifiers 1

Medicaid32001669NH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and more.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

Sharon A Hart Silveira Md 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 ID9537326970
PECOS Enrollment IDI20121022000007
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 4

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
33 services27 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
16 services16 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
13 services11 patients
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.
13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Mary Hitchcock Memorial Hospital

Acute Care Hospitals · Lebanon, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300003
Location1 Medical Center DriveLebanon, NH 03756 · Grafton County
Emergency services Birthing friendly

St Joseph Hospital

Acute Care Hospitals · Nashua, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number300011
Location172 Kinsley StNashua, NH 03060 · Hillsborough County
Emergency services Birthing friendly

Southern Nh Medical Center

Acute Care Hospitals · Nashua, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300020
Location8 Prospect StreetNashua, NH 03060 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03063 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
$132.09 typical visit price
range $57.75 – $174.26
Typical copayment $33.02 (range $14.43 – $43.56)
Most-billed visit code 99204
Established Patient
$71.85 typical visit price
range $18.70 – $142.15
Typical copayment $17.96 (range $4.67 – $35.53)
Most-billed visit code 99213
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 20

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

DR. KRISTIN OBERG BURDICK MD
Family Medicine
2300 SOUTHWOOD DR, FAMILY MEDICINE
NASHUA, NH 03063
Hillsborough County (603) 577-4440
SARAH HALE LEMENAGER PHARMD
Pharmacist (Ambulatory Care)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Hillsborough County (603) 650-4123
BONNIE BOUCHARD CNM
Advanced Practice Midwife
2300 SOUTHWOOD DR
NASHUA, NH 03063
Hillsborough County (603) 577-4000
MICHAEL WILLIAM BARB PA-C
Physician Assistant
2300 SOUTHWOOD DR
NASHUA, NH 03063
Hillsborough County (603) 577-4000
JULIA M STAUBLE APRN
Nurse Practitioner (Women's Health)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Hillsborough County (603) 577-4300
DONNA MARIE HORAN APRN
Nurse Practitioner (Family)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Hillsborough County (603) 577-4000
MS. JESSICA ANNE BACON CNM
Advanced Practice Midwife
2300 SOUTHWOOD DR, DARTMOUTH HITCHCOCK - OB/GYN
NASHUA, NH 03063
Hillsborough County (603) 577-3407
DR. WALTER MATTHEW RYAN III DO
Internal Medicine (Allergy & Immunology)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Hillsborough County (603) 577-4000

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 Sharon Hart Silveira's NPI number?

The NPI number for Sharon Hart Silveira is 1821252149. It was assigned to this individual provider in the NPPES registry on July 16, 2008.

Where is Sharon Hart Silveira located?

Sharon Hart Silveira practices at 2300 Southwood Dr, Nashua, NH 03063. The listed phone number is (603) 577-4000.

What is Sharon Hart Silveira's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Sharon Hart Silveira enrolled in Medicare?

Yes. Sharon Hart Silveira 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 Sharon Hart Silveira accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list Sharon Hart Silveira 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 Sharon Hart Silveira affiliated with any hospitals?

According to CMS data, Sharon Hart Silveira is affiliated with Mary Hitchcock Memorial Hospital, St Joseph Hospital and Southern Nh Medical Center.

When was this NPI record last updated?

The NPPES record for Sharon Hart Silveira was last updated on January 12, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.