NPPES file of Aug 9, 2026

Theresa Louise Guanci, DMD

Dentist · Mashpee, MA

Theresa Louise Guanci, DMD is a dentist with a practice address in Mashpee, Massachusetts, and NPI 1487067799, issued on Jun 4, 2014. Check the license (Massachusetts DN1856534, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487067799
Name
Theresa Louise Guanci
Credential
DMD
Primary taxonomy
Dentist 122300000X
License number
DN1856534 MA
Self-reported in NPPES; status is on the state search
Practice location
107 Commercial St, Mashpee, MA 02649
Phone
(508) 539-6050
Enumerated
Jun 4, 2014
Record last updated
Jun 4, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(508) 477-7028
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 107 Commercial St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Riley Ashe, LCSWSocial Worker1043923451
  2. Ronald Backer, M.D.Family Medicine Physician1083735146
  3. Alexis Balestracci, RNRegistered Nurse1861774622
  4. Natasha Barbosa-FortesDentist1518491919
  5. Lauren Black, DMDGeneral Practice Dentistry1255079067
  6. Tiffany Borsari, PA-CPhysician Assistant1558624130

Verify Theresa Louise Guanci in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license DN1856534
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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27% more Medicare Part D claims than the average dentist in 2024

109 Medicare Part D claims for 78 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Theresa Guanci109
  2. Specialty average86

Most prescribed

  1. Sodium Fluoride 5000 Plus31 claims
  2. Amoxicillin22 claims
  3. Sodium Fluoride17 claims
  4. Denta 5000 Plus11 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.

Theresa Louise Guanci among 2,934 dentist records in Massachusetts

Theresa Louise Guanci, DMD is one of 2,934 dentist records with a practice address in Massachusetts. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 45% of them.

  • NPI issued2014 · 45% of these records are older, 51% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2014 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 dentist records list a practice address in Mashpee

They are 6 of the 356 NPPES records with a practice address in Mashpee, and 2,934 dentist records in Massachusetts.

The 8 dentist records with the nearest ZIP codes

  1. Natasha Barbosa-FortesMashpee, MA 026491518491919
  2. Adesh Chawla, DMDMashpee, MA 026491477780120
  3. Karen Huynh, DMDMashpee, MA 026491184304289
  4. John Mancini, DDSMashpee, MA 026491528044021
  5. Sarah Schwyhart, DMDMashpee, MA 026491598524019
  6. Kevin Smith, DDSNorth Chatham, MA 026501467469692
  7. Daniel Granger, DMDNorht Eastham, MA 026511972661320
  8. Alexandre DiasHarwich, MA 026451801434022

Common questions

What is Theresa Louise Guanci, DMD's NPI number?

Theresa Louise Guanci, DMD's National Provider Identifier (NPI) is 1487067799, issued on Jun 4, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Theresa Louise Guanci, DMD located?

The NPPES record lists a practice address at 107 Commercial St, Mashpee, MA, 02649. Phone: (508) 539-6050. Providers update this record themselves, so call before visiting.

How can I verify Theresa Louise Guanci, DMD's license?

NPPES lists Massachusetts license number DN1856534, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Theresa Louise Guanci, DMD prescribe under Medicare Part D?

In 2024, Theresa Louise Guanci, DMD had 109 Medicare Part D claims for 78 beneficiaries; the average among dentist prescribers was 86. 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.