Marc Christopher Valli, D.M.D.
Dentist · Groton, MA
Marc Christopher Valli, D.M.D. is a dentist with a practice address in Groton, Massachusetts, and NPI 1245676816, issued on May 22, 2013. Check the license (Massachusetts DN1858712, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marc Christopher Valli
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- DN1858712 MA
Self-reported in NPPES; status is on the state search - Practice location
- 292 Main St, Groton, MA 01450
- Phone
- (978) 448-5241
- Enumerated
- May 22, 2013
- Record last updated
- Mar 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,934 in Massachusetts → Look up another NPI →
Also registered at 292 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Molly Valli, DMDDentist1396088290
Verify Marc Christopher Valli in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license DN1858712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average dentist in 2024
55 Medicare Part D claims for 39 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin35 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: $106.06
3 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
Marc Christopher Valli among 2,934 dentist records in Massachusetts
Marc Christopher Valli, D.M.D. 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 2013, is newer than 41% of them.
- NPI issued2013 · 41% of these records are older, 55% 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 updated2021 · 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).
4 dentist records list a practice address in Groton
They are 4 of the 140 NPPES records with a practice address in Groton, and 2,934 dentist records in Massachusetts.
All 2,934 in Massachusetts → Every provider in Groton → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- G. Evans, DMDGroton, MA 014501255596821
- Mark Randall, D.M.D.Groton, MA 014501316001233
- Molly Valli, DMDGroton, MA 014501396088290
- Doninick Dipilla, DMDLeominster, MA 014531144439480
- Romeo Donati, DMDLeominster, MA 014531740244433
- Azadeh Emam, D.M.D.Leominster, MA 014531982997177
- Celia Huang, D.D.S.Leominster, MA 014531447639034
- Soyoung Kim, DMDLeominster, MA 014531891127106
Common questions
What is Marc Christopher Valli, D.M.D.'s NPI number?
Marc Christopher Valli, D.M.D.'s National Provider Identifier (NPI) is 1245676816, issued on May 22, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Marc Christopher Valli, D.M.D. located?
The NPPES record lists a practice address at 292 Main St, Groton, MA, 01450. Phone: (978) 448-5241. Providers update this record themselves, so call before visiting.
How can I verify Marc Christopher Valli, D.M.D.'s license?
NPPES lists Massachusetts license number DN1858712, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Marc Christopher Valli, D.M.D. prescribe under Medicare Part D?
In 2024, Marc Christopher Valli, D.M.D. had 55 Medicare Part D claims for 39 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.