NPPES file of Aug 9, 2026

Nicholas G. Fillipon, DO

Internal Medicine Physician · Spencer, MA

Nicholas G. Fillipon, DO is an internal medicine physician with a practice address in Spencer, Massachusetts, and NPI 1851369599, issued on Mar 9, 2006. Check the license (Massachusetts 220617, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1851369599
Name
Nicholas G. Fillipon
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
220617 MA
Self-reported in NPPES; status is on the state search
Practice location
118 W Main St, Spencer, MA 01562
Phone
(508) 885-3025
Enumerated
Mar 9, 2006
Record last updated
Dec 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(508) 885-4090
Medicaid ID
2080681 MA
Medicare enrollment
Enrolled (PECOS I20040726000351); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 118 W Main St

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

  1. Talal Bou-Harb, MDInternal Medicine Physician1508830522
  2. Ryan Fillipon, DOInternal Medicine Physician1700053451
  3. Melissa Hilborn, PA-CPhysician Assistant1306943766
  4. Joseph KahoroMedical Physician Assistant1205324746
  5. Robert Maloney, M.D.Internal Medicine Physician1790705432

Verify Nicholas G. Fillipon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 220617
    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
Open 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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61% more Medicare Part D claims than the average internal medicine physician in 2024

5,129 Medicare Part D claims for 480 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 103 claims were for opioids.

  1. Nicholas Fillipon5,129
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium377 claims
  2. Lisinopril334 claims
  3. Omeprazole193 claims
  4. Levothyroxine Sodium171 claims
  5. Amlodipine Besylate166 claims
  6. Gabapentin162 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

  1. Umass Memorial Medical Group IncWorcester, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nicholas G. Fillipon among 6,825 internal medicine physician records in Massachusetts

Nicholas G. Fillipon, DO is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2001 · median 2004 among the 4,103 with a school on file
  • Record last updated2020 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 internal medicine physician records list a practice address in Spencer

They are 8 of the 96 NPPES records with a practice address in Spencer, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. John Batbouta, MDSpencer, MA 015621417916875
  2. Talal Bou-Harb, MDSpencer, MA 015621508830522
  3. Ryan Fillipon, DOSpencer, MA 015621700053451
  4. Mona Hinrichsen, M.D.Spencer, MA 015621053465476
  5. Joseph Kuruvilla, M.D.Spencer, MA 015621659354322
  6. Jeffrey Lee, M.D.Spencer, MA 015621922080738
  7. Robert Maloney, M.D.Spencer, MA 015621790705432
  8. Michael Falcone, DOSterling, MA 015641730883620

Common questions

What is Nicholas G. Fillipon, DO's NPI number?

Nicholas G. Fillipon, DO's National Provider Identifier (NPI) is 1851369599, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas G. Fillipon, DO located?

The NPPES record lists a practice address at 118 W Main St, Spencer, MA, 01562. Phone: (508) 885-3025. Providers update this record themselves, so call before visiting.

How can I verify Nicholas G. Fillipon, DO's license?

NPPES lists Massachusetts license number 220617, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nicholas G. Fillipon, DO prescribe under Medicare Part D?

In 2024, Nicholas G. Fillipon, DO had 5,129 Medicare Part D claims for 480 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.