NPPES file of Aug 9, 2026

Theodore P. Mason, MD

Otolaryngology Physician · Springfield, MA

Theodore P. Mason, MD is an otolaryngology physician with a practice address in Springfield, Massachusetts, and NPI 1619934668, issued on Apr 26, 2006. Check the license (Massachusetts 213321, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619934668
Name
Theodore P. Mason
Credential
MD
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
213321 MA
Self-reported in NPPES; status is on the state search
Practice location
100 Wason Avenue, Springfield, MA 01107
Phone
(413) 732-7426
Enumerated
Apr 26, 2006
Record last updated
Oct 5, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(413) 734-2371
Medicaid ID
0173631 MA
Medicare enrollment
Enrolled (PECOS I20080523000473); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1995
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 100 Wason Avenue

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

  1. Richard Arenas, MDSurgery Physician1447345434
  2. Cynthia Beauregard, CCC AAudiologist1598925505
  3. Billie Borden, MDSurgery Physician1538513395
  4. Elizabeth Brady, MDSurgical Oncology Physician1861493132
  5. Kimberly Brown, PA-CPhysician Assistant1942476684
  6. Alison Cavanaugh, CCC-AAudiologist1255591251

Verify Theodore P. Mason 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 213321
    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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9% fewer Medicare Part D claims than the average otolaryngology physician in 2024

492 Medicare Part D claims for 211 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 29 claims were for opioids.

  1. Theodore Mason492
  2. Specialty average541

Most prescribed

  1. Nortriptyline Hcl93 claims
  2. Fluticasone Propionate53 claims
  3. Ofloxacin41 claims
  4. Clotrimazole-Betamethasone40 claims
  5. Tobramycin-Dexamethasone37 claims
  6. Triamterene-Hydrochlorothiazid36 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score77.0
  2. Costout of 100 · 30%91.4
  3. Promoting interoperabilityout of 100 · 25%93.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $481.54

6 payments; by number, the most common kind was food and beverage; the largest payer was Cochlear Americas. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Theodore Mason$481.54
  2. Specialty average$1,922.50

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Ear Nose And Throat Surgeons OF Western New England LLCSpringfield, MA

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

Theodore P. Mason among 364 otolaryngology physician records in Massachusetts

Theodore P. Mason, MD is one of 364 otolaryngology physician records with a practice address in Massachusetts. 77% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 54% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1995 · median 2004 among the 239 with a school on file
  • Record last updated2009 · 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 207Y00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Otolaryngology Physician providers in Massachusetts

There are 364 otolaryngology physician records in Massachusetts.

The 8 otolaryngology physician records with the nearest ZIP codes

  1. Lauren BusekroosSpringfield, MA 011071316265622
  2. Robert Eppsteiner, MDSpingfield, MA 011071053547646
  3. Barry Jacobs, MDSpringfield, MA 011071841258456
  4. Grant Moore, MDSpringfield, MA 011071528040417
  5. Daniel Plosky, MDSpringfield, MA 011071093999484
  6. Carl Reiner, MDSpringfield, MA 011071952347254
  7. Jerry Schreibstein, MD.Springfield, MA 011071265499370
  8. Robert Osofsky, MDSpringfield, MA 011041841206026

Common questions

What is Theodore P. Mason, MD's NPI number?

Theodore P. Mason, MD's National Provider Identifier (NPI) is 1619934668, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Theodore P. Mason, MD located?

The NPPES record lists a practice address at 100 Wason Avenue, Springfield, MA, 01107. Phone: (413) 732-7426. Providers update this record themselves, so call before visiting.

How can I verify Theodore P. Mason, MD's license?

NPPES lists Massachusetts license number 213321, 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 Theodore P. Mason, MD prescribe under Medicare Part D?

In 2024, Theodore P. Mason, MD had 492 Medicare Part D claims for 211 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.

What is Theodore P. Mason, MD's MIPS final score?

The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.