NPPES file of Aug 9, 2026

Dennis James Teehan, M.D

Preventive Medicine/Occupational Environmental Medicine Physician · Boston, MA

Dennis James Teehan, M.D is a preventive medicine/occupational environmental medicine physician with a practice address in Boston, Massachusetts, and NPI 1306006945, issued on Jun 16, 2008. Check the license (Massachusetts 250272, 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
1306006945
Name
Dennis James Teehan
Credential
M.D
Primary taxonomy
Preventive Medicine/Occupational Environmental Medicine Physician 2083P0500X
License number
250272 MA
Self-reported in NPPES; status is on the state search
Practice location
665 Huntington Ave, Boston, MA 02115
Phone
(617) 432-3327
Enumerated
Jun 16, 2008
Record last updated
Jun 27, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20121105000373); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2008
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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8 nearest preventive medicine/occupational environmental medicine physician records → All 18 in Massachusetts → Look up another NPI →

Also registered at 665 Huntington Ave

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

  1. Sarah Fortune, M.D.Infectious Disease Physician1942235965
  2. Russ Hauser, MDPreventive Medicine/Occupational Environmental Medicine Physician1124141940
  3. Erin Teeple, MDOrthopaedic Surgery Physician1245457126

Verify Dennis James Teehan 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 250272    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

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2.5 times the Medicare Part D claims of the average preventive medicine/occupational environmental medicine physician in 2024

1,582 Medicare Part D claims for 121 beneficiaries, against an average of 626 among the 189 providers of this specialty who prescribed in Part D. 30 claims were for opioids.

  1. Dennis Teehan1,582
  2. Specialty average626

Most prescribed

  1. Atorvastatin Calcium97 claims
  2. Losartan Potassium95 claims
  3. Ozempic72 claims
  4. Rosuvastatin Calcium71 claims
  5. Trulicity63 claims
  6. Lisinopril58 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: $2,162.69

107 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 71 providers of this specialty with any payment received $2,513.26 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Teehan$2,162.69
  2. Specialty average$2,513.26

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

Dennis James Teehan among 18 preventive medicine/occupational environmental medicine physician records in Massachusetts

Dennis James Teehan, M.D is one of 18 preventive medicine/occupational environmental medicine physician records with a practice address in Massachusetts. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 78% of them.

  • NPI issued2008 · 78% of these records are older, 17% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Record last updated2014 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083P0500X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Preventive Medicine/Occupational Environmental Medicine Physician providers in Massachusetts

There are 18 preventive medicine/occupational environmental medicine physician records in Massachusetts.

All 18 in Massachusetts → Every provider in Boston → Preventive Medicine/Occupational Environmental Medicine Physician nationwide →

The 8 preventive medicine/occupational environmental medicine physician records with the nearest ZIP codes

  1. Russ Hauser, MDBoston, MA 021151124141940
  2. Thomas Winters, MD, FACOEMBoston, MA 021151922186840
  3. Manijeh Berenji, M.D.Boston, MA 021181033315114
  4. Reid Boswell, M.D., M.P.H.Cambridge, MA 021381265417646
  5. Neil Jenkins, MDCambridge, MA 021421598080814
  6. Patthrarawalai Phichalai, M.D., M.P.H.Somerville, MA 021451942756192
  7. Cheng-Yi Lee, MD, MPHBoston, MA 022151528208733
  8. Britt Hatfield, MD, MBA, MPH, FACOEMBeverly, MA 019151720068802

Common questions

What is Dennis James Teehan, M.D's NPI number?

Dennis James Teehan, M.D's National Provider Identifier (NPI) is 1306006945, issued on Jun 16, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Dennis James Teehan, M.D located?

The NPPES record lists a practice address at 665 Huntington Ave, Boston, MA, 02115. Phone: (617) 432-3327. Providers update this record themselves, so call before visiting.

How can I verify Dennis James Teehan, M.D's license?

NPPES lists Massachusetts license number 250272, 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 Dennis James Teehan, M.D prescribe under Medicare Part D?

In 2024, Dennis James Teehan, M.D had 1,582 Medicare Part D claims for 121 beneficiaries; the average among preventive medicine/occupational environmental medicine physician prescribers was 626. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.