Jon J. Pehrson, M.D.
Critical Care Medicine (Internal Medicine) Physician · Weymouth, MA
Jon J. Pehrson, M.D. is a critical care medicine (internal medicine) physician with a practice address in Weymouth, Massachusetts, and NPI 1457306714, issued on May 24, 2006. Check the license (Massachusetts 57578, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jon J. Pehrson
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 57578 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fogg RD, Weymouth, MA 02190
- Phone
- (781) 340-8000
- Enumerated
- May 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (781) 340-3782
- Medicare enrollment
- Enrolled (PECOS I20050908000385); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1977
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 157 in Massachusetts → Look up another NPI →
Also registered at 55 Fogg RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Abreu, CRNACertified Registered Nurse Anesthetist1407330848
- Kathleen Abruzese, R.N.Clinical Nurse Specialist1487773180
- Mohammad AfrasiabiSurgery Physician1063893139
- Hana Altwal, MDInternal Medicine Physician1386075091
- Samuel BabchuckRegistered Nurse1700559515
- Shannon Badgett, LCSWClinical Social Worker1972142834
Verify Jon J. Pehrson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 57578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13.7 times the Medicare Part D claims of the average critical care medicine (internal medicine) physician in 2024
9,538 Medicare Part D claims for 996 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 285 claims were for opioids.
Most prescribed
- Atorvastatin Calcium779 claims
- Lisinopril500 claims
- Levothyroxine Sodium396 claims
- Omeprazole327 claims
- Amlodipine Besylate324 claims
- Hydrochlorothiazide303 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 2 group practices
- Harbor Medical Associates IncSouth Weymouth, MA
- Mass General Brigham Medical Group Suburban Massachusetts IncNewton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jon J. Pehrson among 157 critical care medicine (internal medicine) physician records in Massachusetts
Jon J. Pehrson, M.D. is one of 157 critical care medicine (internal medicine) physician records with a practice address in Massachusetts. 78% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 56% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1977 · median 2005 among the 116 with a school on file
- Record last updated2026 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Massachusetts
There are 157 critical care medicine (internal medicine) physician records in Massachusetts.
All 157 in Massachusetts → Every provider in Weymouth → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Nicholas Csikesz, M.D.Weymouth, MA 021901235367319
- Alexandra IvanovSouth Weymouth, MA 021901700771292
- Frank SchembriWeymouth, MA 021901750466165
- Drew Sheldon, MDWeymouth, MA 021901396190484
- Matthew Weiss, MDSouth Weymouth, MA 021901205829967
- Michael Cho, MDBoston, MA 022151750363990
- Peter Clardy, M.D.Boston, MA 022151629000237
- David Delaney, M.D.Boston, MA 022151194760819
Common questions
What is Jon J. Pehrson, M.D.'s NPI number?
Jon J. Pehrson, M.D.'s National Provider Identifier (NPI) is 1457306714, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jon J. Pehrson, M.D. located?
The NPPES record lists a practice address at 55 Fogg RD, Weymouth, MA, 02190. Phone: (781) 340-8000. Providers update this record themselves, so call before visiting.
How can I verify Jon J. Pehrson, M.D.'s license?
NPPES lists Massachusetts license number 57578, 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 Jon J. Pehrson, M.D. prescribe under Medicare Part D?
In 2024, Jon J. Pehrson, M.D. had 9,538 Medicare Part D claims for 996 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.