Registry data as of Aug 27, 2026

John Bordiuk, MD

Internal Medicine Physician · Wellesley, MA

John Bordiuk, MD is an internal medicine physician with a practice address in Wellesley, Massachusetts, and NPI 1568571396, issued on Aug 29, 2006. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1568571396
Name
John Bordiuk
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
65 Walnut St, Wellesley, MA 02481
Phone
(781) 239-9900
Enumerated
Aug 29, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 65 Walnut St

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

  1. Jillian AmoOccupational Therapist1912327271
  2. Sabrina Baloun, PAPhysician Assistant1790938645
  3. Margaret Bauman, MDPediatrics Physician1528059813
  4. Jessie Bernstein, NPNurse Practitioner1194078436
  5. Sneha Campanella, PAMedical Physician Assistant1679778963
  6. Elizabeth Daher, MDOphthalmology Physician1215957543

Verify John Bordiuk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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.

63% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,043 Medicare Part D claims for 138 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 64 claims were for opioids.

  1. John Bordiuk1,043
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium57 claims
  2. Levothyroxine Sodium52 claims
  3. Lorazepam43 claims
  4. Rosuvastatin Calcium36 claims
  5. Clonazepam35 claims
  6. Finasteride31 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.

One hospital or facility affiliation

  1. Inner Balance Integrative Medicine LLCWellesley, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

79 internal medicine physician records list a Wellesley practice address

They are 79 of the 1,117 NPPES records with a Wellesley practice address, and 7,865 internal medicine physician records in Massachusetts.

Other internal medicine physician records in Massachusetts

  1. Nawal Aamir, MDWorcester, MA1588248926
  2. Zainab AbbasWorcester, MA1609028000
  3. Nooshin Abbasi, MD MPHNewton, MA1831888353
  4. Lauren Abbate, MDBoston, MA1922099621
  5. Bassima Abdallah, MDBoston, MA1912327305
  6. Samah Abdallah, MDBrighton, MA1730814971
  7. Omar Abdel-Wahab, M.D.Boston, MA1023042777
  8. Salah Abdelgadir, MDBoston, MA1891280954
  9. Mahmoud Abdelghany, M.D.Springfield, MA1134479629
  10. Mohab AbdelhalimBoston, MA1871388496

Common questions

What is John Bordiuk, MD's NPI number?

John Bordiuk, MD's National Provider Identifier (NPI) is 1568571396, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Bordiuk, MD located?

The NPPES record lists a practice address at 65 Walnut St, Wellesley, MA, 02481. Phone: (781) 239-9900. Providers update this record themselves, so call before visiting.

How can I verify John Bordiuk, MD's license?

Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Bordiuk, MD prescribe under Medicare Part D?

In 2024, John Bordiuk, MD had 1,043 Medicare Part D claims for 138 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.