Registry data as of Aug 27, 2026

Torunn Yock, MD

Radiation Oncology Physician · Boston, MA

Torunn Yock, MD is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1144203985, issued on Nov 25, 2005. Check the license (Massachusetts 203967, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1144203985
Name
Torunn Yock
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
203967 MA
Self-reported in NPPES; status is on the state search
Practice location
100 Blossom St, Boston, MA 02114
Phone
(617) 724-1548
Enumerated
Nov 25, 2005
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 100 Blossom St

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

  1. Roby Bhattacharyya, MD, PHDInternal Medicine Physician1073718672
  2. Vassiliki Boussiotis, MD PHDInternal Medicine Physician1861474215
  3. Paul Busse, PHD MDTherapeutic Radiology Physician1073587291
  4. George Canellos, MDInternal Medicine Physician1114908027
  5. Annie Chan, MDRadiation Oncology Physician1306874169
  6. Noah Choi, MDTherapeutic Radiology Physician1467434019

Verify Torunn Yock 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 203967
    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.

86% fewer Medicare Part D claims than the average radiation oncology physician in 2024

19 Medicare Part D claims, against an average of 135 among the 4,225 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Torunn Yock19
  2. Specialty average135

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: $2,506.08

2 payments, mostly food and beverage; the largest payer was Mevion_Medical_Systems_Inc. The 2,851 providers of this specialty with any payment received $1,903.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Torunn Yock$2,506.08
  2. Specialty average$1,903.20

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

2 hospital and facility affiliations

  1. Massachusetts General Physicians Organization IncDanvers, MA
  2. The General Hospital CorporationBoston, 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.

Radiation Oncology Physician providers in Massachusetts

There are 203 radiation oncology physician records in Massachusetts.

Other radiation oncology physician records in Massachusetts

  1. Anthony Abner, MDCambridge, MA1487629127
  2. Matthew Abrams, M.D.Boston, MA1104189117
  3. Todd Adams, M.D.Medford, MA1972751493
  4. Jenna Adleman, MDBoston, MA1528613833
  5. Nima Aghdam, M.D.Boston, MA1942696752
  6. Michele Albert, MDBoston, MA1285691972
  7. Brian Alexander, M.D.Boston, MA1275511149
  8. Aaron Allen, MDBoston, MA1396849527
  9. Erik Anderson, M.D. PH.D.Boston, MA1528488269
  10. Joseph Aronovitz, M.D.Boston, MA1316995418

Common questions

What is Torunn Yock, MD's NPI number?

Torunn Yock, MD's National Provider Identifier (NPI) is 1144203985, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Torunn Yock, MD located?

The NPPES record lists a practice address at 100 Blossom St, Boston, MA, 02114. Phone: (617) 724-1548. Providers update this record themselves, so call before visiting.

How can I verify Torunn Yock, MD's license?

NPPES lists Massachusetts license number 203967, as entered by the provider. 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 Torunn Yock, MD prescribe under Medicare Part D?

In 2024, Torunn Yock, MD had 19 Medicare Part D claims; the average among radiation oncology physician prescribers was 135. 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.