Form: Cost-of-Breach DisclosureSource: IBM Cost of a Data BreachFiled: 28 Apr 2026
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Filing MA-20190422-doctors-management-servicesHHS OCR Breach Register, Massachusetts

Breach filing

Archived

Doctors Management Services, Inc.: 206,695 individuals, Apr 2019.

Doctors Management Services, Inc. reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 22 April 2019. The filing records the organisation as a business associate in Massachusetts and lists 206,695 individuals affected, which makes it the 12th largest of the 241 Massachusetts filings on the register and the 25th largest of the 511 filings submitted nationally in 2019. Among the 10 Massachusetts filings made in 2019 it ranks 1st.

Individuals affected

206,695

As reported to HHS

Modelled cost (IBM 2025)

$33.1M

Upper bound, method shown

Rank in MA

12th

of 241 Massachusetts filings

Rank in 2019

25th

of 511 filings nationally

Section F.1 / The filing

As posted by HHS OCR

Every value below is the portal's own field for this filing, plus its rank within the register.

Covered entity type
Business Associate
Individuals affected
206,695
Breach submission date
22 April 2019
Submission year
2019
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
Business associate present
Yes
Portal status
listed in the HHS OCR breach portal archive
Rank in Massachusetts by size
12th of 241
Rank in 2019 nationally
25th of 511
Massachusetts median filing
3,900 individuals
Register id (derived)
MA-20190422-doctors-management-services

Section F.2 / In context

Where this filing sits in Massachusetts and in 2019

OCR classifies the incident as a hacking or IT incident, with the breached information held in a network server. Hacking/IT Incident is the type recorded on 151 of the 241 Massachusetts filings (63%) and on 61% of all filings submitted in 2019. Network Server is the most common location in the state, appearing on 51% of Massachusetts filings.

A business associate is recorded as present on the filing, as it is on 37% of Massachusetts filings. At 206,695 individuals the breach is 53 times the Massachusetts median filing of 3,900 and 52 times the national median of 4,000 across all 7,884 filings. It is one of 801 filings of 100,000 or more individuals.

As of 28 August 2026 the case is listed in the HHS OCR breach portal archive. OCR's closing summary of the case is reproduced in full below.

Massachusetts's breach notification statute (Mass. Gen. Laws ch. 93H) requires notice to affected residents as soon as practicable and without unreasonable delay. Its attorney general threshold: all breaches (AG and Office of Consumer Affairs and Business Regulation). The HIPAA Breach Notification Rule ran alongside it: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery, which is the clock that put this filing on the portal.

Multiplying 206,695 individuals by IBM's $160 customer-PII cost per record (Cost of a Data Breach 2025, the figure the site's calculator uses) gives a modelled $33.1M; the 2026 edition's $192 gives $39.7M. Both are modelled estimates with the method shown, not costs disclosed by Doctors Management Services, Inc.. Because the filing is above the roughly 100,000-record range in which the per-record figure is reliable, the result is an upper bound, not an estimate: fixed costs are spread across far more records at this scale.

Section F.3 / OCR closing summary

The portal's archived description, in full

Written by the Office for Civil Rights when the case was closed and reproduced verbatim from the HHS export.

Today, the U.S. Department of Health and Human Services (HHS), Office for Civil Rights (OCR) announced a settlement under the Health Insurance Portability and Accountability Act (HIPAA) with Doctors' Management Services, a Massachusetts medical management company that provides a variety of services, including medical billing and payor credentialing. The HIPAA Privacy, Security, and Breach Notification Rules set forth the requirements that HIPAA-regulated entities must follow to protect the privacy and security of health information. The $100,000 settlement resolves a large breach report regarding a ransomware attack that affected the electronic protected health information of 206,695 individuals. Ransomware is a type of malware (malicious software) designed to deny access to a user's data, usually by encrypting the data with a key known only to the hacker who deployed the malware, until a ransom is paid. This marks the first ransomware agreement OCR has reached.

October is Cybersecurity Awareness Month, and OCR has been working with health insurers, providers, and clearinghouses covered by HIPAA to ensure better data security. Ransomware and hacking are the primary cyber-threats in health care. In the past four years, there has been a 239% increase in large breaches reported to OCR involving hacking and a 278% increase in ransomware. This trend continues in 2023, where hacking accounts for 77% of the large breaches reported to OCR. Additionally, the large breaches reported this year have affected over 88 million individuals, a 60% increase from last year.

"Our settlement highlights how ransomware attacks are increasingly common and targeting the health care system. This leaves hospitals and their patients vulnerable to data and security breaches." said OCR Director, Melanie Fontes Rainer. "In this ever-evolving space, it is critical that our health care system take steps to identify and address cybersecurity vulnerabilities along with proactively and regularly review risks, records, and update policies. These practices should happen regularly across an enterprise to prevent future attacks."

On April 22, 2019, Doctors' Management Services filed a breach report with HHS stating that approximately 206,695 individuals were affected when their network server was infected with GandCrab ransomware. The initial unauthorized access to the network occurred on April 1, 2017; however, Doctors' Management Services did not detect the intrusion until December 24, 2018, after ransomware was used to encrypt their files. In April 2019, OCR began its investigation.

OCR's investigation found evidence of potential failures by Doctors' Management Services to have in place an analysis to determine the potential risks and vulnerabilities to electronic protected health information across the organization. Other findings included insufficient monitoring of its health information systems' activity to protect against a cyber-attack, and a lack of policies and procedures in place to implement the requirements of the HIPAA Security Rule to protect the confidentiality, integrity, and availability of electronic protected health information.

Under the terms of the settlement agreement, OCR will monitor Doctors' Management Services for three years to ensure compliance with HIPAA. In addition, Doctors' Management Services has agreed to pay $100,000 to OCR and to implement a corrective action plan, which identifies steps that Doctors' Management Services will take to resolve potential violations of the HIPAA Privacy and Security Rules and protect the security of electronic protected health information.

Section F.5 / Modelled cost

206,695 individuals through IBM's per-record figures

Modelled cost / method shown, not a disclosed cost

Upper bound

IBM 2025 customer PII, $160 per record

$33.1M

206,695 x $160

IBM 2026 customer PII, $192 per record

$39.7M

206,695 x $192

Method: individuals affected, as reported by Doctors Management Services, Inc. to HHS, multiplied by IBM's customer-PII cost per record (Cost of a Data Breach 2025 Figure 6 and the 2026 edition). No cost has been disclosed by the entity for this filing; the figure is a planning estimate, not a fact about the breach. IBM's per-record figures come from mid-volume breaches and IBM cautions against applying them to breaches involving millions of records; the site's per-record page explains where the multiplication holds and where it breaks down.

Context: IBM's average cost of a healthcare breach is $6.64M in the 2026 report ($7.42M in 2025); the global average across all sectors was $4.44M in 2025.

Cost per record: method and limits / Healthcare breach cost, IBM 2026

Section F.6 / Notification clock

Massachusetts statute and the HIPAA rule

State notification statute

Massachusetts: Mass. Gen. Laws ch. 93H

paired with 201 CMR 17.00 data-security regulations

Notice to individuals
As soon as practicable and without unreasonable delay
Attorney general threshold
All breaches (AG and Office of Consumer Affairs and Business Regulation) (As soon as practicable and without unreasonable delay)
Private right of action
Yes: Chapter 93A claims, subject to a 30-day pre-suit demand letter requirement
Penalty
Up to $5,000 per violation; treble damages for willful violations, plus attorney fees

The HIPAA Breach Notification Rule runs alongside the state statute: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery.

Section F.7 / Peer filings

Massachusetts filings closest in size

Neighbours by size rank among Massachusetts filings in 2019, topped up from other years where 2019 has too few. Filings of 10,000 or more link to their own page.

Covered entityTypeIndividualsSubmitted
ReproSource Fertility Diagnostics, Inc.Healthcare Provider253,7748 Oct 2021
UMass Memorial Health Care, Inc.Business Associate209,04815 Oct 2021
Lawrence General HospitalHealthcare Provider176,5875 Nov 2020
Harbor Health Services, Inc.Healthcare Provider17,3809 Aug 2019
Baystate HealthHealthcare Provider11,6585 Apr 2019

Index / Companion schedules

Provenance

Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal (breaches affecting 500 or more individuals), retrieved 2026-08-28. Public domain. Individuals affected and dates as reported by the covered entity.

Portal: ocrportal.hhs.gov breach report. Statutory basis: HITECH Act section 13402(e)(4): the Secretary must post a list of breaches of unsecured protected health information affecting 500 or more individuals. Breaches affecting fewer than 500 individuals are reported to OCR annually and are not posted, so they are not on this register. Status wording follows the portal's two tabs ("Cases Currently Under Investigation" and "Archive") as of 28 August 2026; a filing moves to the archive when OCR closes the case. Modelled costs on this site are a method applied to the reported count, using IBM Cost of a Data Breach per-record figures, and are never a cost disclosed by the entity. This row: hhs-breach-archive__2026-08-28.csv, export row 4480.

Corrections: if you represent a listed entity and the portal row has been amended, email [email protected] with the portal entry and we will re-pull the export.