Breach filing
ArchivedDoctors 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
- State
- Massachusetts (MA)
- 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 boundIBM 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 entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|
| ReproSource Fertility Diagnostics, Inc. | Healthcare Provider | 253,774 | 8 Oct 2021 | |||
| UMass Memorial Health Care, Inc. | Business Associate | 209,048 | 15 Oct 2021 | |||
| Lawrence General Hospital | Healthcare Provider | 176,587 | 5 Nov 2020 | |||
| Harbor Health Services, Inc. | Healthcare Provider | 17,380 | 9 Aug 2019 | |||
| Baystate Health | Healthcare Provider | 11,658 | 5 Apr 2019 |
Index / Companion schedules
13 HHS breach register
→Hub: every filing, by state, year and entity.
04 Biggest breaches
→Mega-breaches with primary-source cost figures.
Industry / Healthcare
→IBM 2026: $6.64M average, 13 years at #1.
Regulation / HIPAA penalties
→OCR enforcement tiers and the 60-day rule.
11 50-state laws
→Deadline, AG threshold and penalties per state.
Cost / Per record
→Where the per-record model is reliable.
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.