Breach filing
ArchivedThe Ambulatory Surgery Center at St. Mary (ACASM): 13,000 individuals, Jul 2016.
The Ambulatory Surgery Center at St. Mary (ACASM) reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 7 July 2016. The filing records the organisation as a healthcare provider in Pennsylvania and lists 13,000 individuals affected, which makes it the 110th largest of the 339 Pennsylvania filings on the register and the 72nd largest of the 328 filings submitted nationally in 2016. Among the 11 Pennsylvania filings made in 2016 it ranks 3rd.
Individuals affected
13,000
As reported to HHS
Modelled cost (IBM 2025)
$2.08M
Method shown, not disclosed
Rank in PA
110th
of 339 Pennsylvania filings
Rank in 2016
72nd
of 328 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
- Healthcare Provider
- Individuals affected
- 13,000
- Breach submission date
- 7 July 2016
- Submission year
- 2016
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- State
- Pennsylvania (PA)
- Portal status
- listed in the HHS OCR breach portal archive
- Rank in Pennsylvania by size
- 110th of 339
- Rank in 2016 nationally
- 72nd of 328
- Pennsylvania median filing
- 3,905 individuals
- Register id (derived)
- PA-20160707-ambulatory-surgery-center-at-st-mary-aca
Section F.2 / In context
Where this filing sits in Pennsylvania and in 2016
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 228 of the 339 Pennsylvania filings (67%) and on 35% of all filings submitted in 2016. Network Server is the most common location in the state, appearing on 51% of Pennsylvania filings.
No business associate is recorded on the filing; 34% of Pennsylvania filings do involve one. At 13,000 individuals the breach is 3.3 times the Pennsylvania median filing of 3,905 and 3.3 times the national median of 4,000 across all 7,884 filings. It sits in the 10,000 to 99,999 band, which holds 1,938 filings.
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.
Pennsylvania's breach notification statute (73 Pa. Stat. 2301 et seq.) requires notice to affected residents without unreasonable delay. Its attorney general threshold: more than 500 Pennsylvania residents. 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 13,000 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 $2.08M; the 2026 edition's $192 gives $2.50M. Both are modelled estimates with the method shown, not costs disclosed by The Ambulatory Surgery Center at St. Mary (ACASM). For scale, IBM's 2026 average cost of a healthcare breach is $6.64M, so this filing models at 0.4 times the sector average.
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.
The covered entity (CE), The Ambulatory Surgery Center at St. Mary, experienced a ransomware attack affecting the electronic protected health information (ePHI) of approximately 13,000 individuals. The ePHI involved included names, addresses, dates of birth, Social Security numbers, drivers' license information, and clinical information. Following the breach, the CE implemented additional technical and security safeguards and retrained its staff. OCR provided technical assistance to the CE.
Section F.5 / Modelled cost
13,000 individuals through IBM's per-record figures
Modelled cost / method shown, not a disclosed cost
ModelledIBM 2025 customer PII, $160 per record
$2.08M
13,000 x $160
IBM 2026 customer PII, $192 per record
$2.50M
13,000 x $192
Method: individuals affected, as reported by The Ambulatory Surgery Center at St. Mary (ACASM) 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
Pennsylvania statute and the HIPAA rule
State notification statute
Pennsylvania: 73 Pa. Stat. 2301 et seq.
Breach of Personal Information Notification Act (amended by Act 33 of 2024)
- Notice to individuals
- Without unreasonable delay
- Attorney general threshold
- More than 500 Pennsylvania residents (Without unreasonable delay (online portal))
- Private right of action
- Yes: Treated as an unfair or deceptive practice; consumers may pursue civil suits
- Penalty
- AG enforcement via civil actions, injunctive relief, civil penalties, and restitution
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
Pennsylvania filings closest in size
Neighbours by size rank among Pennsylvania filings in 2016, topped up from other years where 2016 has too few. Filings of 10,000 or more link to their own page.
| Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|
| Integrated Health Solutions PC | Healthcare Provider | 19,776 | 25 May 2016 | |||
| King of Prussia Dental Associates | Healthcare Provider | 16,228 | 13 Sep 2016 | |||
| Brodhead Dental Center | Healthcare Provider | 5,872 | 19 Dec 2016 | |||
| Einstein Healthcare Network | Healthcare Provider | 2,939 | 1 Apr 2016 |
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 5532.
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.