Jessica Chang
jessicachang.bsky.social
Jessica Chang
@jessicachang.bsky.social
• Associate Director of Research at Health Care Cost Institute
• Health economist
• Claims data nerd
• UMN SPH HSRPA PhD
• HNL kamaʻāina🍍
• Views are my own
🩺 New HCCI research on primary care spending in employer-sponsored insurance and Medicare fee-for-service 🩺

📉 Key findings:
-In 2022, approximately 4% of medical spending was on primary care
-Since 2018, the share of primary care spending decreased
-Higher share of PCP spending in rural areas

👇👇👇
4% of Health Spending Goes to Primary Care
Primary care offers patients a critical connection point to the health care system. With contact, continuity, comprehensiveness, and coordination as its base1, primary care has been shown to improve h...
bit.ly
September 17, 2025 at 5:51 PM
I don't know who needs to know this but buying a portable monitor (Costcoooo) has been such a game changer for productivity during work trips #ASHEcon2025
June 23, 2025 at 11:58 PM
As US rural hospitals continue to face financial distress and uncertainty, our latest research found that rural hospital closures led to an 3.6% price increase among nearby surviving hospitals. Our results highlight the anticompetitive price spillover in rural hospital markets.

👇👇👇👇👇👇👇👇👇👇👇👇👇
Rural Hospital Closures Led To Increased Prices At Nearby ‘Surviving’ Hospitals, 2012–22 | Health Affairs Journal
Rural hospitals in the US have closed at a rapid pace in recent years, raising concerns about decreased access to care and declining competition in rural markets. Because prices paid by commercial health insurance plans are negotiated between hospitals and insurers, hospital closure may give “surviving” hospitals increased leverage to negotiate higher prices. Using commercial claims data, we studied the effect of hospital closure on the prices charged by nearby surviving hospitals. We found that hospital closures during the period 2014–18 led to a 3.6 percent increase in prices at surviving hospitals, driven by larger price increases in the three to four years after closure. Price effects were concentrated among surviving hospitals with market power—hospitals with system affiliations and hospitals operating in less competitive markets. We also found that closed hospitals charged lower prices than nearby hospitals in the preclosure period. Thus, closure eliminated low-price hospital options from rural markets. Overall, our findings suggest that hospital closure can have a meaningful impact on commercial prices. Policies targeting rural hospitals should consider the anticompetitive effects of closure, in addition to devoting continued attention to access to and quality of care.
www.healthaffairs.org
May 6, 2025 at 4:37 PM
Post- #ASSA2025 podium presentation: in-n-out
January 4, 2025 at 1:40 AM
Papers revisions are done! Now time for walk at the beach. Polar opposite view of @mollyjeffery.bsky.social winter walks. Mele Kalikimaka! 🎄
December 25, 2024 at 10:54 PM
👋👋👋 @michalhorny.bsky.social and I are still looking for one more paper for our #ASHEcon2025 panel submission!!! if you have a paper on site neutrality, facility fees, consolidation, state health policy, or anything adjacent, let us know!!
Do you plan to attend #ASHEcon2025?

Do you have an abstract on medical billing, site neutrality, vertical integration, hospital prices, or state health policy?

Would you be interested in putting together an organized session?

If you said yes 3x, hit me up!
November 27, 2024 at 6:47 PM

🚨NEW PAPER🚨 Seems timely now that bsky has (maybe?) taken off. In our paper newly published at Health Affairs Scholar, we asked the question how have commercial inpatient prices growth rates over the last decade varied by hospital characteristics? Disclaimer: This is N-O-T a causal paper.
🧵:
(1/6)
Commercial inpatient hospital price growth driven by system affiliation and nonprofit-status hospitals
Abstract. As policymakers continue to grapple with rising health care costs and prices, understanding trends and variations in inpatient prices among hospi
doi.org
November 18, 2024 at 5:41 PM
Since the launch of 1st biosimilar in late 2017, faster uptake of biosimilar among 6 drug classes w/ biosim competitors have yielded savings in ESI pop w/ sustained year-to-year lower ESI spending. Policy levers such as clinical interchangeability and recent IRA legis can further facilitate uptake👇👇
Five years since US first biosimilar market entry, first signs of savings attributed to biosimilars in the employer-sponsored insurance population - HCCI
Biologic drugs treat a range of diseases such as cancer, diabetes, retinal diseases, Crohn's disease and many other conditions. Despite accounting for use by ju...
healthcostinstitute.org
November 4, 2024 at 7:36 PM
A barrier to transparency is that it assumes the average consumer is super human aware of all ancillary codes for encounters like colonoscopy. We used our ESI claims to provide healthprices.org (formerly Guroo) a searchable tool for total expected costs (ancillary incl) at national & local markets 👇
Health Care Prices
Because health care costs should be available to everyone.
HealthPrices.org
October 29, 2024 at 3:03 PM
⚡New Report⚡: HCCI’s 2022 annual report examines health care spending, use, and prices from 2018-2022 among the ESI population. In 2022, per-person spending among people with ESI averaged more than $6,700.

healthcostinstitute.org/health-care-...
Annual Reports
healthcostinstitute.org
April 25, 2024 at 5:34 PM
📢ICYMI: my HCCI colleague Tanya presented HCCI findings on cardiac rehab use among TM, MA, ESI, and Medicaid enrollees at Million Hearts collaborative meeting today! Simply put, more room for opportunities in #cardiacrehab use #CRSavesLives

t.co/RivXbMqrNM
February 22, 2024 at 7:50 PM
As a long-time fan of @kffhealthnews.bsky.social Bill of the Month series, it was such a treat to geek out on my favorite topic of all things healthcare prices and billing nuances (literally can only exist in America) #siteneutrality
Out for Blood? For Routine Lab Work, the Hospital Billed Her $2,400 - KFF Health News
Convenient as it may be, beware of getting your blood drawn at a hospital. The cost could be much higher than at an independent lab, and your insurance might not cover it all.
kffhealthnews.org
November 21, 2023 at 5:06 PM
Come learn about HCCI's giant ESI claims data warehouse (covering 55m ESI lives annually) and how to access it to answer your research questions!!!!

A couple of research questions I have used this data include hospital and admin. Rx prices, rural bypass behavior, and population health care spending
Welcome! You are invited to join a webinar: Introduction to HCCI - Learn How to Use HCCI Data for yo...
Welcome! You are invited to join a webinar: Introduction to HCCI - Learn How to Use HCCI Data for your Research. After registering, you will receive a confirmation email about joining the webinar.
us06web.zoom.us
November 17, 2023 at 9:43 PM
🚨🚨 In a new HCCI study on ESI enrollees with acute COVID between 2020 and 2021, we found that 1 in 4 developed evidence of Long COVID which was accompanied by 5x higher medical spending compared to those who did not develop Long COVID 👇🏻👇🏻
Long COVID Affects People with Higher Medical Needs and is Associated with Higher Per Person Health ...
Important research is underway to understand the impacts of Long COVID. Studies about the clinical pathways, patient-specific needs, and treatment for Long COVI...
healthcostinstitute.org
September 28, 2023 at 8:54 PM
🚨 New paper alert at Health Affairs! The Health Podyssey podcast covering this paper dropped today

Using HCCI data, we find that employers aren't negotiating lower prices for employees in self-insured plans despite incentives to do so.
www.healthaffairs.org
September 19, 2023 at 6:32 PM