---
type: "Bill"
title: "Maryland Medical Assistance Program and Health Insurance - Required Coverage for Calcium Score Testing"
description: "Maryland Medical Assistance Program and Health Insurance - Required Coverage for Calcium Score Testing"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2025"
identifier: "HB 666"
citation: "Maryland HB 666 (2025)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Acevero", "Addison", "Alston", "Amprey", "Bagnall", "Bhandari", "Boyce", "Conaway", "Crutchfield", "Cullison", "Davis", "Feldmark", "Fisher", "Ghrist", "Guzzone", "Harris", "Harrison", "Hill", "Holmes", "Ivey", "J. Long", "Kaiser", "Kaufman", "Kerr", "Lehman", "Lopez", "Martinez", "McCaskill", "Mireku-North", "Pasteur", "Patterson", "Pena-Melnyk", "Phillips", "Queen", "R. Lewis", "Roberson", "Roberts", "Rogers", "Rosenberg", "Ross", "Ruff", "Ruth", "S. Johnson", "Simmons", "Solomon", "Taveras", "Taylor", "Toles", "Turner", "Valderrama", "Wells", "White Holland", "Wilkins", "Williams", "Wims", "Woods", "Woorman"]
version_count: 3
action_count: 12
vote_count: 2
first_action: "2025-01-24"
last_action: "2025-05-20"
source: "openstates"
source_identifier: "ocd-bill/5cd31336-e7d9-4573-bb71-1f4f5c84eb21"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0666?ys=2025RS&search=True"
source_hash: "9e10a33ee3abb0f8bc9c5a44ea38e7d85612a49286de5a23fe9cef79078b5212"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-md"]
---

# Maryland HB 666 (2025) — Maryland Medical Assistance Program and Health Insurance - Required Coverage for Calcium Score Testing

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Chapter - Maryland Medical Assistance Program and Health Insurance - Required Coverage for Calcium Score Testing** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/Chapters_noln/CH_684_hb0666t.pdf)
2. **First - Maryland Medical Assistance Program and Health Insurance - Required Coverage for Calcium Score Testing** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0666f.pdf)
3. **Third - Maryland Medical Assistance Program and Health Insurance - Required Coverage for Calcium Score Testing** (committee substitute) — [source](http://mgaleg.maryland.gov/2025RS/bills/hb/hb0666t.pdf)

## Votes

- On Third Reading — **42–5** (pass) · upper
- On Third Reading — **108–31** (pass) · lower

## Sponsors

- Acevero — primary (person)
- Addison — primary (person)
- Alston — primary (person)
- Amprey — primary (person)
- Bagnall — primary (person)
- Bhandari — primary (person)
- Boyce — primary (person)
- Conaway — primary (person)
- Crutchfield — primary (person)
- Cullison — primary (person)
- Davis — primary (person)
- Feldmark — primary (person)
- Fisher — primary (person)
- Ghrist — primary (person)
- Guzzone — primary (person)
- Harris — primary (person)
- Harrison — primary (person)
- Hill — primary (person)
- Holmes — primary (person)
- Ivey — primary (person)
- J. Long — primary (person)
- Kaiser — primary (person)
- Kaufman — primary (person)
- Kerr — primary (person)
- Lehman — primary (person)
- Lopez — primary (person)
- Martinez — primary (person)
- McCaskill — primary (person)
- Mireku-North — primary (person)
- Pasteur — primary (person)
- Patterson — primary (person)
- Pena-Melnyk — primary (person)
- Phillips — primary (person)
- Queen — primary (person)
- R. Lewis — primary (person)
- Roberson — primary (person)
- Roberts — primary (person)
- Rogers — primary (person)
- Rosenberg — primary (person)
- Ross — primary (person)
- Ruff — primary (person)
- Ruth — primary (person)
- S. Johnson — primary (person)
- Simmons — primary (person)
- Solomon — primary (person)
- Taveras — primary (person)
- Taylor — primary (person)
- Toles — primary (person)
- Turner — primary (person)
- Valderrama — primary (person)
- Wells — primary (person)
- White Holland — primary (person)
- Wilkins — primary (person)
- Williams — primary (person)
- Wims — primary (person)
- Woods — primary (person)
- Woorman — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-01-24** First Reading Health and Government Operations `referral-committee`
- **2025-01-29** Hearing 2/06 at 1:00 p.m.
- **2025-03-10** Favorable with Amendments Report by Health and Government Operations `committee-passage-favorable`
- **2025-03-11** Favorable with Amendments { `committee-passage-favorable`
- **2025-03-11** Second Reading Passed with Amendments
- **2025-03-12** Third Reading Passed `passage`
- **2025-03-12** Referred Finance `referral-committee`
- **2025-03-24** Favorable Report by Finance `committee-passage-favorable`
- **2025-03-25** Favorable Adopted Second Reading Passed `committee-passage-favorable`
- **2025-03-31** Third Reading Passed `passage`
- **2025-04-01** Returned Passed
- **2025-05-20** Approved by the Governor - Chapter 684 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5cd31336-e7d9-4573-bb71-1f4f5c84eb21`. Confidence: reported (aggregated from official Maryland legislature records).