| Abdulghani Ahsan | 140 Academy St Presque Isle, ME 04769 | (207) 768-4000 |
| Abouleish Hassan | 22 Hartford St Houlton, ME 04730 | (207) 532-4068 |
| Acadia Hospital Pittsfield Clinic | 169 Main St Pittsfield, ME 04967 | (207) 487-3308 |
| Access Team Spring Harbor Hospital | 576 Saint John St Portland, ME 04102 | (207) 780-0020 |
| Acupuncture Clinic | 6 Bennett Rd Yarmouth, ME 04096-6757 | (207) 846-4433 |
| Addiction Resource Center | 20 Bristol Rd Damariscotta, ME 04543 | (207) 563-2311 |
| ADI Philpott DO | 222 Saint John St Portland, ME 04102 | (207) 774-3901 |
| Advanced Gynecology & Surgical Associates Of York Hospital | 12 Hospital Dr York, ME 03909 | (207) 361-3666 |
| Affiliated Laboratory Inc-Portland | 1250 Forest Ave Portland, ME 04103-1889 | (207) 878-2081 |
| Aker Michael W | 20 E Blue Hill Rd Blue Hill, ME 04614 | (207) 374-2186 |
| Alan C Carter Do | 40 Park Rd Westbrook, ME 04092-3188 | (207) 857-8400 |
| Albert Paul K | 125 Oak St Ellsworth, ME 04605 | (207) 667-4237 |
| Alfred-Waterboro Veterinary Hospital | RR 202 Waterboro, ME 04087 | (207) 247-3100 |
| ALI/Portland | 1250 Forest Ave Portland, ME 04103-1889 | (207) 878-2081 |
| Allerresponz | 203 Anderson St Ste 4 Portland, ME 04101-2596 | (207) 775-2574 |
| Allied Resources for Correctional Health | 4 Kendall Ln Freeport, ME 04032-1414 | (207) 865-9709 |
| Alternative Services | 30 Tall Pines Dr New Gloucester, ME 04260-4025 | (207) 926-3899 |
| Alternative Services | Huntington Hill Rd Litchfield, ME 04350 | (207) 268-2624 |
| Andl Stephen | 12 High St Lewiston, ME 04240 | (207) 795-5750 |
| Androscoggin Foot Care | 280 Minot Ave Auburn, ME 04210-4867 | (207) 782-2256 |
| Androscoggin Kidney Center | 1100 Minot Ave Auburn, ME 04210-3739 | (207) 795-1315 |
| Annabessacook Veterinary Clinic | 417 Route 135 Monmouth, ME 04259 | (207) 933-2165 |
| Annabessacook Veterinary Clinic | RR 135 Monmouth, ME 04259 | (207) 933-6424 |
| Anonymous HIV Testing & Education | 6 E Chestnut St Augusta, ME 04330 | (207) 621-3793 |
| Aroostook Health Center | Highland Ave Mars Hill, ME 04758 | (207) 768-4915 |