Active NPI
Mark J Sterling, M.D.
- Gastroenterology Physician
- Lewiston, ME
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- MD30810
- Practice address
- 300 Main St
Lewiston, ME 04240-7041 - Phone
- (207) 795-0111
- NPI assigned
- Dec 15, 2005
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | MD30810 | ME | Primary |
| Gastroenterology Physician | 207RG0100X | 78918 | MA |
Addresses
Primary practice location
300 Main St
Lewiston, ME 04240-7041
Mailing address
23 Mayo Rd
Wellesley, MA 02482-1036
Phone (781) 859-7989
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 110080601A | Medicaid | MA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- New York Medical College, 1991
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
725 N St
Pittsfield, MA 01201-4109
Phone (413) 447-2695
725 N Street Berkshire OB/GYN of
Mbu
Pittsfield, MA 01201-4109
Phone (413) 499-8570
777 N St
Suite 207
Pittsfield, MA 01201-4123
Phone (413) 499-8510
780 S Main St
Suite 2
Great Barrington, MA 01230-2149
Phone (413) 447-2498
Hospital & facility affiliations
- Berkshire Medical Center
- North Adams Regional Hospital Corporation
- Fairview Hospital
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 69 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 219 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- HHS exclusion list flag
- Flagged The directory lists this NPI on an HHS exclusion list.
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 78918 | MA | MD | Gastroenterology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hallmark Health Medical Associates Inc | Gastroenterology | Current | Accepting new patients |
| Fairview Hospital | Current | Accepting new patients | |
| Berkshire Faculty Services Inc | Current | Accepting new patients |
Locations
800 Washington St
Boston, MA 02111
Phone (617) 636-4800
780 S Main St
Ste 2
Gt Barrington, MA 01230
Phone (413) 447-2498
170 Governors Ave
Medford, MA 02155
Phone (781) 306-6000
725 North St
Pittsfield, MA 01201
Phone (413) 447-2839
425 Revere St
Revere, MA 02151
Phone (781) 286-1313
51 Montvale Ave
Stoneham, MA 02180
Phone (781) 213-5200
Interoperability endpoints
- marksterling@bfs.medalliesdirect.net
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Multi-Specialty Clinic/Center
- Pittsfield, MA
- NPI 1548212939
-
- Family Medicine Physician
- Medford, MA
- NPI 1770563900
Gastroenterology
-
- Rural Health Clinic/Center
- Great Barrington, MA
- NPI 1881252286
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Pittsfield, MA
- NPI 1295765261
-
- Critical Access Hospital
- Great Barrington, MA
- NPI 1730112251
-
- Critical Access Hospital
- North Adams, MA
- NPI 1437839669
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1134604800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785369600000",
"number": "1306822069",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "23 MAYO RD",
"city": "WELLESLEY",
"state": "MA",
"postal_code": "024821036",
"telephone_number": "781-859-7989"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "300 MAIN ST",
"city": "LEWISTON",
"state": "ME",
"postal_code": "042407041",
"telephone_number": "207-795-0111"
}
],
"practiceLocations": [],
"basic": {
"last_name": "STERLING",
"first_name": "MARK",
"middle_name": "J",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-12-15",
"last_updated": "2026-07-30",
"certification_date": "2026-07-30",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "ME",
"license": "MD30810",
"primary": true
},
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "MA",
"license": "78918",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "110080601A",
"state": "MA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Lewiston, ME
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.