Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mary M Collins, M.D.
Surgery Physician in Ellsworth, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649222126
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Registry record
Entity type Individual (Type 1)
Name Dr. Mary M Collins
Credential M.D.
Sex Female
Practice address 50 Union St, Suite 2300, Ellsworth, ME, 04605
Phone (207) 664-5642
Fax (207) 664-5664
Enumeration date May 16, 2006
Last updated in NPPES Mar 18, 2020
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 218350099 | Medicaid | ME | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Mary Collins?
The National Provider Identifier (NPI) for Mary Collins is 1649222126, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Collins practice?
The practice location on file with NPPES is in Ellsworth, ME. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jeffrey Graham Urology Physician · Ellsworth, ME NPI 1508862020 John Frankland Anesthesiology Physician · Ellsworth, ME NPI 1962408377 Coastal Anesthesia, PA Anesthesiology Physician · Ellsworth, ME NPI 1134125446 Thomas Oliver Urology Physician · Ellsworth, ME NPI 1477534808 Mary Talley Certified Registered Nurse Anesthetist · Ellsworth, ME NPI 1962485110 Elizabeth Laverack Internal Medicine Physician · Ellsworth, ME NPI 1053391300 Maine Coast Regional Health Facilities General Acute Care Hospital · Ellsworth, ME NPI 1740249739 Judith Dunipace Pain Medicine (Anesthesiology) Physician · Ellsworth, ME NPI 1073575650
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-18.