Dr. Mark S Loewen, M.D.
Dr. Mark S Loewen is a Surgery Physician provider (Surgery) practicing in Hyannis, MA, registered in the NPPES registry with NPI 1295747319 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1295747319 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark S Loewen |
| Credential | M.D. |
| Sex | Male |
| Practice address | 40 LEWIS BAY RD, Hyannis, MA, 02601 |
| Phone | 5087750800 |
| Fax | 5087718565 |
| Enumeration date | 2006-08-13 |
| Last updated in NPPES | 2008-09-23 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | 231062 | MA |
| 174400000X | Specialist | Secondary | 231062 | MA |
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 |
|---|---|---|---|
| P00427689 | Other | — | RAILROAD MEDICARE |
| 2713608 | Other | — | UNITEDHEALTHCARE |
| AA82270 | Other | — | HPHC |
| J41321 | Other | MA | BC/BS |
| 2133750 | Medicaid | MA | — |
| 1617292 | Other | — | CIGNA |
| 496072 | Other | MA | TUFTS |
Copy-ready billing details
Provider: Mark Loewen, M.D. NPI: 1295747319 Taxonomy: 208600000X (Surgery Physician) Address: 40 LEWIS BAY RD, Hyannis, MA, 02601
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1316984420 | Jill Oxley | Individual | Surgery Physician | Hyannis, MA |
| 1770527186 | Richard Lewis | Individual | Surgery Physician | Hyannis, MA |
Verify this record
Cross-check NPI 1295747319 against the authoritative CMS record: view Dr. Mark S Loewen on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
Is NPI 1295747319 active?
How do I verify Mark Loewen's NPI record?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-09-23.