Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark L Schrank, MD
Internal Medicine Physician in Worcester, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801870258
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 042472266 | Other | - | HEALTHCARE VALUE MNGMENT |
| 27015 | Other | - | CHILDRENS MED SECURITY PL |
| AA1247 | Other | - | HARVARD PILGRIM HEALTHCAR |
| J04376 | Other | - | BLUE SHIELD HMO BLUE |
| 110170358 | Other | - | RAILROAD MEDICARE |
| 6389589 | Other | - | CIGNA HEALTH PLAN |
| 0401699 | Other | - | EVERCARE |
| 3099911 | Other | - | MEDICAID/WELFARE |
| 9900099 | Other | - | FALLON COMMUNITY HLTH PL |
| 042472266 | Other | - | PRIVATE HEALTHCARE SYSTEM |
| J04376 | Other | - | BLUE CARE ELECT |
| 7017326 | Other | - | AETNA/US HEALTHCARE |
| J04376 | Other | - | BLUE SHIELD INDEMNITY |
| 27015 | Other | - | HEALTHY START |
| 784187 | Other | - | MVP HEALTH CARE |
| 925677 | Other | - | FIRST HEALTH |
| J04376 | Other | - | MEDICARE B |
| 042472266 | Other | - | ONE HEALTH PLAN |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-14.