Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Karl Beau Fischer Jr., DC
Chiropractor in Chelmsford, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922075795
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Registry record
Entity type Individual (Type 1)
Name Dr. Karl Beau Fischer Jr.
Credential DC
Sex Male
Practice address 6 Boston Rd, Suite 107, Chelmsford, MA, 01824
Phone (978) 250-1500
Fax (978) 250-1500
Enumeration date Mar 1, 2006
Last updated in NPPES Feb 10, 2014
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1609696 | Medicaid | MA | - |
| Y35960 | Other | MA | BLUE CROSS BLUE SHIELD |
| 168991 | Other | NH | HEALTHSOURCE OF NH |
| 4400234 | Other | MA | UNITED HEALTHCARE |
| 720557 | Other | MA | TUFTS MEDICARE PREFERRED |
| 7250557 | Other | - | TUFTS |
| 350054567 | Other | MA | RAILROAD MEDICARE |
| 35273 | Other | - | HARVARD PILGRIM HEALTHCAR |
| 87726 | Other | MA | AETNA |
| B20317101 | Other | MA | CIGNA |
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
Where does Karl Fischer practice?
The practice location on file with NPPES is in Chelmsford, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karl Fischer?
The National Provider Identifier (NPI) for Karl Fischer is 1922075795, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-10.