Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark Lee Farbman, OD
Optometrist in Frederick, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1952401234
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark Lee Farbman
Credential OD
Sex Male
Practice address 1560 Opossumtown Pike, Frederick, MD, 21702
Phone (301) 662-8866
Fax (301) 293-6133
Enumeration date Sep 25, 2006
Last updated in NPPES Jul 19, 2007
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4290491 | Other | - | AETNA |
| 60645801 | Other | - | CAREFIRST BCBS |
| 484151 | Other | - | AETNA-HMO |
| 60645801 | Other | - | BLUE CROSS BLUE SHIELD |
| 0001 | Other | - | BCBS FEP |
| 34510 | Other | - | ONENET |
| 34510 | Other | - | MDIPA |
| 34510 | Other | - | OPTIMUM CHOICE |
| 34510 | Other | - | ALLIANCE |
| 34510 | Other | - | MAMSI/UNITED HEALTHCARE |
| 620427 | Other | - | UNICARE |
| 620427 | Other | - | HEALTHLINK/NCPPO |
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 Mark Farbman?
The National Provider Identifier (NPI) for Mark Farbman is 1952401234, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Farbman practice?
The practice location on file with NPPES is in Frederick, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-19.