Mark Cohen M.D.
About this NPIWhat this record shows.
NPI 1194845271 is registered to Mark Cohen M.D., a Ophthalmology Physician practising at 20046 Lake Chabot Rd in Castro Valley, California. Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mark Cohen M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Order and Referring Only
- I20151125001185OphthalmologyCA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Mark Cohen M.D. accepts. To confirm in-network status with your specific health plan, contact Mark Cohen M.D. directly at (510) 881-8823.
Frequently asked
Yes. NPI 1194845271 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (510) 881-8823.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Mark Cohen M.D. is a Type-1 individual NPI.