Dr. Gregory Mack M.D.
About this NPIWhat this record shows.
NPI 1528169513 is registered to Dr. Gregory Mack M.D., a Surgery of the Hand (Surgery) Physician practising at 8008 Frost St, Suite 403 in San Diego, California. Surgery of the Hand (Surgery) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Gregory Mack M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
This record carries 2 secondary identifiers beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 53 Surgery of the Hand (Surgery) Physician providers on file in California.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- W19719· Issued by MEDICARE PTAN
Medicaid
Source: NPPES public registry.
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.
Practitioner
- I20031112000628Hand SurgeryCA
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 Dr. Gregory Mack M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Gregory Mack M.D. directly at (858) 715-9200.
Frequently asked
Yes. NPI 1528169513 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Surgery of the Hand (Surgery) 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 (858) 715-9200.
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. Dr. Gregory Mack M.D. is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 53 Surgery of the Hand (Surgery) Physician providers are registered in California, and Dr. Gregory Mack M.D. is one of them. The figure refreshes each month from the federal source.