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About this NPIWhat this record shows.
NPI 1124119623 is registered to Dr. Mark Lollar MD, a Obstetrics & Gynecology practising at 5201 Norris Canyon Rd, #310 in San Ramon, California. Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions. Dr. Mark Lollar MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Mark Lollar MD accepts. To confirm in-network status with your specific health plan, contact Dr. Mark Lollar MD directly at (925) 327-1500.
Frequently asked
Yes. NPI 1124119623 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions.
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 (925) 327-1500.
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. Mark Lollar MD is a Type-1 individual NPI.
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