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GREG MATTSON MD INC
NPI 1669746897
Family Medicine in La Jolla, CA

Active since March 06, 2012
210 COAST BLVD, LA JOLLA, CA 92037(858) 454-6141(858) 454-2310 Get Directions Write a Review

NPPES record last updated: March 6, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Greg Mattson Md Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREG MATTSON MD INC (NPI 1669746897) is a healthcare organization registered as a family medicine in La Jolla, California and active in the NPI registry since March 2012. The organization lists Gregory Capp Mattson, President, as its authorized official.

NPPES Registry Identity

NPI1669746897
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameGREG MATTSON MD INC
Location Address210 COAST BLVDLa Jolla, CA 92037-4609
Mailing Address210 Coast BlvdLa Jolla, CA 92037-4609 · (858) 454-6141 · Fax (858) 454-2310
Phone(858) 454-6141
Fax(858) 454-2310
Organization SubpartNo
Authorized OfficialGregory Capp MattsonPresident · (858) 454-2716
Enumeration DateMarch 6, 2012
✔ NPI 1669746897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · G32164
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
210 COAST BLVD, La Jolla, CA 92037
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Greg Mattson Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20120315000194Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Greg Mattson MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gregory Mattson, M. D.
General Practice
NPI 1922155282
210 COAST BLVD
La Jolla, CA 92037
(858) 454-6141
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Greg Mattson MD Inc's NPI number?

The NPI number for Greg Mattson MD Inc is 1669746897. It was assigned to this organization in the NPPES registry on March 6, 2012.

Where is Greg Mattson MD Inc located?

Greg Mattson MD Inc is located at 210 Coast Blvd, La Jolla, CA 92037. The listed phone number is (858) 454-6141.

What is Greg Mattson MD Inc's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Greg Mattson MD Inc enrolled in Medicare?

Yes. Greg Mattson MD Inc is registered in the Medicare PECOS enrollment system.

When is Greg Mattson MD Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Greg Mattson MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Practice) reassigns their Medicare billing to Greg Mattson MD Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Greg Mattson MD Inc was last updated on March 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.