GRANT BARRIE NEIFELD M.D.
NPI 1215900683
Family Medicine - Sports Medicine in La Mesa, CA
About Grant Barrie Neifeld M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRANT BARRIE NEIFELD M.D. (NPI 1215900683) is an individual sports medicine provider in La Mesa, California, licensed in California (A49419) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Grant Barrie Neifeld M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Grant Neifeld reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91942 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LA MESA, CA 91942
LA MESA, CA 91942
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 Grant Neifeld's NPI number?
The NPI number for Grant Neifeld is 1215900683. It was assigned to this individual provider in the NPPES registry on February 8, 2006.
Where is Grant Neifeld located?
Grant Neifeld practices at 8881 Fletcher Pkwy, La Mesa, CA 91942. The listed phone number is (619) 460-3311.
What is Grant Neifeld's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Sports Medicine, with taxonomy code 207QS0010X.
Is Grant Neifeld enrolled in Medicare?
Yes. Grant Neifeld is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Grant Neifeld's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Neifeld reassigns Medicare benefits to Southern California Permanente Medical Group (San Diego, CA). The 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 Grant Neifeld's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Grant Neifeld was last updated on December 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Grant Barrie Neifeld, M.D. · NPI 1215900683
Sports Medicine physician in La Mesa, California. Individual provider, active in the CMS NPPES registry since February 8, 2006.
## Identity
- **NPI:** 1215900683 (Entity type: Individual)
- **Enumerated:** February 8, 2006
- **Primary specialty:** Family Medicine - Sports Medicine · taxonomy 207QS0010X
- **State license:** A49419 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 8881 FLETCHER PKWY, La Mesa, CA 91942-3134
- **Phone:** (619) 460-3311
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1976
## Record status
- **NPPES last updated:** December 8, 2021
- **Other identifiers:** Medicaid ZZZ36915Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1215900683) · Data from the CMS NPPES public registry.