MS. BRITTANY MARGARET ASHLOCK MD, PHD, MPH
NPI 1952728099
Hospitalist in Walnut Creek, CA
About Ms. Brittany Margaret Ashlock Md, Phd, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. BRITTANY MARGARET ASHLOCK MD, PHD, MPH (NPI 1952728099) is an individual hospitalist provider in Walnut Creek, California, licensed in California (A139748) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS and is a graduate of University Of Miami, Lm Miller School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses
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
Ms. Brittany Margaret Ashlock Md, Phd, Mph 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 Brittany Ashlock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 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 94553 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Brittany Ashlock's NPI number?
The NPI number for Brittany Ashlock is 1952728099. It was assigned to this individual provider in the NPPES registry on March 26, 2014.
Where is Brittany Ashlock located?
Brittany Ashlock practices at 1425 S. Main St. Kaiser Permanente, Walnut Creek, CA 94553. The listed phone number is (305) 332-1688.
What is Brittany Ashlock's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Brittany Ashlock enrolled in Medicare?
Yes. Brittany Ashlock 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 Brittany Ashlock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brittany Ashlock reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Brittany Ashlock'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 Brittany Ashlock was last updated on February 4, 2022. 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.
# Ms. Brittany Margaret Ashlock, MD, PHD, MPH · NPI 1952728099
Hospitalist physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since March 26, 2014.
## Identity
- **NPI:** 1952728099 (Entity type: Individual)
- **Enumerated:** March 26, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A139748 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1425 S. MAIN ST., KAISER PERMANENTE, Walnut Creek, CA 94553
- **Phone:** (305) 332-1688
## 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:** Permanente Medical Group Inc (NPI 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Miami, Lm Miller School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** February 4, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1952728099) · Data from the CMS NPPES public registry.