RAN DAI M.D.
NPI 1184986200
Anesthesiology in Walnut Creek, CA
About Ran Dai M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RAN DAI M.D. (NPI 1184986200) is an individual anesthesiology provider in Walnut Creek, California, licensed in California (A152215) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in Palm Beach Gardens, and is a graduate of Tufts University School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Ran Dai 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 Reassignments
4Medicare enrollment records show Ran Dai reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 833 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
San Ramon, CA 94583
- Reassigned Medicare billing, California enrollment
- 176 clinicians in this Medicare group
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 Ran Dai's NPI number?
The NPI number for Ran Dai is 1184986200. It was assigned to this individual provider in the NPPES registry on June 14, 2012.
Where is Ran Dai located?
Ran Dai practices at 2175 N California Blvd Ste 425, Walnut Creek, CA 94596. The listed phone number is (925) 543-0140.
What is Ran Dai's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ran Dai enrolled in Medicare?
Yes. Ran Dai 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 organizations bill Medicare for Ran Dai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ran Dai reassigns Medicare benefits to 4 organizations: Cep America - Anesthesia, PC (Walnut Creek, CA), John Muir Trauma Physicians Billing Service (Walnut Creek, CA), Premier Anesthesia Of California, PC (San Ramon, CA) and Permanente Medical Group Inc (Richmond, CA). Each 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 Ran Dai'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 Ran Dai was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.
# Ran Dai, M.D. · NPI 1184986200
Anesthesiology physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since June 14, 2012.
## Identity
- **NPI:** 1184986200 (Entity type: Individual)
- **Enumerated:** June 14, 2012
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A152215 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2175 N CALIFORNIA BLVD STE 425, Walnut Creek, CA 94596-7164
- **Phone:** (925) 543-0140
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Cep America - Anesthesia, PC (NPI 1790401438, Walnut Creek, CA); John Muir Trauma Physicians Billing Service (NPI 1093864837, Walnut Creek, CA); Premier Anesthesia Of California, PC (NPI 1770691859, San Ramon, CA); Permanente Medical Group Inc (NPI 1235226531, Richmond, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** October 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184986200) · Data from the CMS NPPES public registry.