DR. JESSICA SHIMING DAI MD
NPI 1811511363
Obstetrics & Gynecology in Vacaville, CA
About Dr. Jessica Shiming Dai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JESSICA SHIMING DAI MD (NPI 1811511363) is an individual obstetrics & gynecology provider in Vacaville, California, licensed in California (A212202) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of Oakland Univ, William Beaumont School Of Medicine (2020).
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
Dr. Jessica Shiming Dai Md 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
3Medicare enrollment records show Jessica Dai reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 1,905 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 2,237 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The University Of Chicago Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95688 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.
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 Jessica Dai's NPI number?
The NPI number for Jessica Dai is 1811511363. It was assigned to this individual provider in the NPPES registry on June 1, 2020.
Where is Jessica Dai located?
Jessica Dai practices at 1 Quality Dr, Vacaville, CA 95688. The listed phone number is (707) 624-4000.
What is Jessica Dai's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Jessica Dai enrolled in Medicare?
Yes. Jessica 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 Jessica Dai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jessica Dai reassigns Medicare benefits to 3 organizations: Endeavor Health Medical Group (Evanston, IL), The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). 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 Jessica Dai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jessica Dai affiliated with any hospitals?
According to CMS data, Jessica Dai is affiliated with The University Of Chicago Medical Center.
When was this NPI record last updated?
The NPPES record for Jessica Dai was last updated on October 5, 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.
# Dr. Jessica Shiming Dai, MD · NPI 1811511363
Obstetrics & Gynecology physician in Vacaville, California. Individual provider, active in the CMS NPPES registry since June 1, 2020.
## Identity
- **NPI:** 1811511363 (Entity type: Individual)
- **Enumerated:** June 1, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A212202 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 QUALITY DR, Vacaville, CA 95688-9494
- **Phone:** (707) 624-4000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Endeavor Health Medical Group (NPI 1497701882, Evanston, IL); The University Of Chicago Medical Center (NPI 1033218128, Chicago, IL); University Of Chicago (NPI 1821048786, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oakland Univ, William Beaumont School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** October 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1811511363) · Data from the CMS NPPES public registry.