CAITLIN DELANEY HAMILTON MD
NPI 1669000501
Obstetrics & Gynecology in Emeryville, CA
About Caitlin Delaney Hamilton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAITLIN DELANEY HAMILTON MD (NPI 1669000501) is an individual obstetrics & gynecology provider in Emeryville, California, licensed in California (A207279) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Virginia Mason Medical Center, and maintains a secondary practice location in Seattle.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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
Caitlin Delaney Hamilton 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
4Medicare enrollment records show Caitlin Hamilton reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Emeryville, CA 94608
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Newark, CA 94560
- Reassigned Medicare billing, California enrollment
- 435 clinicians in this Medicare group
Renton, WA 98055
- Reassigned Medicare billing, Washington enrollment
- 689 clinicians in this Medicare group
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 1,021 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.
Virginia Mason Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94608 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 2
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 Caitlin Hamilton's NPI number?
The NPI number for Caitlin Hamilton is 1669000501. It was assigned to this individual provider in the NPPES registry on March 27, 2020.
Where is Caitlin Hamilton located?
Caitlin Hamilton practices at 6121 Hollis St Ste 800, Emeryville, CA 94608. The listed phone number is (510) 237-2802.
What is Caitlin Hamilton's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Caitlin Hamilton enrolled in Medicare?
Yes. Caitlin Hamilton 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 Caitlin Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caitlin Hamilton reassigns Medicare benefits to 4 organizations: Stanford Health Care (Emeryville, CA), University Healthcare Alliance (Newark, CA), Valley Medical Group-Renton (Renton, WA) and Virginia Mason Medical Center (Seattle, WA). 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 Caitlin Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Caitlin Hamilton accept?
Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Caitlin Hamilton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Caitlin Hamilton affiliated with any hospitals?
According to CMS data, Caitlin Hamilton is affiliated with Virginia Mason Medical Center.
When was this NPI record last updated?
The NPPES record for Caitlin Hamilton was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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.
# Caitlin Delaney Hamilton, MD · NPI 1669000501
Obstetrics & Gynecology physician in Emeryville, California. Individual provider, active in the CMS NPPES registry since March 27, 2020.
## Identity
- **NPI:** 1669000501 (Entity type: Individual)
- **Enumerated:** March 27, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A207279 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6121 HOLLIS ST STE 800, Emeryville, CA 94608-2078
- **Phone:** (510) 237-2802
## 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): Stanford Health Care (NPI 1275076325, Emeryville, CA); University Healthcare Alliance (NPI 1760531198, Newark, CA); Valley Medical Group-Renton (NPI 1619209574, Renton, WA); Virginia Mason Medical Center (NPI 1003970989, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** September 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1669000501) · Data from the CMS NPPES public registry.