1. Home
  2. Directory
  3. California
  4. Davis
  5. Internal Medicine
  6. NPI Profile

DIANE F. DAILEY MD
NPI 1689753725
Internal Medicine in Davis, CA

Active since November 02, 2006PECOS Enrolled
1955 COWELL BLVD, DAVIS, CA 95618(916) 757-7100 Get Directions Write a Review

NPPES record last updated: December 22, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Diane F. Dailey Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANE F. DAILEY MD (NPI 1689753725) is an individual internal medicine provider in Davis, California, licensed in California (G66189) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689753725
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDIANE F. DAILEYCredential: MD
Location Address1955 COWELL BLVDDavis, CA 95618-6325
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Phone(916) 757-7100
Sole ProprietorNo
Enumeration DateNovember 2, 2006
Last NPPES UpdateDecember 22, 2021
✔ NPI 1689753725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G66189
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1955 COWELL BLVD, Davis, CA 95618
Open in Google Maps ↗

Other Identifiers 1

Medicaid00G661890CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane F. Dailey Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Diane Dailey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
40 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000

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 95618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.20 typical visit price
range $60.44 – $180.85
Typical copayment $34.30 (range $15.11 – $45.21)
Most-billed visit code 99204
Established Patient
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

SUZANNE L. BIER MD
Obstetrics & Gynecology
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (916) 757-7100
RODNEY W ROEBUCK OD
Optometrist
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (530) 757-3941
LINDA LEONG LEE PHARM.D.
Pharmacist
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (530) 757-4024
KA THAO MD
Family Medicine
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (530) 757-7100
CAROLYN ALYCE JIANG DO
Family Medicine
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (530) 757-7100
MARK D. HO MD
Internal Medicine
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (916) 757-7100
YVONNE S. OTANI MD
Pediatrics
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (916) 757-7100
JAMES BUCK RPH
Pharmacist
1955 COWELL BLVD
DAVIS, CA 95618
Yolo County (503) 757-4024

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 Diane Dailey's NPI number?

The NPI number for Diane Dailey is 1689753725. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Where is Diane Dailey located?

Diane Dailey practices at 1955 Cowell Blvd, Davis, CA 95618. The listed phone number is (916) 757-7100.

What is Diane Dailey's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Diane Dailey enrolled in Medicare?

Yes. Diane Dailey is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Dailey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Dailey reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, 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 Diane Dailey'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 Diane Dailey was last updated on December 22, 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.