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DR. PENELOPE ANNE WESTNEY M.D.
NPI 1528164175
Pediatrics in Vacaville, CA

Active since September 14, 2006PECOS Enrolled
3700 VACA VALLEY PKWY, VACAVILLE, CA 95688(707) 453-5197 Get Directions Write a Review

NPPES record last updated: December 13, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Penelope Anne Westney M.d. NPPES

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

DR. PENELOPE ANNE WESTNEY M.D. (NPI 1528164175) is an individual pediatrics provider in Vacaville, California, licensed in California (A71034) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1528164175
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. PENELOPE ANNE WESTNEYCredential: M.D.
Location Address3700 VACA VALLEY PKWYVacaville, CA 95688-9430
Mailing Address930 Snow DrMartinez, CA 94553-4716 · (925) 229-2565
Phone(707) 453-5197
Sole ProprietorNo
Enumeration DateSeptember 14, 2006
Last NPPES UpdateDecember 13, 2021
✔ NPI 1528164175 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A71034
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
3700 VACA VALLEY PKWY, Vacaville, CA 95688
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Penelope Anne Westney M.d. 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 Penelope Westney reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
25 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 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.

New Patient
$98.85 typical visit price
range $65.02 – $191.95
Typical copayment $24.71 (range $16.25 – $47.98)
Most-billed visit code 99203
Established Patient
$113.05 typical visit price
range $21.86 – $157.69
Typical copayment $28.26 (range $5.46 – $39.42)
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.

DR. MARIA MARTHA GALLAGHER PHARM D
Pharmacist
3700 VACA VALLEY PKWY
VACAVILLE, CA 95688
Solano County (707) 453-5111
KATHRYN VERONICA TESSMER MFT
Marriage & Family Therapist
3700 VACA VALLEY PKWY
VACAVILLE, CA 95688
Solano County (707) 453-5921
DR. CHARLES QING HUANG M.D.
Ophthalmology
3700 VACA VALLEY PKWY, KAISER PERMANENTE OPHTHALMOLOGY DEPARTMENT
VACAVILLE, CA 95688
Solano County (707) 453-5600
CHRISTINE ROBERTSON MFT
Marriage & Family Therapist
3700 VACA VALLEY PKWY
VACAVILLE, CA 95688
Solano County (707) 453-5055
DR. KAREN LEE SPEDOWFSKI PH.D.
Health Maintenance Organization
3700 VACA VALLEY PKWY, KAISER PERMANENTE, CDS, SECOND FLOOR
VACAVILLE, CA 95688
Solano County (707) 453-5470
MS. SUSAN EFFORD KNIGHT
Social Worker (Clinical)
3700 VACA VALLEY PKWY, MEDICINE 3
VACAVILLE, CA 95688
Solano County (707) 453-5477
JOANNE EUNJOO PAEK M.D.
Obstetrics & Gynecology (Reproductive Endocrinology)
3700 VACA VALLEY PKWY
VACAVILLE, CA 95688
Solano County (707) 453-5000
DR. CHRISTOPHER TENNYSON EDD
Marriage & Family Therapist
3700 VACA VALLEY PKWY, PSYCHIATRY
VACAVILLE, CA 95688
Solano County (707) 453-5482

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 Penelope Westney's NPI number?

The NPI number for Penelope Westney is 1528164175. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is Penelope Westney located?

Penelope Westney practices at 3700 Vaca Valley Pkwy, Vacaville, CA 95688. The listed phone number is (707) 453-5197.

What is Penelope Westney's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Penelope Westney enrolled in Medicare?

Yes. Penelope Westney is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Penelope Westney's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Penelope Westney 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 Penelope Westney'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 Penelope Westney was last updated on December 13, 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.