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PATRICIA HIEP-CHAN T. PHAN-UNDERHILL DDS
NPI 1346438645
Dentist in Los Gatos, CA

Active since October 11, 2007Opted out of Medicare · through Mar 9, 2028
14543 S BASCOM AVE, LOS GATOS, CA 95032(408) 358-5115 Get Directions Write a Review

NPPES record last updated: November 10, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Patricia Hiep-chan T. Phan-underhill Dds NPPES

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

PATRICIA HIEP-CHAN T. PHAN-UNDERHILL DDS (NPI 1346438645) is an individual dentist in Los Gatos, California, licensed in California (48845) and active in the NPI registry since October 2007. She has opted out of Medicare through March 9, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1346438645
Entity TypeIndividualFemale
Primary Taxonomy122300000X
Provider Legal NamePATRICIA HIEP-CHAN T. PHAN-UNDERHILLCredential: DDS
Location Address14543 S BASCOM AVELos Gatos, CA 95032-2003
Mailing Address14543 S. Bascom AvenueLos Gatos, CA 95032-8000 · (408) 358-5115
Phone(408) 358-5115
Sole ProprietorNo
Enumeration DateOctober 11, 2007
Last NPPES UpdateNovember 10, 2009
✔ NPI 1346438645 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in CA · 48845
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
14543 S BASCOM AVE, Los Gatos, CA 95032
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

Patricia Hiep-chan T. Phan-underhill Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from March 9, 2016 through March 9, 2028.

Opt-Out Effective DateMarch 9, 2016
Opt-Out In Effect ThroughMarch 9, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95032 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. EDWARD CHRISTIAN LARSEN D.D.S.
Dentist (General Practice)
14543 S BASCOM AVE
LOS GATOS, CA 95032
Santa Clara County (408) 358-5115

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 Patricia Hiep-chan Phan-underhill's NPI number?

The NPI number for Patricia Hiep-chan Phan-underhill is 1346438645. It was assigned to this individual provider in the NPPES registry on October 11, 2007.

Where is Patricia Hiep-chan Phan-underhill located?

Patricia Hiep-chan Phan-underhill practices at 14543 S Bascom Ave, Los Gatos, CA 95032. The listed phone number is (408) 358-5115.

What is Patricia Hiep-chan Phan-underhill's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Patricia Hiep-chan Phan-underhill enrolled in Medicare?

No. Patricia Hiep-chan Phan-underhill has opted out of Medicare through March 9, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Patricia Hiep-chan Phan-underhill accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Patricia Hiep-chan Phan-underhill 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.

When was this NPI record last updated?

The NPPES record for Patricia Hiep-chan Phan-underhill was last updated on November 10, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.