TANGEL CHANG
NPI 1306194915
Radiology - Radiation Oncology in Los Gatos, CA

Active since August 29, 2012PECOS EnrolledAccepts Medicare Assignment
15400 NATIONAL AVE STE 100, LOS GATOS, CA 95032(408) 358-8400(408) 358-2793 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 13, 2026, Oct 12, 2018, Aug 17, 2018 and 2 more (5 updates tracked since 2016).

About Tangel Chang NPPES

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

TANGEL CHANG (NPI 1306194915) is an individual radiation oncology provider in Los Gatos, California, licensed in California (20A13213) and active in the NPI registry since August 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1306194915
Entity TypeIndividualFemale
Primary Taxonomy2085R0001X
Provider Legal NameTANGEL CHANG
Location Address15400 NATIONAL AVE STE 100Los Gatos, CA 95032-2433
Mailing Address5 Harris Ct Ste 201Monterey, CA 93940-5750
Fax(408) 358-2793
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateAugust 29, 2012
Last NPPES UpdateJuly 13, 20265 updates tracked since enumeration
NPPES CertifiedJuly 13, 2026
✔ NPI 1306194915 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Licenses✔ Licensed in CA · 20A13213✔ Licensed in IA · 1306194915✔ Licensed in OH · 34.012242
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
15400 NATIONAL AVE STE 100, Los Gatos, CA 95032

Other Identifiers 2

Medicaid0196763OH
Medicaid1306194915CA

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

Tangel Chang 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.

PECOS PAC ID6608092010
PECOS Enrollment IDI20180301002201
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 Reassignments

9

Medicare enrollment records show Tangel Chang reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Acute Care Hospital
23625 HOLMAN HWY
Monterey, CA 93940
  • Reassigned Medicare billing, California enrollment
  • 245 clinicians in this Medicare group
Hematology & Oncology
5 HARRIS CT, BLDG T, STE. 201
Monterey, CA 93940
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
Multi-Specialty
9390 BIG HORN BLVD
Elk Grove, CA 95758
  • Reassigned Medicare billing, California enrollment
  • 918 clinicians in this Medicare group
Dermatology
1745 CREEKSIDE DR
Folsom, CA 95630
  • Reassigned Medicare billing, California enrollment
  • 10 clinicians in this Medicare group
Dermatology
1340 W HERNDON AVE, STE 101
Fresno, CA 93711
  • Reassigned Medicare billing, California enrollment
  • 11 clinicians in this Medicare group
Radiation Oncology
20341 SW BIRCH ST STE 330
Newport Beach, CA 92660
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Stephen William Doggett MD PA
  • 10 clinicians in this Medicare group
Rehabilitation Unit
1 MEDICAL CENTER BLVD
Cookeville, TN 38501
  • Reassigned Medicare billing, Tennessee enrollment
  • 151 clinicians in this Medicare group
Radiation Oncology
2076 HWY 42 W, SUITE 120
Clayton, NC 27520
  • Reassigned Medicare billing, North Carolina enrollment
  • 33 clinicians in this Medicare group
Radiation Oncology
514 N BRIGHTLEAF BLVD, SUITE 1200
Smithfield, NC 27577
  • Reassigned Medicare billing, North Carolina enrollment
  • 32 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.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014
CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.
248 services25 patients
Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
68 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
63 services60 patients
Design and construction of complex radiation treatment device 77334
The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.
36 services14 patients
Ct guidance for insertion of radiation therapy fields 77014
CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.
30 services11 patients
Radiation treatment management, 5 treatment sessions 77427
Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.
26 services16 patients

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
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
80%25 patients4/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
100%25 patients5/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
60%25 patients3/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
48%25 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES

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

Radiology (Radiation Oncology)
15400 NATIONAL AVE STE 100
LOS GATOS, CA 95032

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 Tangel Chang's NPI number?

The NPI number for Tangel Chang is 1306194915. It was assigned to this individual provider in the NPPES registry on August 29, 2012.

Where is Tangel Chang located?

Tangel Chang practices at 15400 National Ave Ste 100, Los Gatos, CA 95032. The listed phone number is (408) 358-8400.

What is Tangel Chang's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Tangel Chang enrolled in Medicare?

Yes. Tangel Chang 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 Tangel Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tangel Chang reassigns Medicare benefits to 9 organizations: Community Hospital Of The Monterey Peninsula (Monterey, CA), Monterey Bay Oncology A Medical Corporation (Monterey, CA), Regents Of The University Of California (Elk Grove, CA), Folsom Dermatology (Folsom, CA), Minarets Medical Group, Inc. (Fresno, CA) and 4 more organizations, listed in the Medicare section above. 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 Tangel Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tangel Chang accept?

Health plans from Blue Cross and Blue Shield of NC, CareSource and UnitedHealthcare list Tangel Chang 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 Tangel Chang was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.