Arleen Chang, MD - Medicare Internal Medicine in Mountain View, CA

Arleen Chang, MD is a medicare enrolled "Internal Medicine" physician in Mountain View, California. She went to University Of California, Irvine, California College Of Medicine and graduated in 1994 and has 30 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Permanente Medical Group Inc and her current practice location is 555 Castro St, Mountain View, California. You can reach out to her office (for appointments etc.) via phone at (650) 903-3000.

Arleen Chang is licensed to practice in California (license number A60478) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1679650501.

Contact Information

Arleen Chang, MD
555 Castro St,
Mountain View, CA 94041-2009
(650) 903-3000
Not Available

Map and Direction




Physician's Profile

Full NameArleen Chang
GenderFemale
SpecialityInternal Medicine
Experience30 Years
Location555 Castro St, Mountain View, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Arleen Chang attended and graduated from University Of California, Irvine, California College Of Medicine in 1994
  NPI Data:
  • NPI Number: 1679650501
  • Provider Enumeration Date: 10/31/2006
  • Last Update Date: 01/03/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1951599844
  • Enrollment ID: I20101220000175

Medical Identifiers

Medical identifiers for Arleen Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679650501NPI-NPPES
00A604780MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A60478 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Arleen Chang allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Arleen Chang is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Arleen Chang, MD
1800 Harrison St Fl 7,
Oakland, CA 94612-3466

Ph: (510) 625-6262
Arleen Chang, MD
555 Castro St,
Mountain View, CA 94041-2009

Ph: (650) 903-3000

Reviews and Comments


Internal Medicine Doctors in Mountain View, CA

Dr. Gayathri Thiru, M.D
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Practice Location: 2490 Hospital Drive, Suite 212, Mountain View, CA 94040
Phone: 408-900-8077    Fax: 844-965-9436
Dr. Shawn Mathew Jacob, MD
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Practice Location: 2500 Grant Rd, Mountain View, CA 94040
Phone: 650-940-7000    
Dr. Vibha Ramaswamy Iyengar, M.D, MPH
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Practice Location: 701 E El Camino Real, Mountain View, CA 94040
Phone: 650-934-7808    
Geoffrey Yoon, M.D.
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Practice Location: 701 E El Camino Real, Mountain View, CA 94040
Phone: 650-404-8300    
Dr. David Alan Reinert, D.O.
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Practice Location: 701 E El Camino Real, Mountain View, CA 94040
Phone: 650-934-7000    
Apurva Marfatia, MD
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Practice Location: 701 E El Camino Real, Medical Staff, Mountain View, CA 94040
Phone: 650-934-7144    
Troy Thoai Lam, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 2500 Grant Rd, Mountain View, CA 94040
Phone: 650-374-0001    Fax: 650-364-3351

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.