Ryan Chang, in San Mateo, CA - Medicare Internal Medicine

Ryan Chang, is a medicare enrolled "Internal Medicine - Medical Oncology" physician in San Mateo, California. His current practice location is 218 De Anza Blvd, San Mateo, California. You can reach out to his office (for appointments etc.) via phone at (415) 514-7520.

Ryan Chang is licensed to practice in California (license number A179941) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1164985263.

Contact Information

	Ryan Chang,
	218 De Anza Blvd, San Mateo, CA 94402-3913
	(415) 514-7520
	Not Available

Map and Direction

Physician's Profile

Full Name	Ryan Chang
Gender	Male
Speciality	Internal Medicine - Medical Oncology
Location	218 De Anza Blvd, San Mateo, California
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1164985263
Provider Enumeration Date: 04/08/2019
Last Update Date: 08/28/2024

Medicare PECOS Information:

PECOS PAC ID: 2466849237
Enrollment ID: I20241010000972

Medical Identifiers

Medical identifiers for Ryan Chang such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1164985263	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RX0202X	Internal Medicine - Medical Oncology	A179941 (California)	Primary

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. Ryan Chang allows following entities to bill medicare on his behalf.

Entity Name	Regents Of The University Of California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1760552343 PECOS PAC ID: 4284547274 Enrollment ID: O20031106000389

Entity Name	University Of California San Francisco
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1861578973 PECOS PAC ID: 4486567229 Enrollment ID: O20031212000897

Entity Name	Ucsf Medical Group Business Services
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1477624104 PECOS PAC ID: 3779497870 Enrollment ID: O20040622001513

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. Ryan 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 Address	Practice Location Address
Ryan Chang, 1 Hawthorne St Unit 20f, San Francisco, CA 94105-3983 Ph: (415) 937-3662	Ryan Chang, 218 De Anza Blvd, San Mateo, CA 94402-3913 Ph: (415) 514-7520

Reviews and Comments

Internal Medicine Doctors in San Mateo, CA

Kent Marc-josef Adler, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 218 De Anza Blvd, San Mateo, CA 94402 Phone: 650-341-9131 Fax: 650-341-9135
Stanley Cheung-kit Hui, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 222 W 39th Ave, San Mateo, CA 94403 Phone: 650-573-2222
Dr. Daniel Rengstorff, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 218 De Anza Blvd, San Mateo, CA 94402 Phone: 650-341-9131
Lisa Gooze, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 222 W 39th Ave, San Mateo, CA 94403 Phone: 650-573-2222
Vivian Levy, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 222 W 39th Ave, San Mateo, CA 94403 Phone: 650-573-2222
Dr. Tina Au, Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 222 W 39th Ave, San Mateo, CA 94403 Phone: 650-573-3702
Julian Hardy Mclain, MD Internal Medicine Medicare: Medicare Enrolled Practice Location: 50 S San Mateo Dr, San Mateo, CA 94401 Phone: 650-696-5420

Ryan Chang, - Medicare Internal Medicine in San Mateo, CA