Gretl Chi-wing Lam, MD in Sunnyvale, CA

Gretl Chi-wing Lam, MD is a medicare enrolled "Internal Medicine - Hospice And Palliative Medicine" physician in Sunnyvale, California. Her current practice location is 301 Old San Francisco Rd, Sunnyvale, California. You can reach out to her office (for appointments etc.) via phone at (408) 730-2860.

Gretl Chi-wing Lam is licensed to practice in California (license number A203145) 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 1184159253.

Contact Information

	Gretl Chi-wing Lam, MD
	301 Old San Francisco Rd, Sunnyvale, CA 94086-6386
	(408) 730-2860
	Not Available

Map and Direction

Physician's Profile

Full Name	Gretl Chi-wing Lam
Gender	Female
Speciality
Experience	Years
Location	301 Old San Francisco Rd, Sunnyvale, California
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Gretl Chi-wing Lam attended and graduated from in

NPI Data:

NPI Number: 1184159253
Provider Enumeration Date: 04/26/2017
Last Update Date: 09/22/2025

Medicare PECOS Information:

PECOS PAC ID:
Enrollment ID:

Medical Identifiers

Medical identifiers for Gretl Chi-wing Lam such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1184159253	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RH0002X	Internal Medicine - Hospice And Palliative Medicine	A203145 (California)	Primary

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. Gretl Chi-wing Lam 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
Gretl Chi-wing Lam, MD Po Box 276950, Sacramento, CA 95827-6950 Ph: (507) 284-2511	Gretl Chi-wing Lam, MD 301 Old San Francisco Rd, Sunnyvale, CA 94086-6386 Ph: (408) 730-2860

Reviews and Comments

Internal Medicine Doctors in Sunnyvale, CA

Dr. Tan Michael Nguyen, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 301 Old San Francisco Rd, Sunnyvale, CA 94086 Phone: 408-730-4360
Aisha Amin, Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 301 Old San Francisco Rd, Sunnyvale, CA 94086 Phone: 718-334-2488
Nora Woiwode, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 401 Old San Francisco Rd, Sunnyvale, CA 94086 Phone: 650-730-4360
Su-may Lee, MD Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 1299 Oakmead Pkwy, Sunnyvale, CA 94085 Phone: 408-520-4510
Fan Mo, DO Internal Medicine Medicare: Medicare Enrolled Practice Location: 1309 S Mary Ave, Sunnyvale, CA 94087 Phone: 408-523-3460
Robina Yu-chu Moen, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 401 Old San Francisco Rd, Sunnyvale, CA 94086 Phone: 408-730-4360
Leon Cheng, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 401 Old San Francisco Rd, Sunnyvale, CA 94086 Phone: 408-730-4262

Gretl Chi-wing Lam, MD - Medicare in Sunnyvale, CA