Naohisa Yahagi, MD in Stanford, CA - Medicare Gastroenterology

Naohisa Yahagi, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Stanford, California. He graduated from medical school in 1987 and has 39 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 300 Pasteur Dr, Stanford, California. You can reach out to his office (for appointments etc.) via phone at (650) 723-4000.

Naohisa Yahagi is licensed to practice in California (license number SFP58) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1629916887.

Contact Information

	Naohisa Yahagi, MD
	300 Pasteur Dr, Stanford, CA 94305-2200
	(650) 723-4000
	Not Available

Map and Direction

Physician's Profile

Full Name	Naohisa Yahagi
Gender	Male
Speciality	Gastroenterology
Experience	39 Years
Location	300 Pasteur Dr, Stanford, California
Accepts Medicare Assignments	May be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.

Medical Education and Training:

Naohisa Yahagi graduated from medical school in 1987

NPI Data:

NPI Number: 1629916887
Provider Enumeration Date: 03/23/2026
Last Update Date: 04/20/2026

Medicare PECOS Information:

PECOS PAC ID: 0648746636
Enrollment ID: I20260417000000

Medical Identifiers

Medical identifiers for Naohisa Yahagi such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1629916887	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	SFP58 (California)	Secondary
207RG0100X	Internal Medicine - Gastroenterology	SFP58 (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. Naohisa Yahagi 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
Naohisa Yahagi, MD 300 Pasteur Dr, Stanford, CA 94305-2200 Ph: (650) 723-4000	Naohisa Yahagi, MD 300 Pasteur Dr, Stanford, CA 94305-2200 Ph: (650) 723-4000

Reviews and Comments

Internal Medicine Doctors in Stanford, CA

Prista Charuworn, MD Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 300 Pasteur Dr, Alway Build M211, Mc 5187, Stanford, CA 94305 Phone: 650-723-6661
Yu Kuang Lai, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 300 Pasteur Dr, Stanford, CA 94305 Phone: 650-723-4000
Andrea Lorenze, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 300 Pasteur Drive, Lane 154, Stanford, CA 94305 Phone: 650-723-6661 Fax: 650-498-6205
Audra Horomanski, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 300 Pasteur Dr, Stanford, CA 94305 Phone: 650-723-4000 Fax: 650-498-6205
Meghan Brady Marmor, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 300 Pasteur Dr, Stanford, CA 94305 Phone: 650-723-4000
Dr. Andrew Thai Nguyen, MD Gastroenterology Medicare: May Accept Medicare Assignments Practice Location: 300 Pasteur Dr, Stanford, CA 94305 Phone: 650-723-6661
Lauren Michelle Ulsh, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 300 Pasteur Dr, Stanford, CA 94305 Phone: 650-723-4000

Naohisa Yahagi, MD - Medicare Gastroenterology in Stanford, CA