Robert C Day, MD in Irvine, CA - Medicare Obstetrics/gynecology

Robert C Day, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Irvine, California. He went to University Of Massachusetts Medical School and graduated in 2014 and has 12 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Hoag Clinic and his current practice location is 16305 Sand Canyon Ave Ste 225, Irvine, California. You can reach out to his office (for appointments etc.) via phone at (949) 763-7451.

Robert C Day is licensed to practice in California (license number A139689) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1841618634.

Contact Information

	Robert C Day, MD
	16305 Sand Canyon Ave Ste 225, Irvine, CA 92618-3795
	(949) 763-7451
	Not Available

Map and Direction

Physician's Profile

Full Name	Robert C Day
Gender	Male
Speciality	Obstetrics/gynecology
Experience	12 Years
Location	16305 Sand Canyon Ave Ste 225, Irvine, California
Accepts Medicare Assignments	Yes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Robert C Day attended and graduated from University Of Massachusetts Medical School in 2014

NPI Data:

NPI Number: 1841618634
Provider Enumeration Date: 03/31/2014
Last Update Date: 06/17/2025

Medicare PECOS Information:

PECOS PAC ID: 6204129315
Enrollment ID: I20180425001142

Medical Identifiers

Medical identifiers for Robert C Day such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1841618634	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207V00000X	Obstetrics & Gynecology	A139689 (California)	Secondary
207VM0101X	Obstetrics & Gynecology - Maternal & Fetal Medicine	A139689 (California)	Primary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Hoag Clinic	3274872064	347

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. Robert C Day allows following entities to bill medicare on his behalf.

Entity Name	University Of California Irvine
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1598790529 PECOS PAC ID: 5395658181 Enrollment ID: O20031107000431

Entity Name	Regents Of The University Of California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1356304034 PECOS PAC ID: 0143128009 Enrollment ID: O20031230000251

Entity Name	Hoag Clinic
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1942799523 PECOS PAC ID: 3274872064 Enrollment ID: O20190221001936

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. Robert C Day 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
Robert C Day, MD 395 Central St, Milford, MA 01757-3401 Ph: () -	Robert C Day, MD 16305 Sand Canyon Ave Ste 225, Irvine, CA 92618-3795 Ph: (949) 763-7451

Reviews and Comments

Obstetrics & Gynecology Doctors in Irvine, CA

Dr. Tiffany Wong Dote, MD Obstetrics & Gynecology Medicare: Medicare Enrolled Practice Location: 6650 Alton Pkwy, Women's Health Services Attn: Maria Vasquez, Irvine, CA 92618 Phone: 714-644-2381 Fax: 949-932-6348
Dr. Jessica H Chun, MD Obstetrics & Gynecology Medicare: Accepting Medicare Assignments Practice Location: 16105 Sand Canyon Ave Ste 200, Irvine, CA 92618 Phone: 949-829-5533 Fax: 949-581-9158
Ms. Maryellen Kathryn Shannon, MD Obstetrics & Gynecology Medicare: Medicare Enrolled Practice Location: 6 Hughes, Ste 100, Irvine, CA 92618 Phone: 949-680-1880 Fax: 949-680-1881
Miss Lisa Renee Crane, M.D. Obstetrics & Gynecology Medicare: Accepting Medicare Assignments Practice Location: 4050 Barranca Pkwy Ste 200, Irvine, CA 92604 Phone: 949-559-1911 Fax: 949-559-4071
Pantea Mozayeni, MD Obstetrics & Gynecology Medicare: Accepting Medicare Assignments Practice Location: 4050 Barranca Pkwy Ste 200, Irvine, CA 92604 Phone: 949-559-1911 Fax: 949-559-4071
Noah Rodriguez, MD Obstetrics & Gynecology Medicare: Accepting Medicare Assignments Practice Location: 6650 Alton Pkwy, Medical Office Building 2, 3rd Floor, Irvine, CA 92618 Phone: 949-932-5685 Fax: 949-932-6393
Dr. James P Lin, M.D. Obstetrics & Gynecology Medicare: Not Enrolled in Medicare Practice Location: 16300 Sand Canyon Ave, Suite 901, Irvine, CA 92618 Phone: 949-453-8600 Fax: 949-453-8601

Robert C Day, MD - Medicare Obstetrics/gynecology in Irvine, CA