Dr Timmothy O Merrigan, MD - Medicare Family Practice in Walnut Creek, CA

Dr Timmothy O Merrigan, MD is a medicare enrolled "Family Medicine" physician in Walnut Creek, California. He went to Medical College Of Wisconsin and graduated in 1995 and has 29 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 320 Lennon Ln, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (924) 906-2326.

Dr Timmothy O Merrigan is licensed to practice in California (license number A63055) 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 1063442945.

Contact Information

Dr Timmothy O Merrigan, MD
320 Lennon Ln,
Walnut Creek, CA 94598-2419
(924) 906-2326
Not Available



Physician's Profile

Full NameDr Timmothy O Merrigan
GenderMale
SpecialityFamily Practice
Experience29 Years
Location320 Lennon Ln, Walnut Creek, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Timmothy O Merrigan attended and graduated from Medical College Of Wisconsin in 1995
  NPI Data:
  • NPI Number: 1063442945
  • Provider Enumeration Date: 07/04/2006
  • Last Update Date: 02/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8123166501
  • Enrollment ID: I20091104000416

Medical Identifiers

Medical identifiers for Dr Timmothy O Merrigan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063442945NPI-NPPES
00A630550MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A63055 (California)Primary

Group Practice Association

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

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Read more Medical News

› Verified 6 days ago

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. Dr Timmothy O Merrigan allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

News Archive

New report reviews current WIC food packages

Women and children who participate in the WIC program have low or inadequate intakes of several key nutrients that could be addressed with changes to the program's food packages, says a new report from the National Academies of Sciences, Engineering, and Medicine.

RDAVR system improves survival of patients with severe aortic stenosis

When replacing a defective aortic valve with a new one, restoring function is the first priority. However, variables such as durability, length of surgery, duration of heart stoppage, size of the surgical incision, postoperative pain, and complications are other important considerations.

UCSF researchers find way to knock down cancers caused by myc protein

UC San Francisco researchers have found a way to knock down cancers caused by a tumor-driving protein called "myc," paving the way for patients with myc-driven cancers to enroll in clinical trials for experimental treatments.

CT colonography remains an effective colorectal cancer screening tool for older individual

Computed tomographic colonography (CTC), also known as virtual colonoscopy, remains effective in screening older patients for colorectal cancer (CRC), produces low referral for colonoscopy rates similar to other screening exams now covered by Medicare, and does not result in unreasonable levels of additional testing resulting from extracolonic findings, according to a study published in the February issue of Radiology.

Read more Medical News

› Verified 6 days ago

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. Dr Timmothy O Merrigan 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
Dr Timmothy O Merrigan, MD
213 Southbrook Pl,
Clayton, CA 94517-1035

Ph: (925) 997-0093
Dr Timmothy O Merrigan, MD
320 Lennon Ln,
Walnut Creek, CA 94598-2419

Ph: (924) 906-2326

News Archive

New report reviews current WIC food packages

Women and children who participate in the WIC program have low or inadequate intakes of several key nutrients that could be addressed with changes to the program's food packages, says a new report from the National Academies of Sciences, Engineering, and Medicine.

RDAVR system improves survival of patients with severe aortic stenosis

When replacing a defective aortic valve with a new one, restoring function is the first priority. However, variables such as durability, length of surgery, duration of heart stoppage, size of the surgical incision, postoperative pain, and complications are other important considerations.

UCSF researchers find way to knock down cancers caused by myc protein

UC San Francisco researchers have found a way to knock down cancers caused by a tumor-driving protein called "myc," paving the way for patients with myc-driven cancers to enroll in clinical trials for experimental treatments.

CT colonography remains an effective colorectal cancer screening tool for older individual

Computed tomographic colonography (CTC), also known as virtual colonoscopy, remains effective in screening older patients for colorectal cancer (CRC), produces low referral for colonoscopy rates similar to other screening exams now covered by Medicare, and does not result in unreasonable levels of additional testing resulting from extracolonic findings, according to a study published in the February issue of Radiology.

Read more News

› Verified 6 days ago


Family Medicine Doctors in Walnut Creek, CA

Dr. Jasleen Sohal, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd, Suite 120b, Walnut Creek, CA 94597
Phone: 925-296-9720    Fax: 925-296-9034
Dr. Deborah A Greer, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd, Suite 160, Walnut Creek, CA 94597
Phone: 925-296-9000    Fax: 925-296-9071
Dr. Ruqaya Fatima, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd, Suite 160, Walnut Creek, CA 94597
Phone: 925-286-9000    Fax: 925-296-9071
Dr. Priti H Patel, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1450 Treat Blvd, Suite 120b, Walnut Creek, CA 94597
Phone: 925-296-9720    Fax: 925-296-9034
Dr. Nazneen Uddin, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
Phone: 925-947-3312    Fax: 925-947-3396
Amrit Kaur Toor,
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1450 Treat Blvd # 160, Walnut Creek, CA 94597
Phone: 925-296-9000    
Dr. Ehsan Hazrat, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd Ste 160, Walnut Creek, CA 94597
Phone: 925-296-9000    

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