Celina Allyn Mercer, MD - Medicare Family Practice in Petaluma, CA

Celina Allyn Mercer, MD is a medicare enrolled "Family Medicine" physician in Petaluma, California. She went to Tulane University School Of Medicine and graduated in 2020 and has 6 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Coastal Health Alliance, Petaluma Health Center Inc and her current practice location is 1179 N Mcdowell Blvd, Petaluma, California. You can reach out to her office (for appointments etc.) via phone at (707) 559-7500.

Celina Allyn Mercer is licensed to practice in California (license number A183797) 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 1245850585.

Contact Information

Celina Allyn Mercer, MD
1179 N Mcdowell Blvd,
Petaluma, CA 94954-6559
(707) 559-7500
Not Available

Map and Direction




Physician's Profile

Full NameCelina Allyn Mercer
GenderFemale
SpecialityFamily Practice
Experience6 Years
Location1179 N Mcdowell Blvd, Petaluma, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Celina Allyn Mercer attended and graduated from Tulane University School Of Medicine in 2020
  NPI Data:
  • NPI Number: 1245850585
  • Provider Enumeration Date: 04/16/2020
  • Last Update Date: 02/07/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2062872310
  • Enrollment ID: I20230718001969

Medical Identifiers

Medical identifiers for Celina Allyn Mercer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245850585NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A183797 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Petaluma Valley HospitalPetaluma, CAHospital
Santa Rosa Memorial HospitalSanta rosa, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Coastal Health Alliance731591993325
Petaluma Health Center Inc913318037562

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. Celina Allyn Mercer allows following entities to bill medicare on her behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348
Entity NamePetaluma Health Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588656268
PECOS PAC ID: 9133180375
Enrollment ID: O20050315000415
Entity NameIndian Health Center Of Santa Clara Valley
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881997963
PECOS PAC ID: 1153406665
Enrollment ID: O20120126000250

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. Celina Allyn Mercer 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
Celina Allyn Mercer, MD
1179 N Mcdowell Blvd,
Petaluma, CA 94954-6559

Ph: (707) 559-7500
Celina Allyn Mercer, MD
1179 N Mcdowell Blvd,
Petaluma, CA 94954-6559

Ph: (707) 559-7500

Reviews and Comments


Family Medicine Doctors in Petaluma, CA

Daniel G White, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3900 Lakeville Hwy, Petaluma, CA 94954
Phone: 707-765-3900    
Dr. Lana Ngoc Nguyen, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3835 Cypress Dr, Suite 102, Petaluma, CA 94954
Phone: 707-765-2425    Fax: 707-765-3974
Dr. Aleksey Zakinov,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3900 Lakeville Hwy, Petaluma, CA 94954
Phone: 707-765-3960    
Kelley Liao, MD
Family Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 335 S Mcdowell Blvd, Petaluma, CA 94954
Phone: 628-336-5260    Fax: 628-240-2138
Dr. Andrew Burns Ashcroft, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7510
Audra Lehman, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1301 Southpoint Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7570
Kelly Pfeifer, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1301 Southpoint Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7570

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.