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

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Celina Allyn Mercer, MD is a medicare enrolled "Family Medicine" physician in Petaluma, California. 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 does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. 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 Medicine
Location1179 N Mcdowell Blvd, Petaluma, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1245850585
  • Provider Enumeration Date: 04/16/2020
  • Last Update Date: 07/08/2024
  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

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 NameUniversity Healthcare Alliance
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760531198
PECOS PAC ID: 6305748799
Enrollment ID: O20040126000292
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
19 Gretchen Pl,
Greenbrae, CA 94904-2497

Ph: (415) 378-4237		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. 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
Dr. Lisa Feth Pearson, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7620
Dr. Leah Beth Rorvig, M.D., M.S.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7620

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.