Dr Rachel M Villalon, MD - Medicare Obstetrics/gynecology in Fairfield, CA

Dr Rachel M Villalon, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Fairfield, California. She graduated from medical school in 2009 and has 15 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Northbay Healthcare Group and her current practice location is 1860 Pennsylvania Ave, Suite 300, Fairfield, California. You can reach out to her office (for appointments etc.) via phone at (707) 646-4100.

Dr Rachel M Villalon is licensed to practice in California (license number A127041) 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 1083842843.

Contact Information

Dr Rachel M Villalon, MD
1860 Pennsylvania Ave, Suite 300,
Fairfield, CA 94533-3590
(707) 646-4100
(707) 646-4101

Map and Direction




Physician's Profile

Full NameDr Rachel M Villalon
GenderFemale
SpecialityObstetrics/gynecology
Experience15 Years
Location1860 Pennsylvania Ave, Fairfield, 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:
  • Dr Rachel M Villalon graduated from medical school in 2009
  NPI Data:
  • NPI Number: 1083842843
  • Provider Enumeration Date: 06/30/2009
  • Last Update Date: 04/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7911133673
  • Enrollment ID: I20140811002378

Medical Identifiers

Medical identifiers for Dr Rachel M Villalon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083842843NPI-NPPES
1083842843MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 256434 (Massachusetts)Secondary
207V00000XObstetrics & Gynecology A127041 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northbay Medical CenterFairfield, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northbay Healthcare Group0042122244238

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 Rachel M Villalon allows following entities to bill medicare on her behalf.
Entity NameNorthbay Healthcare Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821147786
PECOS PAC ID: 0042122244
Enrollment ID: O20031105000409
Entity NameObhg California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215258892
PECOS PAC ID: 8729276795
Enrollment ID: O20101217000826

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 Rachel M Villalon 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 Rachel M Villalon, MD
1860 Pennsylvania Ave, Suite 300,
Fairfield, CA 94533-3590

Ph: (707) 646-4100
Dr Rachel M Villalon, MD
1860 Pennsylvania Ave, Suite 300,
Fairfield, CA 94533-3590

Ph: (707) 646-4100

Reviews and Comments


Obstetrics & Gynecology Doctors in Fairfield, CA

Donovan Paul Shively, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 4397 Edinburg Ct, Fairfield, CA 94534
Phone: 707-864-2311    Fax: 707-864-2317
Dr. Parveen Khan, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1860 Pennsylvania Avenue, Suite #300, Fairfield, CA 94533
Phone: 707-646-4100    Fax: 707-646-4101
Sangeeta Joshi, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1550 Gateway Blvd, Fairfield, CA 94533
Phone: 707-427-4000    
Dr. Thomas Kevin Steckel, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 1514 Rockville Rd, Fairfield, CA 94534
Phone: 707-864-5556    
Dr. Frederick C Blair, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1234 Empire St, Fairfield, CA 94533
Phone: 707-427-4900    Fax: 707-428-2790
Pantea Pahlavan, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1860 Pennsylvania Ave, Suite 300a, Fairfield, CA 94533
Phone: 707-438-7600    Fax: 707-429-8604

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.