Yasmin Crespo-mejias, MD, MPH - Medicare Family Medicine in Vallejo, CA

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Yasmin Crespo-mejias, MD, MPH is a medicare enrolled "Family Medicine" physician in Vallejo, California. Her current practice location is 975 Sereno Dr, Vallejo, California. You can reach out to her office (for appointments etc.) via phone at (707) 651-4801.

Yasmin Crespo-mejias is licensed to practice in California (license number 191302) 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 1073085601.

Contact Information

Yasmin Crespo-mejias, MD, MPH
975 Sereno Dr,
Vallejo, CA 94589-2441
(707) 651-4801
Not Available

Map and Direction




Physician's Profile

Full NameYasmin Crespo-mejias
GenderFemale
SpecialityFamily Medicine
Location975 Sereno Dr, Vallejo, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1073085601
  • Provider Enumeration Date: 12/20/2018
  • Last Update Date: 01/13/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6103272869
  • Enrollment ID: I20231101000731

Medical Identifiers

Medical identifiers for Yasmin Crespo-mejias such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073085601NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 22767 (Puerto Rico)Secondary
207Q00000XFamily Medicine 191302 (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. Yasmin Crespo-mejias allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameCounty Of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679642326
PECOS PAC ID: 9032023171
Enrollment ID: O20031126000292
Entity NameCounty Of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831268580
PECOS PAC ID: 9032023171
Enrollment ID: O20040123000822
Entity NameLa Clinica De La Raza Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144336181
PECOS PAC ID: 1557258282
Enrollment ID: O20040227001016
Entity NameOle Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700976503
PECOS PAC ID: 7315934767
Enrollment ID: O20040427001735

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. Yasmin Crespo-mejias 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
Yasmin Crespo-mejias, MD, MPH
975 Sereno Dr,
Vallejo, CA 94589-2441

Ph: (707) 651-4801		Yasmin Crespo-mejias, MD, MPH
975 Sereno Dr,
Vallejo, CA 94589-2441

Ph: (707) 651-4801

Reviews and Comments


Family Medicine Doctors in Vallejo, CA

Laurena Nelly Dongmo Fotsing,
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Donn R. Erickson, MD
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Archana Krishnan,
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Practice Location: 800 Sereno Dr, Vallejo, CA 94589
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Saw Sein, MD
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Practice Location: 100 Hospital Dr Ste 304, Vallejo, CA 94589
Phone: 707-643-6483    Fax: 707-643-3018
Dr. Gabriel Flaxman, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
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Aaser Ali,
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Medicare: Medicare Enrolled
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    

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.