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YASMIN CRESPO-MEJIAS MD, MPH
NPI 1073085601
Family Medicine in Vallejo, CA

Active since December 20, 2018PECOS EnrolledAccepts Medicare Assignment
975 SERENO DR, VALLEJO, CA 94589(707) 651-4801 Get Directions Write a Review

NPPES record last updated: January 13, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 6, 2023, Jan 24, 2023, Jun 10, 2020 and 1 more (4 updates tracked since 2018).

About Yasmin Crespo-mejias Md, Mph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

YASMIN CRESPO-MEJIAS MD, MPH (NPI 1073085601) is an individual family medicine provider in Vallejo, California, licensed in California (191302) and active in the NPI registry since December 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1073085601
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameYASMIN CRESPO-MEJIASCredential: MD, MPH
Location Address975 SERENO DRVallejo, CA 94589-2441
Mailing Address975 Sereno DrVallejo, CA 94589-2441 · (707) 651-4801
Phone(707) 651-4801
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateDecember 20, 2018
Last NPPES UpdateJanuary 13, 20244 updates tracked since enumeration
NPPES CertifiedJanuary 13, 2024
✔ NPI 1073085601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in CA · 191302✔ Licensed in PR · 22767
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
975 SERENO DR, Vallejo, CA 94589
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Yasmin Crespo-mejias Md, Mph is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103272869
PECOS Enrollment IDI20231101000731
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Yasmin Crespo-mejias reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
0.1 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000
La Clinica De La Raza, Inc.
0.6 mi
Federally Qualified Health Center (FQHC)
220 HOSPITAL DR
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 187 clinicians in this Medicare group
NPI 1720243454 (707) 641-1900
Ole Health
3.0 mi
Federally Qualified Health Center (FQHC)
3431 BROADWAY ST STE A8AND9
American Canyon, CA 94503
  • Reassigned Medicare billing, California enrollment
  • 116 clinicians in this Medicare group
NPI 1508573379 (707) 254-1770
San Mateo County
32 mi
Community/Behavioral Health
375 89TH ST
Daly City, CA 94015
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: County Of San Mateo
  • Also billed through NPI 1831268580 (California)
  • 597 clinicians in this Medicare group
NPI 1053367854 (650) 301-8650

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94589 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$98.85 typical visit price
range $65.02 – $191.95
Typical copayment $24.71 (range $16.25 – $47.98)
Most-billed visit code 99203
Established Patient
$113.05 typical visit price
range $21.86 – $157.69
Typical copayment $28.26 (range $5.46 – $39.42)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ROBERTA YIWUN WANG M.D.
Physical Medicine & Rehabilitation
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-5128
RIHONG ZHOU
Pharmacist
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-2072
EVAN HIRSCHBEIN
Student in an Organized Health Care Education/Training Program
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 339-2074
MS. JEAN BROADNAX LCSW
Social Worker (Clinical)
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-4423
SEAN NISAM
Student in an Organized Health Care Education/Training Program
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-4071
LI M. TSANG MD
Anesthesiology
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-1000
DONN R. ERICKSON MD
Family Medicine
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-1000
JOHN S. WOOD MD
Surgery
975 SERENO DR
VALLEJO, CA 94589
Napa County (707) 651-1000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Yasmin Crespo-mejias's NPI number?

The NPI number for Yasmin Crespo-mejias is 1073085601. It was assigned to this individual provider in the NPPES registry on December 20, 2018.

Where is Yasmin Crespo-mejias located?

Yasmin Crespo-mejias practices at 975 Sereno Dr, Vallejo, CA 94589. The listed phone number is (707) 651-4801.

What is Yasmin Crespo-mejias's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Yasmin Crespo-mejias enrolled in Medicare?

Yes. Yasmin Crespo-mejias is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Yasmin Crespo-mejias's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yasmin Crespo-mejias reassigns Medicare benefits to 4 organizations: Permanente Medical Group Inc (Vallejo, CA), La Clinica De La Raza, Inc. (Vallejo, CA), Ole Health (American Canyon, CA) and San Mateo County (Daly City, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yasmin Crespo-mejias's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Yasmin Crespo-mejias was last updated on January 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.